jro_apps/redmine Commit - r11344:53680edb2d80

Merged r11497 from trunk (#13329)....

Jean-Philippe Lang -

r11344:53680edb2d80

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r11344:53680edb2d80

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app/models/issue.rb +2 -1

              # Redmine - project management software
              # Copyright (C) 2006-2013  Jean-Philippe Lang
              #
              # This program is free software; you can redistribute it and/or
              # modify it under the terms of the GNU General Public License
              # as published by the Free Software Foundation; either version 2
              # of the License, or (at your option) any later version.
              #
              # This program is distributed in the hope that it will be useful,
              # but WITHOUT ANY WARRANTY; without even the implied warranty of
              # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
              # GNU General Public License for more details.
              #
              # You should have received a copy of the GNU General Public License
              # along with this program; if not, write to the Free Software
              # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
              class Issue < ActiveRecord::Base
                include Redmine::SafeAttributes
                include Redmine::Utils::DateCalculation
                belongs_to :project
                belongs_to :tracker
                belongs_to :status, :class_name => 'IssueStatus', :foreign_key => 'status_id'
                belongs_to :author, :class_name => 'User', :foreign_key => 'author_id'
                belongs_to :assigned_to, :class_name => 'Principal', :foreign_key => 'assigned_to_id'
                belongs_to :fixed_version, :class_name => 'Version', :foreign_key => 'fixed_version_id'
                belongs_to :priority, :class_name => 'IssuePriority', :foreign_key => 'priority_id'
                belongs_to :category, :class_name => 'IssueCategory', :foreign_key => 'category_id'
                has_many :journals, :as => :journalized, :dependent => :destroy
                has_many :visible_journals,
                  :class_name => 'Journal',
                  :as => :journalized,
                  :conditions => Proc.new {
                    ["(#{Journal.table_name}.private_notes = ? OR (#{Project.allowed_to_condition(User.current, :view_private_notes)}))", false]
                  },
                  :readonly => true
                has_many :time_entries, :dependent => :delete_all
                has_and_belongs_to_many :changesets, :order => "#{Changeset.table_name}.committed_on ASC, #{Changeset.table_name}.id ASC"
                has_many :relations_from, :class_name => 'IssueRelation', :foreign_key => 'issue_from_id', :dependent => :delete_all
                has_many :relations_to, :class_name => 'IssueRelation', :foreign_key => 'issue_to_id', :dependent => :delete_all
                acts_as_nested_set :scope => 'root_id', :dependent => :destroy
                acts_as_attachable :after_add => :attachment_added, :after_remove => :attachment_removed
                acts_as_customizable
                acts_as_watchable
                acts_as_searchable :columns => ['subject', "#{table_name}.description", "#{Journal.table_name}.notes"],
                                   :include => [:project, :visible_journals],
                                   # sort by id so that limited eager loading doesn't break with postgresql
                                   :order_column => "#{table_name}.id"
                acts_as_event :title => Proc.new {|o| "#{o.tracker.name} ##{o.id} (#{o.status}): #{o.subject}"},
                              :url => Proc.new {|o| {:controller => 'issues', :action => 'show', :id => o.id}},
                              :type => Proc.new {|o| 'issue' + (o.closed? ? ' closed' : '') }
                acts_as_activity_provider :find_options => {:include => [:project, :author, :tracker]},
                                          :author_key => :author_id
                DONE_RATIO_OPTIONS = %w(issue_field issue_status)
                attr_reader :current_journal
                delegate :notes, :notes=, :private_notes, :private_notes=, :to => :current_journal, :allow_nil => true
                validates_presence_of :subject, :priority, :project, :tracker, :author, :status
                validates_length_of :subject, :maximum => 255
                validates_inclusion_of :done_ratio, :in => 0..100
                validates :estimated_hours, :numericality => {:greater_than_or_equal_to => 0, :allow_nil => true, :message => :invalid}
                validates :start_date, :date => true
                validates :due_date, :date => true
                validate :validate_issue, :validate_required_fields
                scope :visible, lambda {|*args|
                  includes(:project).where(Issue.visible_condition(args.shift || User.current, *args))
                }
                scope :open, lambda {|*args|
                  is_closed = args.size > 0 ? !args.first : false
                  includes(:status).where("#{IssueStatus.table_name}.is_closed = ?", is_closed)
                }
                scope :recently_updated, lambda { order("#{Issue.table_name}.updated_on DESC") }
                scope :on_active_project, lambda {
                  includes(:status, :project, :tracker).where("#{Project.table_name}.status = ?", Project::STATUS_ACTIVE)
                }
                scope :fixed_version, lambda {|versions|
                  ids = [versions].flatten.compact.map {|v| v.is_a?(Version) ? v.id : v}
                  ids.any? ? where(:fixed_version_id => ids) : where('1=0')
                }
                before_create :default_assign
                before_save :close_duplicates, :update_done_ratio_from_issue_status, :force_updated_on_change, :update_closed_on
                after_save {|issue| issue.send :after_project_change if !issue.id_changed? && issue.project_id_changed?}
                after_save :reschedule_following_issues, :update_nested_set_attributes, :update_parent_attributes, :create_journal
                # Should be after_create but would be called before previous after_save callbacks
                after_save :after_create_from_copy
                after_destroy :update_parent_attributes
                # Returns a SQL conditions string used to find all issues visible by the specified user
                def self.visible_condition(user, options={})
                  Project.allowed_to_condition(user, :view_issues, options) do |role, user|
                    if user.logged?
                      case role.issues_visibility
                      when 'all'
                        nil
                      when 'default'
                        user_ids = [user.id] + user.groups.map(&:id)
                        "(#{table_name}.is_private = #{connection.quoted_false} OR #{table_name}.author_id = #{user.id} OR #{table_name}.assigned_to_id IN (#{user_ids.join(',')}))"
                      when 'own'
                        user_ids = [user.id] + user.groups.map(&:id)
                        "(#{table_name}.author_id = #{user.id} OR #{table_name}.assigned_to_id IN (#{user_ids.join(',')}))"
                      else
                        '1=0'
                      end
                    else
                      "(#{table_name}.is_private = #{connection.quoted_false})"
                    end
                  end
                end
                # Returns true if usr or current user is allowed to view the issue
                def visible?(usr=nil)
                  (usr || User.current).allowed_to?(:view_issues, self.project) do |role, user|
                    if user.logged?
                      case role.issues_visibility
                      when 'all'
                        true
                      when 'default'
                        !self.is_private? || (self.author == user || user.is_or_belongs_to?(assigned_to))
                      when 'own'
                        self.author == user || user.is_or_belongs_to?(assigned_to)
                      else
                        false
                      end
                    else
                      !self.is_private?
                    end
                  end
                end
                # Returns true if user or current user is allowed to edit or add a note to the issue
                def editable?(user=User.current)
                  user.allowed_to?(:edit_issues, project) || user.allowed_to?(:add_issue_notes, project)
                end
                def initialize(attributes=nil, *args)
                  super
                  if new_record?
                    # set default values for new records only
                    self.status ||= IssueStatus.default
                    self.priority ||= IssuePriority.default
                    self.watcher_user_ids = []
                  end
                end
                def create_or_update
                  super
                ensure
                  @status_was = nil
                end
                private :create_or_update
                # AR#Persistence#destroy would raise and RecordNotFound exception
                # if the issue was already deleted or updated (non matching lock_version).
                # This is a problem when bulk deleting issues or deleting a project
                # (because an issue may already be deleted if its parent was deleted
                # first).
                # The issue is reloaded by the nested_set before being deleted so
                # the lock_version condition should not be an issue but we handle it.
                def destroy
                  super
                rescue ActiveRecord::RecordNotFound
                  # Stale or already deleted
                  begin
                    reload
                  rescue ActiveRecord::RecordNotFound
                    # The issue was actually already deleted
                    @destroyed = true
                    return freeze
                  end
                  # The issue was stale, retry to destroy
                  super
                end
+               alias :base_reload :reload
                def reload(*args)
                  @workflow_rule_by_attribute = nil
                  @assignable_versions = nil
                  @relations = nil
-                 super
+                 base_reload(*args)
                end
                # Overrides Redmine::Acts::Customizable::InstanceMethods#available_custom_fields
                def available_custom_fields
                  (project && tracker) ? (project.all_issue_custom_fields & tracker.custom_fields.all) : []
                end
                # Copies attributes from another issue, arg can be an id or an Issue
                def copy_from(arg, options={})
                  issue = arg.is_a?(Issue) ? arg : Issue.visible.find(arg)
                  self.attributes = issue.attributes.dup.except("id", "root_id", "parent_id", "lft", "rgt", "created_on", "updated_on")
                  self.custom_field_values = issue.custom_field_values.inject({}) {|h,v| h[v.custom_field_id] = v.value; h}
                  self.status = issue.status
                  self.author = User.current
                  unless options[:attachments] == false
                    self.attachments = issue.attachments.map do |attachement|
                      attachement.copy(:container => self)
                    end
                  end
                  @copied_from = issue
                  @copy_options = options
                  self
                end
                # Returns an unsaved copy of the issue
                def copy(attributes=nil, copy_options={})
                  copy = self.class.new.copy_from(self, copy_options)
                  copy.attributes = attributes if attributes
                  copy
                end
                # Returns true if the issue is a copy
                def copy?
                  @copied_from.present?
                end
                # Moves/copies an issue to a new project and tracker
                # Returns the moved/copied issue on success, false on failure
                def move_to_project(new_project, new_tracker=nil, options={})
                  ActiveSupport::Deprecation.warn "Issue#move_to_project is deprecated, use #project= instead."
                  if options[:copy]
                    issue = self.copy
                  else
                    issue = self
                  end
                  issue.init_journal(User.current, options[:notes])
                  # Preserve previous behaviour
                  # #move_to_project doesn't change tracker automatically
                  issue.send :project=, new_project, true
                  if new_tracker
                    issue.tracker = new_tracker
                  end
                  # Allow bulk setting of attributes on the issue
                  if options[:attributes]
                    issue.attributes = options[:attributes]
                  end
                  issue.save ? issue : false
                end
                def status_id=(sid)
                  self.status = nil
                  result = write_attribute(:status_id, sid)
                  @workflow_rule_by_attribute = nil
                  result
                end
                def priority_id=(pid)
                  self.priority = nil
                  write_attribute(:priority_id, pid)
                end
                def category_id=(cid)
                  self.category = nil
                  write_attribute(:category_id, cid)
                end
                def fixed_version_id=(vid)
                  self.fixed_version = nil
                  write_attribute(:fixed_version_id, vid)
                end
                def tracker_id=(tid)
                  self.tracker = nil
                  result = write_attribute(:tracker_id, tid)
                  @custom_field_values = nil
                  @workflow_rule_by_attribute = nil
                  result
                end
                def project_id=(project_id)
                  if project_id.to_s != self.project_id.to_s
                    self.project = (project_id.present? ? Project.find_by_id(project_id) : nil)
                  end
                end
                def project=(project, keep_tracker=false)
                  project_was = self.project
                  write_attribute(:project_id, project ? project.id : nil)
                  association_instance_set('project', project)
                  if project_was && project && project_was != project
                    @assignable_versions = nil
                    unless keep_tracker || project.trackers.include?(tracker)
                      self.tracker = project.trackers.first
                    end
                    # Reassign to the category with same name if any
                    if category
                      self.category = project.issue_categories.find_by_name(category.name)
                    end
                    # Keep the fixed_version if it's still valid in the new_project
                    if fixed_version && fixed_version.project != project && !project.shared_versions.include?(fixed_version)
                      self.fixed_version = nil
                    end
                    # Clear the parent task if it's no longer valid
                    unless valid_parent_project?
                      self.parent_issue_id = nil
                    end
                    @custom_field_values = nil
                  end
                end
                def description=(arg)
                  if arg.is_a?(String)
                    arg = arg.gsub(/(\r\n|\n|\r)/, "\r\n")
                  end
                  write_attribute(:description, arg)
                end
                # Overrides assign_attributes so that project and tracker get assigned first
                def assign_attributes_with_project_and_tracker_first(new_attributes, *args)
                  return if new_attributes.nil?
                  attrs = new_attributes.dup
                  attrs.stringify_keys!
                  %w(project project_id tracker tracker_id).each do |attr|
                    if attrs.has_key?(attr)
                      send "#{attr}=", attrs.delete(attr)
                    end
                  end
                  send :assign_attributes_without_project_and_tracker_first, attrs, *args
                end
                # Do not redefine alias chain on reload (see #4838)
                alias_method_chain(:assign_attributes, :project_and_tracker_first) unless method_defined?(:assign_attributes_without_project_and_tracker_first)
                def estimated_hours=(h)
                  write_attribute :estimated_hours, (h.is_a?(String) ? h.to_hours : h)
                end
                safe_attributes 'project_id',
                  :if => lambda {|issue, user|
                    if issue.new_record?
                      issue.copy?
                    elsif user.allowed_to?(:move_issues, issue.project)
                      projects = Issue.allowed_target_projects_on_move(user)
                      projects.include?(issue.project) && projects.size > 1
                    end
                  }
                safe_attributes 'tracker_id',
                  'status_id',
                  'category_id',
                  'assigned_to_id',
                  'priority_id',
                  'fixed_version_id',
                  'subject',
                  'description',
                  'start_date',
                  'due_date',
                  'done_ratio',
                  'estimated_hours',
                  'custom_field_values',
                  'custom_fields',
                  'lock_version',
                  'notes',
                  :if => lambda {|issue, user| issue.new_record? || user.allowed_to?(:edit_issues, issue.project) }
                safe_attributes 'status_id',
                  'assigned_to_id',
                  'fixed_version_id',
                  'done_ratio',
                  'lock_version',
                  'notes',
                  :if => lambda {|issue, user| issue.new_statuses_allowed_to(user).any? }
                safe_attributes 'notes',
                  :if => lambda {|issue, user| user.allowed_to?(:add_issue_notes, issue.project)}
                safe_attributes 'private_notes',
                  :if => lambda {|issue, user| !issue.new_record? && user.allowed_to?(:set_notes_private, issue.project)}
                safe_attributes 'watcher_user_ids',
                  :if => lambda {|issue, user| issue.new_record? && user.allowed_to?(:add_issue_watchers, issue.project)}
                safe_attributes 'is_private',
                  :if => lambda {|issue, user|
                    user.allowed_to?(:set_issues_private, issue.project) ||
                      (issue.author == user && user.allowed_to?(:set_own_issues_private, issue.project))
                  }
                safe_attributes 'parent_issue_id',
                  :if => lambda {|issue, user| (issue.new_record? || user.allowed_to?(:edit_issues, issue.project)) &&
                    user.allowed_to?(:manage_subtasks, issue.project)}
                def safe_attribute_names(user=nil)
                  names = super
                  names -= disabled_core_fields
                  names -= read_only_attribute_names(user)
                  names
                end
                # Safely sets attributes
                # Should be called from controllers instead of #attributes=
                # attr_accessible is too rough because we still want things like
                # Issue.new(:project => foo) to work
                def safe_attributes=(attrs, user=User.current)
                  return unless attrs.is_a?(Hash)
                  attrs = attrs.dup
                  # Project and Tracker must be set before since new_statuses_allowed_to depends on it.
                  if (p = attrs.delete('project_id')) && safe_attribute?('project_id')
                    if allowed_target_projects(user).collect(&:id).include?(p.to_i)
                      self.project_id = p
                    end
                  end
                  if (t = attrs.delete('tracker_id')) && safe_attribute?('tracker_id')
                    self.tracker_id = t
                  end
                  if (s = attrs.delete('status_id')) && safe_attribute?('status_id')
                    if new_statuses_allowed_to(user).collect(&:id).include?(s.to_i)
                      self.status_id = s
                    end
                  end
                  attrs = delete_unsafe_attributes(attrs, user)
                  return if attrs.empty?
                  unless leaf?
                    attrs.reject! {|k,v| %w(priority_id done_ratio start_date due_date estimated_hours).include?(k)}
                  end
                  if attrs['parent_issue_id'].present?
                    s = attrs['parent_issue_id'].to_s
                    unless (m = s.match(%r{\A#?(\d+)\z})) && (m[1] == parent_id.to_s || Issue.visible(user).exists?(m[1]))
                      @invalid_parent_issue_id = attrs.delete('parent_issue_id')
                    end
                  end
                  if attrs['custom_field_values'].present?
                    attrs['custom_field_values'] = attrs['custom_field_values'].reject {|k, v| read_only_attribute_names(user).include? k.to_s}
                  end
                  if attrs['custom_fields'].present?
                    attrs['custom_fields'] = attrs['custom_fields'].reject {|c| read_only_attribute_names(user).include? c['id'].to_s}
                  end
                  # mass-assignment security bypass
                  assign_attributes attrs, :without_protection => true
                end
                def disabled_core_fields
                  tracker ? tracker.disabled_core_fields : []
                end
                # Returns the custom_field_values that can be edited by the given user
                def editable_custom_field_values(user=nil)
                  custom_field_values.reject do |value|
                    read_only_attribute_names(user).include?(value.custom_field_id.to_s)
                  end
                end
                # Returns the names of attributes that are read-only for user or the current user
                # For users with multiple roles, the read-only fields are the intersection of
                # read-only fields of each role
                # The result is an array of strings where sustom fields are represented with their ids
                #
                # Examples:
                #   issue.read_only_attribute_names # => ['due_date', '2']
                #   issue.read_only_attribute_names(user) # => []
                def read_only_attribute_names(user=nil)
                  workflow_rule_by_attribute(user).reject {|attr, rule| rule != 'readonly'}.keys
                end
                # Returns the names of required attributes for user or the current user
                # For users with multiple roles, the required fields are the intersection of
                # required fields of each role
                # The result is an array of strings where sustom fields are represented with their ids
                #
                # Examples:
                #   issue.required_attribute_names # => ['due_date', '2']
                #   issue.required_attribute_names(user) # => []
                def required_attribute_names(user=nil)
                  workflow_rule_by_attribute(user).reject {|attr, rule| rule != 'required'}.keys
                end
                # Returns true if the attribute is required for user
                def required_attribute?(name, user=nil)
                  required_attribute_names(user).include?(name.to_s)
                end
                # Returns a hash of the workflow rule by attribute for the given user
                #
                # Examples:
                #   issue.workflow_rule_by_attribute # => {'due_date' => 'required', 'start_date' => 'readonly'}
                def workflow_rule_by_attribute(user=nil)
                  return @workflow_rule_by_attribute if @workflow_rule_by_attribute && user.nil?
                  user_real = user || User.current
                  roles = user_real.admin ? Role.all : user_real.roles_for_project(project)
                  return {} if roles.empty?
                  result = {}
                  workflow_permissions = WorkflowPermission.where(:tracker_id => tracker_id, :old_status_id => status_id, :role_id => roles.map(&:id)).all
                  if workflow_permissions.any?
                    workflow_rules = workflow_permissions.inject({}) do |h, wp|
                      h[wp.field_name] ||= []
                      h[wp.field_name] << wp.rule
                      h
                    end
                    workflow_rules.each do |attr, rules|
                      next if rules.size < roles.size
                      uniq_rules = rules.uniq
                      if uniq_rules.size == 1
                        result[attr] = uniq_rules.first
                      else
                        result[attr] = 'required'
                      end
                    end
                  end
                  @workflow_rule_by_attribute = result if user.nil?
                  result
                end
                private :workflow_rule_by_attribute
                def done_ratio
                  if Issue.use_status_for_done_ratio? && status && status.default_done_ratio
                    status.default_done_ratio
                  else
                    read_attribute(:done_ratio)
                  end
                end
                def self.use_status_for_done_ratio?
                  Setting.issue_done_ratio == 'issue_status'
                end
                def self.use_field_for_done_ratio?
                  Setting.issue_done_ratio == 'issue_field'
                end
                def validate_issue
                  if due_date && start_date && due_date < start_date
                    errors.add :due_date, :greater_than_start_date
                  end
                  if start_date && soonest_start && start_date < soonest_start
                    errors.add :start_date, :invalid
                  end
                  if fixed_version
                    if !assignable_versions.include?(fixed_version)
                      errors.add :fixed_version_id, :inclusion
                    elsif reopened? && fixed_version.closed?
                      errors.add :base, I18n.t(:error_can_not_reopen_issue_on_closed_version)
                    end
                  end
                  # Checks that the issue can not be added/moved to a disabled tracker
                  if project && (tracker_id_changed? || project_id_changed?)
                    unless project.trackers.include?(tracker)
                      errors.add :tracker_id, :inclusion
                    end
                  end
                  # Checks parent issue assignment
                  if @invalid_parent_issue_id.present?
                    errors.add :parent_issue_id, :invalid
                  elsif @parent_issue
                    if !valid_parent_project?(@parent_issue)
                      errors.add :parent_issue_id, :invalid
                    elsif !new_record?
                      # moving an existing issue
                      if @parent_issue.root_id != root_id
                        # we can always move to another tree
                      elsif move_possible?(@parent_issue)
                        # move accepted inside tree
                      else
                        errors.add :parent_issue_id, :invalid
                      end
                    end
                  end
                end
                # Validates the issue against additional workflow requirements
                def validate_required_fields
                  user = new_record? ? author : current_journal.try(:user)
                  required_attribute_names(user).each do |attribute|
                    if attribute =~ /^\d+$/
                      attribute = attribute.to_i
                      v = custom_field_values.detect {|v| v.custom_field_id == attribute }
                      if v && v.value.blank?
                        errors.add :base, v.custom_field.name + ' ' + l('activerecord.errors.messages.blank')
                      end
                    else
                      if respond_to?(attribute) && send(attribute).blank?
                        errors.add attribute, :blank
                      end
                    end
                  end
                end
                # Set the done_ratio using the status if that setting is set.  This will keep the done_ratios
                # even if the user turns off the setting later
                def update_done_ratio_from_issue_status
                  if Issue.use_status_for_done_ratio? && status && status.default_done_ratio
                    self.done_ratio = status.default_done_ratio
                  end
                end
                def init_journal(user, notes = "")
                  @current_journal ||= Journal.new(:journalized => self, :user => user, :notes => notes)
                  if new_record?
                    @current_journal.notify = false
                  else
                    @attributes_before_change = attributes.dup
                    @custom_values_before_change = {}
                    self.custom_field_values.each {|c| @custom_values_before_change.store c.custom_field_id, c.value }
                  end
                  @current_journal
                end
                # Returns the id of the last journal or nil
                def last_journal_id
                  if new_record?
                    nil
                  else
                    journals.maximum(:id)
                  end
                end
                # Returns a scope for journals that have an id greater than journal_id
                def journals_after(journal_id)
                  scope = journals.reorder("#{Journal.table_name}.id ASC")
                  if journal_id.present?
                    scope = scope.where("#{Journal.table_name}.id > ?", journal_id.to_i)
                  end
                  scope
                end
                # Returns the initial status of the issue
                # Returns nil for a new issue
                def status_was
                  if status_id_was && status_id_was.to_i > 0
                    @status_was ||= IssueStatus.find_by_id(status_id_was)
                  end
                end
                # Return true if the issue is closed, otherwise false
                def closed?
                  self.status.is_closed?
                end
                # Return true if the issue is being reopened
                def reopened?
                  if !new_record? && status_id_changed?
                    status_was = IssueStatus.find_by_id(status_id_was)
                    status_new = IssueStatus.find_by_id(status_id)
                    if status_was && status_new && status_was.is_closed? && !status_new.is_closed?
                      return true
                    end
                  end
                  false
                end
                # Return true if the issue is being closed
                def closing?
                  if !new_record? && status_id_changed?
                    if status_was && status && !status_was.is_closed? && status.is_closed?
                      return true
                    end
                  end
                  false
                end
                # Returns true if the issue is overdue
                def overdue?
                  !due_date.nil? && (due_date < Date.today) && !status.is_closed?
                end
                # Is the amount of work done less than it should for the due date
                def behind_schedule?
                  return false if start_date.nil? || due_date.nil?
                  done_date = start_date + ((due_date - start_date+1)* done_ratio/100).floor
                  return done_date <= Date.today
                end
                # Does this issue have children?
                def children?
                  !leaf?
                end
                # Users the issue can be assigned to
                def assignable_users
                  users = project.assignable_users
                  users << author if author
                  users << assigned_to if assigned_to
                  users.uniq.sort
                end
                # Versions that the issue can be assigned to
                def assignable_versions
                  return @assignable_versions if @assignable_versions
                  versions = project.shared_versions.open.all
                  if fixed_version
                    if fixed_version_id_changed?
                      # nothing to do
                    elsif project_id_changed?
                      if project.shared_versions.include?(fixed_version)
                        versions << fixed_version
                      end
                    else
                      versions << fixed_version
                    end
                  end
                  @assignable_versions = versions.uniq.sort
                end
                # Returns true if this issue is blocked by another issue that is still open
                def blocked?
                  !relations_to.detect {|ir| ir.relation_type == 'blocks' && !ir.issue_from.closed?}.nil?
                end
                # Returns an array of statuses that user is able to apply
                def new_statuses_allowed_to(user=User.current, include_default=false)
                  if new_record? && @copied_from
                    [IssueStatus.default, @copied_from.status].compact.uniq.sort
                  else
                    initial_status = nil
                    if new_record?
                      initial_status = IssueStatus.default
                    elsif status_id_was
                      initial_status = IssueStatus.find_by_id(status_id_was)
                    end
                    initial_status ||= status
                    statuses = initial_status.find_new_statuses_allowed_to(
                      user.admin ? Role.all : user.roles_for_project(project),
                      tracker,
                      author == user,
                      assigned_to_id_changed? ? assigned_to_id_was == user.id : assigned_to_id == user.id
                      )
                    statuses << initial_status unless statuses.empty?
                    statuses << IssueStatus.default if include_default
                    statuses = statuses.compact.uniq.sort
                    blocked? ? statuses.reject {|s| s.is_closed?} : statuses
                  end
                end
                def assigned_to_was
                  if assigned_to_id_changed? && assigned_to_id_was.present?
                    @assigned_to_was ||= User.find_by_id(assigned_to_id_was)
                  end
                end
                # Returns the users that should be notified
                def notified_users
                  notified = []
                  # Author and assignee are always notified unless they have been
                  # locked or don't want to be notified
                  notified << author if author
                  if assigned_to
                    notified += (assigned_to.is_a?(Group) ? assigned_to.users : [assigned_to])
                  end
                  if assigned_to_was
                    notified += (assigned_to_was.is_a?(Group) ? assigned_to_was.users : [assigned_to_was])
                  end
                  notified = notified.select {|u| u.active? && u.notify_about?(self)}
                  notified += project.notified_users
                  notified.uniq!
                  # Remove users that can not view the issue
                  notified.reject! {|user| !visible?(user)}
                  notified
                end
                # Returns the email addresses that should be notified
                def recipients
                  notified_users.collect(&:mail)
                end
                # Returns the number of hours spent on this issue
                def spent_hours
                  @spent_hours ||= time_entries.sum(:hours) || 0
                end
                # Returns the total number of hours spent on this issue and its descendants
                #
                # Example:
                #   spent_hours => 0.0
                #   spent_hours => 50.2
                def total_spent_hours
                  @total_spent_hours ||= self_and_descendants.sum("#{TimeEntry.table_name}.hours",
                    :joins => "LEFT JOIN #{TimeEntry.table_name} ON #{TimeEntry.table_name}.issue_id = #{Issue.table_name}.id").to_f || 0.0
                end
                def relations
                  @relations ||= IssueRelation::Relations.new(self, (relations_from + relations_to).sort)
                end
                # Preloads relations for a collection of issues
                def self.load_relations(issues)
                  if issues.any?
                    relations = IssueRelation.all(:conditions => ["issue_from_id IN (:ids) OR issue_to_id IN (:ids)", {:ids => issues.map(&:id)}])
                    issues.each do |issue|
                      issue.instance_variable_set "@relations", relations.select {|r| r.issue_from_id == issue.id || r.issue_to_id == issue.id}
                    end
                  end
                end
                # Preloads visible spent time for a collection of issues
                def self.load_visible_spent_hours(issues, user=User.current)
                  if issues.any?
                    hours_by_issue_id = TimeEntry.visible(user).sum(:hours, :group => :issue_id)
                    issues.each do |issue|
                      issue.instance_variable_set "@spent_hours", (hours_by_issue_id[issue.id] || 0)
                    end
                  end
                end
                # Preloads visible relations for a collection of issues
                def self.load_visible_relations(issues, user=User.current)
                  if issues.any?
                    issue_ids = issues.map(&:id)
                    # Relations with issue_from in given issues and visible issue_to
                    relations_from = IssueRelation.includes(:issue_to => [:status, :project]).where(visible_condition(user)).where(:issue_from_id => issue_ids).all
                    # Relations with issue_to in given issues and visible issue_from
                    relations_to = IssueRelation.includes(:issue_from => [:status, :project]).where(visible_condition(user)).where(:issue_to_id => issue_ids).all
                    issues.each do |issue|
                      relations =
                        relations_from.select {|relation| relation.issue_from_id == issue.id} +
                        relations_to.select {|relation| relation.issue_to_id == issue.id}
                      issue.instance_variable_set "@relations", IssueRelation::Relations.new(issue, relations.sort)
                    end
                  end
                end
                # Finds an issue relation given its id.
                def find_relation(relation_id)
                  IssueRelation.find(relation_id, :conditions => ["issue_to_id = ? OR issue_from_id = ?", id, id])
                end
                def all_dependent_issues(except=[])
                  except << self
                  dependencies = []
                  relations_from.each do |relation|
                    if relation.issue_to && !except.include?(relation.issue_to)
                      dependencies << relation.issue_to
                      dependencies += relation.issue_to.all_dependent_issues(except)
                    end
                  end
                  dependencies
                end
                # Returns an array of issues that duplicate this one
                def duplicates
                  relations_to.select {|r| r.relation_type == IssueRelation::TYPE_DUPLICATES}.collect {|r| r.issue_from}
                end
                # Returns the due date or the target due date if any
                # Used on gantt chart
                def due_before
                  due_date || (fixed_version ? fixed_version.effective_date : nil)
                end
                # Returns the time scheduled for this issue.
                #
                # Example:
                #   Start Date: 2/26/09, End Date: 3/04/09
                #   duration => 6
                def duration
                  (start_date && due_date) ? due_date - start_date : 0
                end
                # Returns the duration in working days
                def working_duration
                  (start_date && due_date) ? working_days(start_date, due_date) : 0
                end
                def soonest_start(reload=false)
                  @soonest_start = nil if reload
                  @soonest_start ||= (
                      relations_to(reload).collect{|relation| relation.successor_soonest_start} +
                      ancestors.collect(&:soonest_start)
                    ).compact.max
                end
                # Sets start_date on the given date or the next working day
                # and changes due_date to keep the same working duration.
                def reschedule_on(date)
                  wd = working_duration
                  date = next_working_date(date)
                  self.start_date = date
                  self.due_date = add_working_days(date, wd)
                end
                # Reschedules the issue on the given date or the next working day and saves the record.
                # If the issue is a parent task, this is done by rescheduling its subtasks.
                def reschedule_on!(date)
                  return if date.nil?
                  if leaf?
                    if start_date.nil? || start_date != date
                      if start_date && start_date > date
                        # Issue can not be moved earlier than its soonest start date
                        date = [soonest_start(true), date].compact.max
                      end
                      reschedule_on(date)
                      begin
                        save
                      rescue ActiveRecord::StaleObjectError
                        reload
                        reschedule_on(date)
                        save
                      end
                    end
                  else
                    leaves.each do |leaf|
                      if leaf.start_date
                        # Only move subtask if it starts at the same date as the parent
                        # or if it starts before the given date
                        if start_date == leaf.start_date || date > leaf.start_date
                          leaf.reschedule_on!(date)
                        end
                      else
                        leaf.reschedule_on!(date)
                      end
                    end
                  end
                end
                def <=>(issue)
                  if issue.nil?
                    -1
                  elsif root_id != issue.root_id
                    (root_id || 0) <=> (issue.root_id || 0)
                  else
                    (lft || 0) <=> (issue.lft || 0)
                  end
                end
                def to_s
                  "#{tracker} ##{id}: #{subject}"
                end
                # Returns a string of css classes that apply to the issue
                def css_classes
                  s = "issue tracker-#{tracker_id} status-#{status_id} #{priority.try(:css_classes)}"
                  s << ' closed' if closed?
                  s << ' overdue' if overdue?
                  s << ' child' if child?
                  s << ' parent' unless leaf?
                  s << ' private' if is_private?
                  s << ' created-by-me' if User.current.logged? && author_id == User.current.id
                  s << ' assigned-to-me' if User.current.logged? && assigned_to_id == User.current.id
                  s
                end
                # Saves an issue and a time_entry from the parameters
                def save_issue_with_child_records(params, existing_time_entry=nil)
                  Issue.transaction do
                    if params[:time_entry] && (params[:time_entry][:hours].present? || params[:time_entry][:comments].present?) && User.current.allowed_to?(:log_time, project)
                      @time_entry = existing_time_entry || TimeEntry.new
                      @time_entry.project = project
                      @time_entry.issue = self
                      @time_entry.user = User.current
                      @time_entry.spent_on = User.current.today
                      @time_entry.attributes = params[:time_entry]
                      self.time_entries << @time_entry
                    end
                    # TODO: Rename hook
                    Redmine::Hook.call_hook(:controller_issues_edit_before_save, { :params => params, :issue => self, :time_entry => @time_entry, :journal => @current_journal})
                    if save
                      # TODO: Rename hook
                      Redmine::Hook.call_hook(:controller_issues_edit_after_save, { :params => params, :issue => self, :time_entry => @time_entry, :journal => @current_journal})
                    else
                      raise ActiveRecord::Rollback
                    end
                  end
                end
                # Unassigns issues from +version+ if it's no longer shared with issue's project
                def self.update_versions_from_sharing_change(version)
                  # Update issues assigned to the version
                  update_versions(["#{Issue.table_name}.fixed_version_id = ?", version.id])
                end
                # Unassigns issues from versions that are no longer shared
                # after +project+ was moved
                def self.update_versions_from_hierarchy_change(project)
                  moved_project_ids = project.self_and_descendants.reload.collect(&:id)
                  # Update issues of the moved projects and issues assigned to a version of a moved project
                  Issue.update_versions(["#{Version.table_name}.project_id IN (?) OR #{Issue.table_name}.project_id IN (?)", moved_project_ids, moved_project_ids])
                end
                def parent_issue_id=(arg)
                  s = arg.to_s.strip.presence
                  if s && (m = s.match(%r{\A#?(\d+)\z})) && (@parent_issue = Issue.find_by_id(m[1]))
                    @parent_issue.id
                  else
                    @parent_issue = nil
                    @invalid_parent_issue_id = arg
                  end
                end
                def parent_issue_id
                  if @invalid_parent_issue_id
                    @invalid_parent_issue_id
                  elsif instance_variable_defined? :@parent_issue
                    @parent_issue.nil? ? nil : @parent_issue.id
                  else
                    parent_id
                  end
                end
                # Returns true if issue's project is a valid
                # parent issue project
                def valid_parent_project?(issue=parent)
                  return true if issue.nil? || issue.project_id == project_id
                  case Setting.cross_project_subtasks
                  when 'system'
                    true
                  when 'tree'
                    issue.project.root == project.root
                  when 'hierarchy'
                    issue.project.is_or_is_ancestor_of?(project) || issue.project.is_descendant_of?(project)
                  when 'descendants'
                    issue.project.is_or_is_ancestor_of?(project)
                  else
                    false
                  end
                end
                # Extracted from the ReportsController.
                def self.by_tracker(project)
                  count_and_group_by(:project => project,
                                     :field => 'tracker_id',
                                     :joins => Tracker.table_name)
                end
                def self.by_version(project)
                  count_and_group_by(:project => project,
                                     :field => 'fixed_version_id',
                                     :joins => Version.table_name)
                end
                def self.by_priority(project)
                  count_and_group_by(:project => project,
                                     :field => 'priority_id',
                                     :joins => IssuePriority.table_name)
                end
                def self.by_category(project)
                  count_and_group_by(:project => project,
                                     :field => 'category_id',
                                     :joins => IssueCategory.table_name)
                end
                def self.by_assigned_to(project)
                  count_and_group_by(:project => project,
                                     :field => 'assigned_to_id',
                                     :joins => User.table_name)
                end
                def self.by_author(project)
                  count_and_group_by(:project => project,
                                     :field => 'author_id',
                                     :joins => User.table_name)
                end
                def self.by_subproject(project)
                  ActiveRecord::Base.connection.select_all("select    s.id as status_id,
                                                              s.is_closed as closed,
                                                              #{Issue.table_name}.project_id as project_id,
                                                              count(#{Issue.table_name}.id) as total
                                                            from
                                                              #{Issue.table_name}, #{Project.table_name}, #{IssueStatus.table_name} s
                                                            where
                                                              #{Issue.table_name}.status_id=s.id
                                                              and #{Issue.table_name}.project_id = #{Project.table_name}.id
                                                              and #{visible_condition(User.current, :project => project, :with_subprojects => true)}
                                                              and #{Issue.table_name}.project_id <> #{project.id}
                                                            group by s.id, s.is_closed, #{Issue.table_name}.project_id") if project.descendants.active.any?
                end
                # End ReportsController extraction
                # Returns an array of projects that user can assign the issue to
                def allowed_target_projects(user=User.current)
                  if new_record?
                    Project.all(:conditions => Project.allowed_to_condition(user, :add_issues))
                  else
                    self.class.allowed_target_projects_on_move(user)
                  end
                end
                # Returns an array of projects that user can move issues to
                def self.allowed_target_projects_on_move(user=User.current)
                  Project.all(:conditions => Project.allowed_to_condition(user, :move_issues))
                end
                private
                def after_project_change
                  # Update project_id on related time entries
                  TimeEntry.update_all(["project_id = ?", project_id], {:issue_id => id})
                  # Delete issue relations
                  unless Setting.cross_project_issue_relations?
                    relations_from.clear
                    relations_to.clear
                  end
                  # Move subtasks that were in the same project
                  children.each do |child|
                    next unless child.project_id == project_id_was
                    # Change project and keep project
                    child.send :project=, project, true
                    unless child.save
                      raise ActiveRecord::Rollback
                    end
                  end
                end
                # Callback for after the creation of an issue by copy
                # * adds a "copied to" relation with the copied issue
                # * copies subtasks from the copied issue
                def after_create_from_copy
                  return unless copy? && !@after_create_from_copy_handled
                  if (@copied_from.project_id == project_id || Setting.cross_project_issue_relations?) && @copy_options[:link] != false
                    relation = IssueRelation.new(:issue_from => @copied_from, :issue_to => self, :relation_type => IssueRelation::TYPE_COPIED_TO)
                    unless relation.save
                      logger.error "Could not create relation while copying ##{@copied_from.id} to ##{id} due to validation errors: #{relation.errors.full_messages.join(', ')}" if logger
                    end
                  end
                  unless @copied_from.leaf? || @copy_options[:subtasks] == false
                    copy_options = (@copy_options || {}).merge(:subtasks => false)
                    copied_issue_ids = {@copied_from.id => self.id}
                    @copied_from.reload.descendants.reorder("#{Issue.table_name}.lft").each do |child|
                      # Do not copy self when copying an issue as a descendant of the copied issue
                      next if child == self
                      # Do not copy subtasks of issues that were not copied
                      next unless copied_issue_ids[child.parent_id]
                      # Do not copy subtasks that are not visible to avoid potential disclosure of private data
                      unless child.visible?
                        logger.error "Subtask ##{child.id} was not copied during ##{@copied_from.id} copy because it is not visible to the current user" if logger
                        next
                      end
                      copy = Issue.new.copy_from(child, copy_options)
                      copy.author = author
                      copy.project = project
                      copy.parent_issue_id = copied_issue_ids[child.parent_id]
                      unless copy.save
                        logger.error "Could not copy subtask ##{child.id} while copying ##{@copied_from.id} to ##{id} due to validation errors: #{copy.errors.full_messages.join(', ')}" if logger
                        next
                      end
                      copied_issue_ids[child.id] = copy.id
                    end
                  end
                  @after_create_from_copy_handled = true
                end
                def update_nested_set_attributes
                  if root_id.nil?
                    # issue was just created
                    self.root_id = (@parent_issue.nil? ? id : @parent_issue.root_id)
                    set_default_left_and_right
                    Issue.update_all("root_id = #{root_id}, lft = #{lft}, rgt = #{rgt}", ["id = ?", id])
                    if @parent_issue
                      move_to_child_of(@parent_issue)
                    end
                    reload
                  elsif parent_issue_id != parent_id
                    former_parent_id = parent_id
                    # moving an existing issue
                    if @parent_issue && @parent_issue.root_id == root_id
                      # inside the same tree
                      move_to_child_of(@parent_issue)
                    else
                      # to another tree
                      unless root?
                        move_to_right_of(root)
                        reload
                      end
                      old_root_id = root_id
                      self.root_id = (@parent_issue.nil? ? id : @parent_issue.root_id )
                      target_maxright = nested_set_scope.maximum(right_column_name) || 0
                      offset = target_maxright + 1 - lft
                      Issue.update_all("root_id = #{root_id}, lft = lft + #{offset}, rgt = rgt + #{offset}",
                                        ["root_id = ? AND lft >= ? AND rgt <= ? ", old_root_id, lft, rgt])
                      self[left_column_name] = lft + offset
                      self[right_column_name] = rgt + offset
                      if @parent_issue
                        move_to_child_of(@parent_issue)
                      end
                    end
                    reload
                    # delete invalid relations of all descendants
                    self_and_descendants.each do |issue|
                      issue.relations.each do |relation|
                        relation.destroy unless relation.valid?
                      end
                    end
                    # update former parent
                    recalculate_attributes_for(former_parent_id) if former_parent_id
                  end
                  remove_instance_variable(:@parent_issue) if instance_variable_defined?(:@parent_issue)
                end
                def update_parent_attributes
                  recalculate_attributes_for(parent_id) if parent_id
                end
                def recalculate_attributes_for(issue_id)
                  if issue_id && p = Issue.find_by_id(issue_id)
                    # priority = highest priority of children
                    if priority_position = p.children.maximum("#{IssuePriority.table_name}.position", :joins => :priority)
                      p.priority = IssuePriority.find_by_position(priority_position)
                    end
                    # start/due dates = lowest/highest dates of children
                    p.start_date = p.children.minimum(:start_date)
                    p.due_date = p.children.maximum(:due_date)
                    if p.start_date && p.due_date && p.due_date < p.start_date
                      p.start_date, p.due_date = p.due_date, p.start_date
                    end
                    # done ratio = weighted average ratio of leaves
                    unless Issue.use_status_for_done_ratio? && p.status && p.status.default_done_ratio
                      leaves_count = p.leaves.count
                      if leaves_count > 0
                        average = p.leaves.average(:estimated_hours).to_f
                        if average == 0
                          average = 1
                        end
                        done = p.leaves.sum("COALESCE(estimated_hours, #{average}) * (CASE WHEN is_closed = #{connection.quoted_true} THEN 100 ELSE COALESCE(done_ratio, 0) END)", :joins => :status).to_f
                        progress = done / (average * leaves_count)
                        p.done_ratio = progress.round
                      end
                    end
                    # estimate = sum of leaves estimates
                    p.estimated_hours = p.leaves.sum(:estimated_hours).to_f
                    p.estimated_hours = nil if p.estimated_hours == 0.0
                    # ancestors will be recursively updated
                    p.save(:validate => false)
                  end
                end
                # Update issues so their versions are not pointing to a
                # fixed_version that is not shared with the issue's project
                def self.update_versions(conditions=nil)
                  # Only need to update issues with a fixed_version from
                  # a different project and that is not systemwide shared
                  Issue.scoped(:conditions => conditions).all(
                    :conditions => "#{Issue.table_name}.fixed_version_id IS NOT NULL" +
                      " AND #{Issue.table_name}.project_id <> #{Version.table_name}.project_id" +
                      " AND #{Version.table_name}.sharing <> 'system'",
                    :include => [:project, :fixed_version]
                  ).each do |issue|
                    next if issue.project.nil? || issue.fixed_version.nil?
                    unless issue.project.shared_versions.include?(issue.fixed_version)
                      issue.init_journal(User.current)
                      issue.fixed_version = nil
                      issue.save
                    end
                  end
                end
                # Callback on file attachment
                def attachment_added(obj)
                  if @current_journal && !obj.new_record?
                    @current_journal.details << JournalDetail.new(:property => 'attachment', :prop_key => obj.id, :value => obj.filename)
                  end
                end
                # Callback on attachment deletion
                def attachment_removed(obj)
                  if @current_journal && !obj.new_record?
                    @current_journal.details << JournalDetail.new(:property => 'attachment', :prop_key => obj.id, :old_value => obj.filename)
                    @current_journal.save
                  end
                end
                # Default assignment based on category
                def default_assign
                  if assigned_to.nil? && category && category.assigned_to
                    self.assigned_to = category.assigned_to
                  end
                end
                # Updates start/due dates of following issues
                def reschedule_following_issues
                  if start_date_changed? || due_date_changed?
                    relations_from.each do |relation|
                      relation.set_issue_to_dates
                    end
                  end
                end
                # Closes duplicates if the issue is being closed
                def close_duplicates
                  if closing?
                    duplicates.each do |duplicate|
                      # Reload is need in case the duplicate was updated by a previous duplicate
                      duplicate.reload
                      # Don't re-close it if it's already closed
                      next if duplicate.closed?
                      # Same user and notes
                      if @current_journal
                        duplicate.init_journal(@current_journal.user, @current_journal.notes)
                      end
                      duplicate.update_attribute :status, self.status
                    end
                  end
                end
                # Make sure updated_on is updated when adding a note and set updated_on now
                # so we can set closed_on with the same value on closing
                def force_updated_on_change
                  if @current_journal || changed?
                    self.updated_on = current_time_from_proper_timezone
                    if new_record?
                      self.created_on = updated_on
                    end
                  end
                end
                # Callback for setting closed_on when the issue is closed.
                # The closed_on attribute stores the time of the last closing
                # and is preserved when the issue is reopened.
                def update_closed_on
                  if closing? || (new_record? && closed?)
                    self.closed_on = updated_on
                  end
                end
                # Saves the changes in a Journal
                # Called after_save
                def create_journal
                  if @current_journal
                    # attributes changes
                    if @attributes_before_change
                      (Issue.column_names - %w(id root_id lft rgt lock_version created_on updated_on closed_on)).each {|c|
                        before = @attributes_before_change[c]
                        after = send(c)
                        next if before == after || (before.blank? && after.blank?)
                        @current_journal.details << JournalDetail.new(:property => 'attr',
                                                                      :prop_key => c,
                                                                      :old_value => before,
                                                                      :value => after)
                      }
                    end
                    if @custom_values_before_change
                      # custom fields changes
                      custom_field_values.each {|c|
                        before = @custom_values_before_change[c.custom_field_id]
                        after = c.value
                        next if before == after || (before.blank? && after.blank?)
                        if before.is_a?(Array) || after.is_a?(Array)
                          before = [before] unless before.is_a?(Array)
                          after = [after] unless after.is_a?(Array)
                          # values removed
                          (before - after).reject(&:blank?).each do |value|
                            @current_journal.details << JournalDetail.new(:property => 'cf',
                                                                          :prop_key => c.custom_field_id,
                                                                          :old_value => value,
                                                                          :value => nil)
                          end
                          # values added
                          (after - before).reject(&:blank?).each do |value|
                            @current_journal.details << JournalDetail.new(:property => 'cf',
                                                                          :prop_key => c.custom_field_id,
                                                                          :old_value => nil,
                                                                          :value => value)
                          end
                        else
                          @current_journal.details << JournalDetail.new(:property => 'cf',
                                                                        :prop_key => c.custom_field_id,
                                                                        :old_value => before,
                                                                        :value => after)
                        end
                      }
                    end
                    @current_journal.save
                    # reset current journal
                    init_journal @current_journal.user, @current_journal.notes
                  end
                end
                # Query generator for selecting groups of issue counts for a project
                # based on specific criteria
                #
                # Options
                # * project - Project to search in.
                # * field - String. Issue field to key off of in the grouping.
                # * joins - String. The table name to join against.
                def self.count_and_group_by(options)
                  project = options.delete(:project)
                  select_field = options.delete(:field)
                  joins = options.delete(:joins)
                  where = "#{Issue.table_name}.#{select_field}=j.id"
                  ActiveRecord::Base.connection.select_all("select    s.id as status_id,
                                                              s.is_closed as closed,
                                                              j.id as #{select_field},
                                                              count(#{Issue.table_name}.id) as total
                                                            from
                                                                #{Issue.table_name}, #{Project.table_name}, #{IssueStatus.table_name} s, #{joins} j
                                                            where
                                                              #{Issue.table_name}.status_id=s.id
                                                              and #{where}
                                                              and #{Issue.table_name}.project_id=#{Project.table_name}.id
                                                              and #{visible_condition(User.current, :project => project)}
                                                            group by s.id, s.is_closed, j.id")
                end
              end

app/models/project.rb +2 -1

              # Redmine - project management software
              # Copyright (C) 2006-2013  Jean-Philippe Lang
              #
              # This program is free software; you can redistribute it and/or
              # modify it under the terms of the GNU General Public License
              # as published by the Free Software Foundation; either version 2
              # of the License, or (at your option) any later version.
              #
              # This program is distributed in the hope that it will be useful,
              # but WITHOUT ANY WARRANTY; without even the implied warranty of
              # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
              # GNU General Public License for more details.
              #
              # You should have received a copy of the GNU General Public License
              # along with this program; if not, write to the Free Software
              # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
              class Project < ActiveRecord::Base
                include Redmine::SafeAttributes
                # Project statuses
                STATUS_ACTIVE     = 1
                STATUS_CLOSED     = 5
                STATUS_ARCHIVED   = 9
                # Maximum length for project identifiers
                IDENTIFIER_MAX_LENGTH = 100
                # Specific overidden Activities
                has_many :time_entry_activities
                has_many :members, :include => [:principal, :roles], :conditions => "#{Principal.table_name}.type='User' AND #{Principal.table_name}.status=#{Principal::STATUS_ACTIVE}"
                has_many :memberships, :class_name => 'Member'
                has_many :member_principals, :class_name => 'Member',
                                             :include => :principal,
                                             :conditions => "#{Principal.table_name}.type='Group' OR (#{Principal.table_name}.type='User' AND #{Principal.table_name}.status=#{Principal::STATUS_ACTIVE})"
                has_many :users, :through => :members
                has_many :principals, :through => :member_principals, :source => :principal
                has_many :enabled_modules, :dependent => :delete_all
                has_and_belongs_to_many :trackers, :order => "#{Tracker.table_name}.position"
                has_many :issues, :dependent => :destroy, :include => [:status, :tracker]
                has_many :issue_changes, :through => :issues, :source => :journals
                has_many :versions, :dependent => :destroy, :order => "#{Version.table_name}.effective_date DESC, #{Version.table_name}.name DESC"
                has_many :time_entries, :dependent => :delete_all
                has_many :queries, :class_name => 'IssueQuery', :dependent => :delete_all
                has_many :documents, :dependent => :destroy
                has_many :news, :dependent => :destroy, :include => :author
                has_many :issue_categories, :dependent => :delete_all, :order => "#{IssueCategory.table_name}.name"
                has_many :boards, :dependent => :destroy, :order => "position ASC"
                has_one :repository, :conditions => ["is_default = ?", true]
                has_many :repositories, :dependent => :destroy
                has_many :changesets, :through => :repository
                has_one :wiki, :dependent => :destroy
                # Custom field for the project issues
                has_and_belongs_to_many :issue_custom_fields,
                                        :class_name => 'IssueCustomField',
                                        :order => "#{CustomField.table_name}.position",
                                        :join_table => "#{table_name_prefix}custom_fields_projects#{table_name_suffix}",
                                        :association_foreign_key => 'custom_field_id'
                acts_as_nested_set :order => 'name', :dependent => :destroy
                acts_as_attachable :view_permission => :view_files,
                                   :delete_permission => :manage_files
                acts_as_customizable
                acts_as_searchable :columns => ['name', 'identifier', 'description'], :project_key => 'id', :permission => nil
                acts_as_event :title => Proc.new {|o| "#{l(:label_project)}: #{o.name}"},
                              :url => Proc.new {|o| {:controller => 'projects', :action => 'show', :id => o}},
                              :author => nil
                attr_protected :status
                validates_presence_of :name, :identifier
                validates_uniqueness_of :identifier
                validates_associated :repository, :wiki
                validates_length_of :name, :maximum => 255
                validates_length_of :homepage, :maximum => 255
                validates_length_of :identifier, :in => 1..IDENTIFIER_MAX_LENGTH
                # donwcase letters, digits, dashes but not digits only
                validates_format_of :identifier, :with => /\A(?!\d+$)[a-z0-9\-_]*\z/, :if => Proc.new { |p| p.identifier_changed? }
                # reserved words
                validates_exclusion_of :identifier, :in => %w( new )
                after_save :update_position_under_parent, :if => Proc.new {|project| project.name_changed?}
                after_save :update_inherited_members, :if => Proc.new {|project| project.inherit_members_changed?}
                before_destroy :delete_all_members
                scope :has_module, lambda {|mod|
                  where("#{Project.table_name}.id IN (SELECT em.project_id FROM #{EnabledModule.table_name} em WHERE em.name=?)", mod.to_s)
                }
                scope :active, lambda { where(:status => STATUS_ACTIVE) }
                scope :status, lambda {|arg| where(arg.blank? ? nil : {:status => arg.to_i}) }
                scope :all_public, lambda { where(:is_public => true) }
                scope :visible, lambda {|*args| where(Project.visible_condition(args.shift || User.current, *args)) }
                scope :allowed_to, lambda {|*args|
                  user = User.current
                  permission = nil
                  if args.first.is_a?(Symbol)
                    permission = args.shift
                  else
                    user = args.shift
                    permission = args.shift
                  end
                  where(Project.allowed_to_condition(user, permission, *args))
                }
                scope :like, lambda {|arg|
                  if arg.blank?
                    where(nil)
                  else
                    pattern = "%#{arg.to_s.strip.downcase}%"
                    where("LOWER(identifier) LIKE :p OR LOWER(name) LIKE :p", :p => pattern)
                  end
                }
                def initialize(attributes=nil, *args)
                  super
                  initialized = (attributes || {}).stringify_keys
                  if !initialized.key?('identifier') && Setting.sequential_project_identifiers?
                    self.identifier = Project.next_identifier
                  end
                  if !initialized.key?('is_public')
                    self.is_public = Setting.default_projects_public?
                  end
                  if !initialized.key?('enabled_module_names')
                    self.enabled_module_names = Setting.default_projects_modules
                  end
                  if !initialized.key?('trackers') && !initialized.key?('tracker_ids')
                    default = Setting.default_projects_tracker_ids
                    if default.is_a?(Array)
                      self.trackers = Tracker.where(:id => default.map(&:to_i)).sorted.all
                    else
                      self.trackers = Tracker.sorted.all
                    end
                  end
                end
                def identifier=(identifier)
                  super unless identifier_frozen?
                end
                def identifier_frozen?
                  errors[:identifier].blank? && !(new_record? || identifier.blank?)
                end
                # returns latest created projects
                # non public projects will be returned only if user is a member of those
                def self.latest(user=nil, count=5)
                  visible(user).limit(count).order("created_on DESC").all
                end
                # Returns true if the project is visible to +user+ or to the current user.
                def visible?(user=User.current)
                  user.allowed_to?(:view_project, self)
                end
                # Returns a SQL conditions string used to find all projects visible by the specified user.
                #
                # Examples:
                #   Project.visible_condition(admin)        => "projects.status = 1"
                #   Project.visible_condition(normal_user)  => "((projects.status = 1) AND (projects.is_public = 1 OR projects.id IN (1,3,4)))"
                #   Project.visible_condition(anonymous)    => "((projects.status = 1) AND (projects.is_public = 1))"
                def self.visible_condition(user, options={})
                  allowed_to_condition(user, :view_project, options)
                end
                # Returns a SQL conditions string used to find all projects for which +user+ has the given +permission+
                #
                # Valid options:
                # * :project => limit the condition to project
                # * :with_subprojects => limit the condition to project and its subprojects
                # * :member => limit the condition to the user projects
                def self.allowed_to_condition(user, permission, options={})
                  perm = Redmine::AccessControl.permission(permission)
                  base_statement = (perm && perm.read? ? "#{Project.table_name}.status <> #{Project::STATUS_ARCHIVED}" : "#{Project.table_name}.status = #{Project::STATUS_ACTIVE}")
                  if perm && perm.project_module
                    # If the permission belongs to a project module, make sure the module is enabled
                    base_statement << " AND #{Project.table_name}.id IN (SELECT em.project_id FROM #{EnabledModule.table_name} em WHERE em.name='#{perm.project_module}')"
                  end
                  if options[:project]
                    project_statement = "#{Project.table_name}.id = #{options[:project].id}"
                    project_statement << " OR (#{Project.table_name}.lft > #{options[:project].lft} AND #{Project.table_name}.rgt < #{options[:project].rgt})" if options[:with_subprojects]
                    base_statement = "(#{project_statement}) AND (#{base_statement})"
                  end
                  if user.admin?
                    base_statement
                  else
                    statement_by_role = {}
                    unless options[:member]
                      role = user.logged? ? Role.non_member : Role.anonymous
                      if role.allowed_to?(permission)
                        statement_by_role[role] = "#{Project.table_name}.is_public = #{connection.quoted_true}"
                      end
                    end
                    if user.logged?
                      user.projects_by_role.each do |role, projects|
                        if role.allowed_to?(permission) && projects.any?
                          statement_by_role[role] = "#{Project.table_name}.id IN (#{projects.collect(&:id).join(',')})"
                        end
                      end
                    end
                    if statement_by_role.empty?
                      "1=0"
                    else
                      if block_given?
                        statement_by_role.each do |role, statement|
                          if s = yield(role, user)
                            statement_by_role[role] = "(#{statement} AND (#{s}))"
                          end
                        end
                      end
                      "((#{base_statement}) AND (#{statement_by_role.values.join(' OR ')}))"
                    end
                  end
                end
                # Returns the Systemwide and project specific activities
                def activities(include_inactive=false)
                  if include_inactive
                    return all_activities
                  else
                    return active_activities
                  end
                end
                # Will create a new Project specific Activity or update an existing one
                #
                # This will raise a ActiveRecord::Rollback if the TimeEntryActivity
                # does not successfully save.
                def update_or_create_time_entry_activity(id, activity_hash)
                  if activity_hash.respond_to?(:has_key?) && activity_hash.has_key?('parent_id')
                    self.create_time_entry_activity_if_needed(activity_hash)
                  else
                    activity = project.time_entry_activities.find_by_id(id.to_i)
                    activity.update_attributes(activity_hash) if activity
                  end
                end
                # Create a new TimeEntryActivity if it overrides a system TimeEntryActivity
                #
                # This will raise a ActiveRecord::Rollback if the TimeEntryActivity
                # does not successfully save.
                def create_time_entry_activity_if_needed(activity)
                  if activity['parent_id']
                    parent_activity = TimeEntryActivity.find(activity['parent_id'])
                    activity['name'] = parent_activity.name
                    activity['position'] = parent_activity.position
                    if Enumeration.overridding_change?(activity, parent_activity)
                      project_activity = self.time_entry_activities.create(activity)
                      if project_activity.new_record?
                        raise ActiveRecord::Rollback, "Overridding TimeEntryActivity was not successfully saved"
                      else
                        self.time_entries.update_all("activity_id = #{project_activity.id}", ["activity_id = ?", parent_activity.id])
                      end
                    end
                  end
                end
                # Returns a :conditions SQL string that can be used to find the issues associated with this project.
                #
                # Examples:
                #   project.project_condition(true)  => "(projects.id = 1 OR (projects.lft > 1 AND projects.rgt < 10))"
                #   project.project_condition(false) => "projects.id = 1"
                def project_condition(with_subprojects)
                  cond = "#{Project.table_name}.id = #{id}"
                  cond = "(#{cond} OR (#{Project.table_name}.lft > #{lft} AND #{Project.table_name}.rgt < #{rgt}))" if with_subprojects
                  cond
                end
                def self.find(*args)
                  if args.first && args.first.is_a?(String) && !args.first.match(/^\d*$/)
                    project = find_by_identifier(*args)
                    raise ActiveRecord::RecordNotFound, "Couldn't find Project with identifier=#{args.first}" if project.nil?
                    project
                  else
                    super
                  end
                end
                def self.find_by_param(*args)
                  self.find(*args)
                end
+               alias :base_reload :reload
                def reload(*args)
                  @shared_versions = nil
                  @rolled_up_versions = nil
                  @rolled_up_trackers = nil
                  @all_issue_custom_fields = nil
                  @all_time_entry_custom_fields = nil
                  @to_param = nil
                  @allowed_parents = nil
                  @allowed_permissions = nil
                  @actions_allowed = nil
                  @start_date = nil
                  @due_date = nil
-                 super
+                 base_reload(*args)
                end
                def to_param
                  # id is used for projects with a numeric identifier (compatibility)
                  @to_param ||= (identifier.to_s =~ %r{^\d*$} ? id.to_s : identifier)
                end
                def active?
                  self.status == STATUS_ACTIVE
                end
                def archived?
                  self.status == STATUS_ARCHIVED
                end
                # Archives the project and its descendants
                def archive
                  # Check that there is no issue of a non descendant project that is assigned
                  # to one of the project or descendant versions
                  v_ids = self_and_descendants.collect {|p| p.version_ids}.flatten
                  if v_ids.any? &&
                    Issue.
                      includes(:project).
                      where("#{Project.table_name}.lft < ? OR #{Project.table_name}.rgt > ?", lft, rgt).
                      where("#{Issue.table_name}.fixed_version_id IN (?)", v_ids).
                      exists?
                    return false
                  end
                  Project.transaction do
                    archive!
                  end
                  true
                end
                # Unarchives the project
                # All its ancestors must be active
                def unarchive
                  return false if ancestors.detect {|a| !a.active?}
                  update_attribute :status, STATUS_ACTIVE
                end
                def close
                  self_and_descendants.status(STATUS_ACTIVE).update_all :status => STATUS_CLOSED
                end
                def reopen
                  self_and_descendants.status(STATUS_CLOSED).update_all :status => STATUS_ACTIVE
                end
                # Returns an array of projects the project can be moved to
                # by the current user
                def allowed_parents
                  return @allowed_parents if @allowed_parents
                  @allowed_parents = Project.where(Project.allowed_to_condition(User.current, :add_subprojects)).all
                  @allowed_parents = @allowed_parents - self_and_descendants
                  if User.current.allowed_to?(:add_project, nil, :global => true) || (!new_record? && parent.nil?)
                    @allowed_parents << nil
                  end
                  unless parent.nil? || @allowed_parents.empty? || @allowed_parents.include?(parent)
                    @allowed_parents << parent
                  end
                  @allowed_parents
                end
                # Sets the parent of the project with authorization check
                def set_allowed_parent!(p)
                  unless p.nil? || p.is_a?(Project)
                    if p.to_s.blank?
                      p = nil
                    else
                      p = Project.find_by_id(p)
                      return false unless p
                    end
                  end
                  if p.nil?
                    if !new_record? && allowed_parents.empty?
                      return false
                    end
                  elsif !allowed_parents.include?(p)
                    return false
                  end
                  set_parent!(p)
                end
                # Sets the parent of the project
                # Argument can be either a Project, a String, a Fixnum or nil
                def set_parent!(p)
                  unless p.nil? || p.is_a?(Project)
                    if p.to_s.blank?
                      p = nil
                    else
                      p = Project.find_by_id(p)
                      return false unless p
                    end
                  end
                  if p == parent && !p.nil?
                    # Nothing to do
                    true
                  elsif p.nil? || (p.active? && move_possible?(p))
                    set_or_update_position_under(p)
                    Issue.update_versions_from_hierarchy_change(self)
                    true
                  else
                    # Can not move to the given target
                    false
                  end
                end
                # Recalculates all lft and rgt values based on project names
                # Unlike Project.rebuild!, these values are recalculated even if the tree "looks" valid
                # Used in BuildProjectsTree migration
                def self.rebuild_tree!
                  transaction do
                    update_all "lft = NULL, rgt = NULL"
                    rebuild!(false)
                  end
                end
                # Returns an array of the trackers used by the project and its active sub projects
                def rolled_up_trackers
                  @rolled_up_trackers ||=
                    Tracker.
                      joins(:projects).
                      joins("JOIN #{EnabledModule.table_name} ON #{EnabledModule.table_name}.project_id = #{Project.table_name}.id AND #{EnabledModule.table_name}.name = 'issue_tracking'").
                      select("DISTINCT #{Tracker.table_name}.*").
                      where("#{Project.table_name}.lft >= ? AND #{Project.table_name}.rgt <= ? AND #{Project.table_name}.status <> #{STATUS_ARCHIVED}", lft, rgt).
                      sorted.
                      all
                end
                # Closes open and locked project versions that are completed
                def close_completed_versions
                  Version.transaction do
                    versions.where(:status => %w(open locked)).all.each do |version|
                      if version.completed?
                        version.update_attribute(:status, 'closed')
                      end
                    end
                  end
                end
                # Returns a scope of the Versions on subprojects
                def rolled_up_versions
                  @rolled_up_versions ||=
                    Version.scoped(:include => :project,
                                   :conditions => ["#{Project.table_name}.lft >= ? AND #{Project.table_name}.rgt <= ? AND #{Project.table_name}.status <> #{STATUS_ARCHIVED}", lft, rgt])
                end
                # Returns a scope of the Versions used by the project
                def shared_versions
                  if new_record?
                    Version.scoped(:include => :project,
                                   :conditions => "#{Project.table_name}.status <> #{Project::STATUS_ARCHIVED} AND #{Version.table_name}.sharing = 'system'")
                  else
                    @shared_versions ||= begin
                      r = root? ? self : root
                      Version.scoped(:include => :project,
                                     :conditions => "#{Project.table_name}.id = #{id}" +
                                                    " OR (#{Project.table_name}.status <> #{Project::STATUS_ARCHIVED} AND (" +
                                                        " #{Version.table_name}.sharing = 'system'" +
                                                        " OR (#{Project.table_name}.lft >= #{r.lft} AND #{Project.table_name}.rgt <= #{r.rgt} AND #{Version.table_name}.sharing = 'tree')" +
                                                        " OR (#{Project.table_name}.lft < #{lft} AND #{Project.table_name}.rgt > #{rgt} AND #{Version.table_name}.sharing IN ('hierarchy', 'descendants'))" +
                                                        " OR (#{Project.table_name}.lft > #{lft} AND #{Project.table_name}.rgt < #{rgt} AND #{Version.table_name}.sharing = 'hierarchy')" +
                                                        "))")
                    end
                  end
                end
                # Returns a hash of project users grouped by role
                def users_by_role
                  members.includes(:user, :roles).all.inject({}) do |h, m|
                    m.roles.each do |r|
                      h[r] ||= []
                      h[r] << m.user
                    end
                    h
                  end
                end
                # Deletes all project's members
                def delete_all_members
                  me, mr = Member.table_name, MemberRole.table_name
                  connection.delete("DELETE FROM #{mr} WHERE #{mr}.member_id IN (SELECT #{me}.id FROM #{me} WHERE #{me}.project_id = #{id})")
                  Member.delete_all(['project_id = ?', id])
                end
                # Users/groups issues can be assigned to
                def assignable_users
                  assignable = Setting.issue_group_assignment? ? member_principals : members
                  assignable.select {|m| m.roles.detect {|role| role.assignable?}}.collect {|m| m.principal}.sort
                end
                # Returns the mail adresses of users that should be always notified on project events
                def recipients
                  notified_users.collect {|user| user.mail}
                end
                # Returns the users that should be notified on project events
                def notified_users
                  # TODO: User part should be extracted to User#notify_about?
                  members.select {|m| m.principal.present? && (m.mail_notification? || m.principal.mail_notification == 'all')}.collect {|m| m.principal}
                end
                # Returns an array of all custom fields enabled for project issues
                # (explictly associated custom fields and custom fields enabled for all projects)
                def all_issue_custom_fields
                  @all_issue_custom_fields ||= (IssueCustomField.for_all + issue_custom_fields).uniq.sort
                end
                # Returns an array of all custom fields enabled for project time entries
                # (explictly associated custom fields and custom fields enabled for all projects)
                def all_time_entry_custom_fields
                  @all_time_entry_custom_fields ||= (TimeEntryCustomField.for_all + time_entry_custom_fields).uniq.sort
                end
                def project
                  self
                end
                def <=>(project)
                  name.downcase <=> project.name.downcase
                end
                def to_s
                  name
                end
                # Returns a short description of the projects (first lines)
                def short_description(length = 255)
                  description.gsub(/^(.{#{length}}[^\n\r]*).*$/m, '\1...').strip if description
                end
                def css_classes
                  s = 'project'
                  s << ' root' if root?
                  s << ' child' if child?
                  s << (leaf? ? ' leaf' : ' parent')
                  unless active?
                    if archived?
                      s << ' archived'
                    else
                      s << ' closed'
                    end
                  end
                  s
                end
                # The earliest start date of a project, based on it's issues and versions
                def start_date
                  @start_date ||= [
                   issues.minimum('start_date'),
                   shared_versions.minimum('effective_date'),
                   Issue.fixed_version(shared_versions).minimum('start_date')
                  ].compact.min
                end
                # The latest due date of an issue or version
                def due_date
                  @due_date ||= [
                   issues.maximum('due_date'),
                   shared_versions.maximum('effective_date'),
                   Issue.fixed_version(shared_versions).maximum('due_date')
                  ].compact.max
                end
                def overdue?
                  active? && !due_date.nil? && (due_date < Date.today)
                end
                # Returns the percent completed for this project, based on the
                # progress on it's versions.
                def completed_percent(options={:include_subprojects => false})
                  if options.delete(:include_subprojects)
                    total = self_and_descendants.collect(&:completed_percent).sum
                    total / self_and_descendants.count
                  else
                    if versions.count > 0
                      total = versions.collect(&:completed_percent).sum
                      total / versions.count
                    else
 
                    end
                  end
                end
                # Return true if this project allows to do the specified action.
                # action can be:
                # * a parameter-like Hash (eg. :controller => 'projects', :action => 'edit')
                # * a permission Symbol (eg. :edit_project)
                def allows_to?(action)
                  if archived?
                    # No action allowed on archived projects
                    return false
                  end
                  unless active? || Redmine::AccessControl.read_action?(action)
                    # No write action allowed on closed projects
                    return false
                  end
                  # No action allowed on disabled modules
                  if action.is_a? Hash
                    allowed_actions.include? "#{action[:controller]}/#{action[:action]}"
                  else
                    allowed_permissions.include? action
                  end
                end
                def module_enabled?(module_name)
                  module_name = module_name.to_s
                  enabled_modules.detect {|m| m.name == module_name}
                end
                def enabled_module_names=(module_names)
                  if module_names && module_names.is_a?(Array)
                    module_names = module_names.collect(&:to_s).reject(&:blank?)
                    self.enabled_modules = module_names.collect {|name| enabled_modules.detect {|mod| mod.name == name} || EnabledModule.new(:name => name)}
                  else
                    enabled_modules.clear
                  end
                end
                # Returns an array of the enabled modules names
                def enabled_module_names
                  enabled_modules.collect(&:name)
                end
                # Enable a specific module
                #
                # Examples:
                #   project.enable_module!(:issue_tracking)
                #   project.enable_module!("issue_tracking")
                def enable_module!(name)
                  enabled_modules << EnabledModule.new(:name => name.to_s) unless module_enabled?(name)
                end
                # Disable a module if it exists
                #
                # Examples:
                #   project.disable_module!(:issue_tracking)
                #   project.disable_module!("issue_tracking")
                #   project.disable_module!(project.enabled_modules.first)
                def disable_module!(target)
                  target = enabled_modules.detect{|mod| target.to_s == mod.name} unless enabled_modules.include?(target)
                  target.destroy unless target.blank?
                end
                safe_attributes 'name',
                  'description',
                  'homepage',
                  'is_public',
                  'identifier',
                  'custom_field_values',
                  'custom_fields',
                  'tracker_ids',
                  'issue_custom_field_ids'
                safe_attributes 'enabled_module_names',
                  :if => lambda {|project, user| project.new_record? || user.allowed_to?(:select_project_modules, project) }
                safe_attributes 'inherit_members',
                  :if => lambda {|project, user| project.parent.nil? || project.parent.visible?(user)}
                # Returns an array of projects that are in this project's hierarchy
                #
                # Example: parents, children, siblings
                def hierarchy
                  parents = project.self_and_ancestors || []
                  descendants = project.descendants || []
                  project_hierarchy = parents | descendants # Set union
                end
                # Returns an auto-generated project identifier based on the last identifier used
                def self.next_identifier
                  p = Project.order('created_on DESC').first
                  p.nil? ? nil : p.identifier.to_s.succ
                end
                # Copies and saves the Project instance based on the +project+.
                # Duplicates the source project's:
                # * Wiki
                # * Versions
                # * Categories
                # * Issues
                # * Members
                # * Queries
                #
                # Accepts an +options+ argument to specify what to copy
                #
                # Examples:
                #   project.copy(1)                                    # => copies everything
                #   project.copy(1, :only => 'members')                # => copies members only
                #   project.copy(1, :only => ['members', 'versions'])  # => copies members and versions
                def copy(project, options={})
                  project = project.is_a?(Project) ? project : Project.find(project)
                  to_be_copied = %w(wiki versions issue_categories issues members queries boards)
                  to_be_copied = to_be_copied & options[:only].to_a unless options[:only].nil?
                  Project.transaction do
                    if save
                      reload
                      to_be_copied.each do |name|
                        send "copy_#{name}", project
                      end
                      Redmine::Hook.call_hook(:model_project_copy_before_save, :source_project => project, :destination_project => self)
                      save
                    end
                  end
                end
                # Returns a new unsaved Project instance with attributes copied from +project+
                def self.copy_from(project)
                  project = project.is_a?(Project) ? project : Project.find(project)
                  # clear unique attributes
                  attributes = project.attributes.dup.except('id', 'name', 'identifier', 'status', 'parent_id', 'lft', 'rgt')
                  copy = Project.new(attributes)
                  copy.enabled_modules = project.enabled_modules
                  copy.trackers = project.trackers
                  copy.custom_values = project.custom_values.collect {|v| v.clone}
                  copy.issue_custom_fields = project.issue_custom_fields
                  copy
                end
                # Yields the given block for each project with its level in the tree
                def self.project_tree(projects, &block)
                  ancestors = []
                  projects.sort_by(&:lft).each do |project|
                    while (ancestors.any? && !project.is_descendant_of?(ancestors.last))
                      ancestors.pop
                    end
                    yield project, ancestors.size
                    ancestors << project
                  end
                end
                private
                def after_parent_changed(parent_was)
                  remove_inherited_member_roles
                  add_inherited_member_roles
                end
                def update_inherited_members
                  if parent
                    if inherit_members? && !inherit_members_was
                      remove_inherited_member_roles
                      add_inherited_member_roles
                    elsif !inherit_members? && inherit_members_was
                      remove_inherited_member_roles
                    end
                  end
                end
                def remove_inherited_member_roles
                  member_roles = memberships.map(&:member_roles).flatten
                  member_role_ids = member_roles.map(&:id)
                  member_roles.each do |member_role|
                    if member_role.inherited_from && !member_role_ids.include?(member_role.inherited_from)
                      member_role.destroy
                    end
                  end
                end
                def add_inherited_member_roles
                  if inherit_members? && parent
                    parent.memberships.each do |parent_member|
                      member = Member.find_or_new(self.id, parent_member.user_id)
                      parent_member.member_roles.each do |parent_member_role|
                        member.member_roles << MemberRole.new(:role => parent_member_role.role, :inherited_from => parent_member_role.id)
                      end
                      member.save!
                    end
                  end
                end
                # Copies wiki from +project+
                def copy_wiki(project)
                  # Check that the source project has a wiki first
                  unless project.wiki.nil?
                    wiki = self.wiki || Wiki.new
                    wiki.attributes = project.wiki.attributes.dup.except("id", "project_id")
                    wiki_pages_map = {}
                    project.wiki.pages.each do |page|
                      # Skip pages without content
                      next if page.content.nil?
                      new_wiki_content = WikiContent.new(page.content.attributes.dup.except("id", "page_id", "updated_on"))
                      new_wiki_page = WikiPage.new(page.attributes.dup.except("id", "wiki_id", "created_on", "parent_id"))
                      new_wiki_page.content = new_wiki_content
                      wiki.pages << new_wiki_page
                      wiki_pages_map[page.id] = new_wiki_page
                    end
                    self.wiki = wiki
                    wiki.save
                    # Reproduce page hierarchy
                    project.wiki.pages.each do |page|
                      if page.parent_id && wiki_pages_map[page.id]
                        wiki_pages_map[page.id].parent = wiki_pages_map[page.parent_id]
                        wiki_pages_map[page.id].save
                      end
                    end
                  end
                end
                # Copies versions from +project+
                def copy_versions(project)
                  project.versions.each do |version|
                    new_version = Version.new
                    new_version.attributes = version.attributes.dup.except("id", "project_id", "created_on", "updated_on")
                    self.versions << new_version
                  end
                end
                # Copies issue categories from +project+
                def copy_issue_categories(project)
                  project.issue_categories.each do |issue_category|
                    new_issue_category = IssueCategory.new
                    new_issue_category.attributes = issue_category.attributes.dup.except("id", "project_id")
                    self.issue_categories << new_issue_category
                  end
                end
                # Copies issues from +project+
                def copy_issues(project)
                  # Stores the source issue id as a key and the copied issues as the
                  # value.  Used to map the two togeather for issue relations.
                  issues_map = {}
                  # Store status and reopen locked/closed versions
                  version_statuses = versions.reject(&:open?).map {|version| [version, version.status]}
                  version_statuses.each do |version, status|
                    version.update_attribute :status, 'open'
                  end
                  # Get issues sorted by root_id, lft so that parent issues
                  # get copied before their children
                  project.issues.reorder('root_id, lft').all.each do |issue|
                    new_issue = Issue.new
                    new_issue.copy_from(issue, :subtasks => false, :link => false)
                    new_issue.project = self
                    # Reassign fixed_versions by name, since names are unique per project
                    if issue.fixed_version && issue.fixed_version.project == project
                      new_issue.fixed_version = self.versions.detect {|v| v.name == issue.fixed_version.name}
                    end
                    # Reassign the category by name, since names are unique per project
                    if issue.category
                      new_issue.category = self.issue_categories.detect {|c| c.name == issue.category.name}
                    end
                    # Parent issue
                    if issue.parent_id
                      if copied_parent = issues_map[issue.parent_id]
                        new_issue.parent_issue_id = copied_parent.id
                      end
                    end
                    self.issues << new_issue
                    if new_issue.new_record?
                      logger.info "Project#copy_issues: issue ##{issue.id} could not be copied: #{new_issue.errors.full_messages}" if logger && logger.info
                    else
                      issues_map[issue.id] = new_issue unless new_issue.new_record?
                    end
                  end
                  # Restore locked/closed version statuses
                  version_statuses.each do |version, status|
                    version.update_attribute :status, status
                  end
                  # Relations after in case issues related each other
                  project.issues.each do |issue|
                    new_issue = issues_map[issue.id]
                    unless new_issue
                      # Issue was not copied
                      next
                    end
                    # Relations
                    issue.relations_from.each do |source_relation|
                      new_issue_relation = IssueRelation.new
                      new_issue_relation.attributes = source_relation.attributes.dup.except("id", "issue_from_id", "issue_to_id")
                      new_issue_relation.issue_to = issues_map[source_relation.issue_to_id]
                      if new_issue_relation.issue_to.nil? && Setting.cross_project_issue_relations?
                        new_issue_relation.issue_to = source_relation.issue_to
                      end
                      new_issue.relations_from << new_issue_relation
                    end
                    issue.relations_to.each do |source_relation|
                      new_issue_relation = IssueRelation.new
                      new_issue_relation.attributes = source_relation.attributes.dup.except("id", "issue_from_id", "issue_to_id")
                      new_issue_relation.issue_from = issues_map[source_relation.issue_from_id]
                      if new_issue_relation.issue_from.nil? && Setting.cross_project_issue_relations?
                        new_issue_relation.issue_from = source_relation.issue_from
                      end
                      new_issue.relations_to << new_issue_relation
                    end
                  end
                end
                # Copies members from +project+
                def copy_members(project)
                  # Copy users first, then groups to handle members with inherited and given roles
                  members_to_copy = []
                  members_to_copy += project.memberships.select {|m| m.principal.is_a?(User)}
                  members_to_copy += project.memberships.select {|m| !m.principal.is_a?(User)}
                  members_to_copy.each do |member|
                    new_member = Member.new
                    new_member.attributes = member.attributes.dup.except("id", "project_id", "created_on")
                    # only copy non inherited roles
                    # inherited roles will be added when copying the group membership
                    role_ids = member.member_roles.reject(&:inherited?).collect(&:role_id)
                    next if role_ids.empty?
                    new_member.role_ids = role_ids
                    new_member.project = self
                    self.members << new_member
                  end
                end
                # Copies queries from +project+
                def copy_queries(project)
                  project.queries.each do |query|
                    new_query = IssueQuery.new
                    new_query.attributes = query.attributes.dup.except("id", "project_id", "sort_criteria")
                    new_query.sort_criteria = query.sort_criteria if query.sort_criteria
                    new_query.project = self
                    new_query.user_id = query.user_id
                    self.queries << new_query
                  end
                end
                # Copies boards from +project+
                def copy_boards(project)
                  project.boards.each do |board|
                    new_board = Board.new
                    new_board.attributes = board.attributes.dup.except("id", "project_id", "topics_count", "messages_count", "last_message_id")
                    new_board.project = self
                    self.boards << new_board
                  end
                end
                def allowed_permissions
                  @allowed_permissions ||= begin
                    module_names = enabled_modules.all(:select => :name).collect {|m| m.name}
                    Redmine::AccessControl.modules_permissions(module_names).collect {|p| p.name}
                  end
                end
                def allowed_actions
                  @actions_allowed ||= allowed_permissions.inject([]) { |actions, permission| actions += Redmine::AccessControl.allowed_actions(permission) }.flatten
                end
                # Returns all the active Systemwide and project specific activities
                def active_activities
                  overridden_activity_ids = self.time_entry_activities.collect(&:parent_id)
                  if overridden_activity_ids.empty?
                    return TimeEntryActivity.shared.active
                  else
                    return system_activities_and_project_overrides
                  end
                end
                # Returns all the Systemwide and project specific activities
                # (inactive and active)
                def all_activities
                  overridden_activity_ids = self.time_entry_activities.collect(&:parent_id)
                  if overridden_activity_ids.empty?
                    return TimeEntryActivity.shared
                  else
                    return system_activities_and_project_overrides(true)
                  end
                end
                # Returns the systemwide active activities merged with the project specific overrides
                def system_activities_and_project_overrides(include_inactive=false)
                  if include_inactive
                    return TimeEntryActivity.shared.
                      where("id NOT IN (?)", self.time_entry_activities.collect(&:parent_id)).all +
                      self.time_entry_activities
                  else
                    return TimeEntryActivity.shared.active.
                      where("id NOT IN (?)", self.time_entry_activities.collect(&:parent_id)).all +
                      self.time_entry_activities.active
                  end
                end
                # Archives subprojects recursively
                def archive!
                  children.each do |subproject|
                    subproject.send :archive!
                  end
                  update_attribute :status, STATUS_ARCHIVED
                end
                def update_position_under_parent
                  set_or_update_position_under(parent)
                end
                # Inserts/moves the project so that target's children or root projects stay alphabetically sorted
                def set_or_update_position_under(target_parent)
                  parent_was = parent
                  sibs = (target_parent.nil? ? self.class.roots : target_parent.children)
                  to_be_inserted_before = sibs.sort_by {|c| c.name.to_s.downcase}.detect {|c| c.name.to_s.downcase > name.to_s.downcase }
                  if to_be_inserted_before
                    move_to_left_of(to_be_inserted_before)
                  elsif target_parent.nil?
                    if sibs.empty?
                      # move_to_root adds the project in first (ie. left) position
                      move_to_root
                    else
                      move_to_right_of(sibs.last) unless self == sibs.last
                    end
                  else
                    # move_to_child_of adds the project in last (ie.right) position
                    move_to_child_of(target_parent)
                  end
                  if parent_was != target_parent
                    after_parent_changed(parent_was)
                  end
                end
              end

app/models/user.rb +2 -1

              # Redmine - project management software
              # Copyright (C) 2006-2013  Jean-Philippe Lang
              #
              # This program is free software; you can redistribute it and/or
              # modify it under the terms of the GNU General Public License
              # as published by the Free Software Foundation; either version 2
              # of the License, or (at your option) any later version.
              #
              # This program is distributed in the hope that it will be useful,
              # but WITHOUT ANY WARRANTY; without even the implied warranty of
              # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
              # GNU General Public License for more details.
              #
              # You should have received a copy of the GNU General Public License
              # along with this program; if not, write to the Free Software
              # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
              require "digest/sha1"
              class User < Principal
                include Redmine::SafeAttributes
                # Different ways of displaying/sorting users
                USER_FORMATS = {
                  :firstname_lastname => {
                      :string => '#{firstname} #{lastname}',
                      :order => %w(firstname lastname id),
                      :setting_order => 1
                    },
                  :firstname_lastinitial => {
                      :string => '#{firstname} #{lastname.to_s.chars.first}.',
                      :order => %w(firstname lastname id),
                      :setting_order => 2
                    },
                  :firstname => {
                      :string => '#{firstname}',
                      :order => %w(firstname id),
                      :setting_order => 3
                    },
                  :lastname_firstname => {
                      :string => '#{lastname} #{firstname}',
                      :order => %w(lastname firstname id),
                      :setting_order => 4
                    },
                  :lastname_coma_firstname => {
                      :string => '#{lastname}, #{firstname}',
                      :order => %w(lastname firstname id),
                      :setting_order => 5
                    },
                  :lastname => {
                      :string => '#{lastname}',
                      :order => %w(lastname id),
                      :setting_order => 6
                    },
                  :username => {
                      :string => '#{login}',
                      :order => %w(login id),
                      :setting_order => 7
                    },
                }
                MAIL_NOTIFICATION_OPTIONS = [
                  ['all', :label_user_mail_option_all],
                  ['selected', :label_user_mail_option_selected],
                  ['only_my_events', :label_user_mail_option_only_my_events],
                  ['only_assigned', :label_user_mail_option_only_assigned],
                  ['only_owner', :label_user_mail_option_only_owner],
                  ['none', :label_user_mail_option_none]
                ]
                has_and_belongs_to_many :groups, :after_add => Proc.new {|user, group| group.user_added(user)},
                                                 :after_remove => Proc.new {|user, group| group.user_removed(user)}
                has_many :changesets, :dependent => :nullify
                has_one :preference, :dependent => :destroy, :class_name => 'UserPreference'
                has_one :rss_token, :class_name => 'Token', :conditions => "action='feeds'"
                has_one :api_token, :class_name => 'Token', :conditions => "action='api'"
                belongs_to :auth_source
                scope :logged, lambda { where("#{User.table_name}.status <> #{STATUS_ANONYMOUS}") }
                scope :status, lambda {|arg| where(arg.blank? ? nil : {:status => arg.to_i}) }
                acts_as_customizable
                attr_accessor :password, :password_confirmation
                attr_accessor :last_before_login_on
                # Prevents unauthorized assignments
                attr_protected :login, :admin, :password, :password_confirmation, :hashed_password
                LOGIN_LENGTH_LIMIT = 60
                MAIL_LENGTH_LIMIT = 60
                validates_presence_of :login, :firstname, :lastname, :mail, :if => Proc.new { |user| !user.is_a?(AnonymousUser) }
                validates_uniqueness_of :login, :if => Proc.new { |user| user.login_changed? && user.login.present? }, :case_sensitive => false
                validates_uniqueness_of :mail, :if => Proc.new { |user| user.mail_changed? && user.mail.present? }, :case_sensitive => false
                # Login must contain letters, numbers, underscores only
                validates_format_of :login, :with => /\A[a-z0-9_\-@\.]*\z/i
                validates_length_of :login, :maximum => LOGIN_LENGTH_LIMIT
                validates_length_of :firstname, :lastname, :maximum => 30
                validates_format_of :mail, :with => /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\z/i, :allow_blank => true
                validates_length_of :mail, :maximum => MAIL_LENGTH_LIMIT, :allow_nil => true
                validates_confirmation_of :password, :allow_nil => true
                validates_inclusion_of :mail_notification, :in => MAIL_NOTIFICATION_OPTIONS.collect(&:first), :allow_blank => true
                validate :validate_password_length
                before_create :set_mail_notification
                before_save   :update_hashed_password
                before_destroy :remove_references_before_destroy
                scope :in_group, lambda {|group|
                  group_id = group.is_a?(Group) ? group.id : group.to_i
                  where("#{User.table_name}.id IN (SELECT gu.user_id FROM #{table_name_prefix}groups_users#{table_name_suffix} gu WHERE gu.group_id = ?)", group_id)
                }
                scope :not_in_group, lambda {|group|
                  group_id = group.is_a?(Group) ? group.id : group.to_i
                  where("#{User.table_name}.id NOT IN (SELECT gu.user_id FROM #{table_name_prefix}groups_users#{table_name_suffix} gu WHERE gu.group_id = ?)", group_id)
                }
                scope :sorted, lambda { order(*User.fields_for_order_statement)}
                def set_mail_notification
                  self.mail_notification = Setting.default_notification_option if self.mail_notification.blank?
                  true
                end
                def update_hashed_password
                  # update hashed_password if password was set
                  if self.password && self.auth_source_id.blank?
                    salt_password(password)
                  end
                end
+               alias :base_reload :reload
                def reload(*args)
                  @name = nil
                  @projects_by_role = nil
                  @membership_by_project_id = nil
-                 super
+                 base_reload(*args)
                end
                def mail=(arg)
                  write_attribute(:mail, arg.to_s.strip)
                end
                def identity_url=(url)
                  if url.blank?
                    write_attribute(:identity_url, '')
                  else
                    begin
                      write_attribute(:identity_url, OpenIdAuthentication.normalize_identifier(url))
                    rescue OpenIdAuthentication::InvalidOpenId
                      # Invalid url, don't save
                    end
                  end
                  self.read_attribute(:identity_url)
                end
                # Returns the user that matches provided login and password, or nil
                def self.try_to_login(login, password)
                  login = login.to_s
                  password = password.to_s
                  # Make sure no one can sign in with an empty login or password
                  return nil if login.empty? || password.empty?
                  user = find_by_login(login)
                  if user
                    # user is already in local database
                    return nil unless user.active?
                    return nil unless user.check_password?(password)
                  else
                    # user is not yet registered, try to authenticate with available sources
                    attrs = AuthSource.authenticate(login, password)
                    if attrs
                      user = new(attrs)
                      user.login = login
                      user.language = Setting.default_language
                      if user.save
                        user.reload
                        logger.info("User '#{user.login}' created from external auth source: #{user.auth_source.type} - #{user.auth_source.name}") if logger && user.auth_source
                      end
                    end
                  end
                  user.update_column(:last_login_on, Time.now) if user && !user.new_record?
                  user
                rescue => text
                  raise text
                end
                # Returns the user who matches the given autologin +key+ or nil
                def self.try_to_autologin(key)
                  user = Token.find_active_user('autologin', key, Setting.autologin.to_i)
                  if user
                    user.update_column(:last_login_on, Time.now)
                    user
                  end
                end
                def self.name_formatter(formatter = nil)
                  USER_FORMATS[formatter || Setting.user_format] || USER_FORMATS[:firstname_lastname]
                end
                # Returns an array of fields names than can be used to make an order statement for users
                # according to how user names are displayed
                # Examples:
                #
                #   User.fields_for_order_statement              => ['users.login', 'users.id']
                #   User.fields_for_order_statement('authors')   => ['authors.login', 'authors.id']
                def self.fields_for_order_statement(table=nil)
                  table ||= table_name
                  name_formatter[:order].map {|field| "#{table}.#{field}"}
                end
                # Return user's full name for display
                def name(formatter = nil)
                  f = self.class.name_formatter(formatter)
                  if formatter
                    eval('"' + f[:string] + '"')
                  else
                    @name ||= eval('"' + f[:string] + '"')
                  end
                end
                def active?
                  self.status == STATUS_ACTIVE
                end
                def registered?
                  self.status == STATUS_REGISTERED
                end
                def locked?
                  self.status == STATUS_LOCKED
                end
                def activate
                  self.status = STATUS_ACTIVE
                end
                def register
                  self.status = STATUS_REGISTERED
                end
                def lock
                  self.status = STATUS_LOCKED
                end
                def activate!
                  update_attribute(:status, STATUS_ACTIVE)
                end
                def register!
                  update_attribute(:status, STATUS_REGISTERED)
                end
                def lock!
                  update_attribute(:status, STATUS_LOCKED)
                end
                # Returns true if +clear_password+ is the correct user's password, otherwise false
                def check_password?(clear_password)
                  if auth_source_id.present?
                    auth_source.authenticate(self.login, clear_password)
                  else
                    User.hash_password("#{salt}#{User.hash_password clear_password}") == hashed_password
                  end
                end
                # Generates a random salt and computes hashed_password for +clear_password+
                # The hashed password is stored in the following form: SHA1(salt + SHA1(password))
                def salt_password(clear_password)
                  self.salt = User.generate_salt
                  self.hashed_password = User.hash_password("#{salt}#{User.hash_password clear_password}")
                end
                # Does the backend storage allow this user to change their password?
                def change_password_allowed?
                  return true if auth_source.nil?
                  return auth_source.allow_password_changes?
                end
                # Generate and set a random password.  Useful for automated user creation
                # Based on Token#generate_token_value
                #
                def random_password
                  chars = ("a".."z").to_a + ("A".."Z").to_a + ("0".."9").to_a
                  password = ''
 .times { |i| password << chars[rand(chars.size-1)] }
                  self.password = password
                  self.password_confirmation = password
                  self
                end
                def pref
                  self.preference ||= UserPreference.new(:user => self)
                end
                def time_zone
                  @time_zone ||= (self.pref.time_zone.blank? ? nil : ActiveSupport::TimeZone[self.pref.time_zone])
                end
                def wants_comments_in_reverse_order?
                  self.pref[:comments_sorting] == 'desc'
                end
                # Return user's RSS key (a 40 chars long string), used to access feeds
                def rss_key
                  if rss_token.nil?
                    create_rss_token(:action => 'feeds')
                  end
                  rss_token.value
                end
                # Return user's API key (a 40 chars long string), used to access the API
                def api_key
                  if api_token.nil?
                    create_api_token(:action => 'api')
                  end
                  api_token.value
                end
                # Return an array of project ids for which the user has explicitly turned mail notifications on
                def notified_projects_ids
                  @notified_projects_ids ||= memberships.select {|m| m.mail_notification?}.collect(&:project_id)
                end
                def notified_project_ids=(ids)
                  Member.update_all("mail_notification = #{connection.quoted_false}", ['user_id = ?', id])
                  Member.update_all("mail_notification = #{connection.quoted_true}", ['user_id = ? AND project_id IN (?)', id, ids]) if ids && !ids.empty?
                  @notified_projects_ids = nil
                  notified_projects_ids
                end
                def valid_notification_options
                  self.class.valid_notification_options(self)
                end
                # Only users that belong to more than 1 project can select projects for which they are notified
                def self.valid_notification_options(user=nil)
                  # Note that @user.membership.size would fail since AR ignores
                  # :include association option when doing a count
                  if user.nil? || user.memberships.length < 1
                    MAIL_NOTIFICATION_OPTIONS.reject {|option| option.first == 'selected'}
                  else
                    MAIL_NOTIFICATION_OPTIONS
                  end
                end
                # Find a user account by matching the exact login and then a case-insensitive
                # version.  Exact matches will be given priority.
                def self.find_by_login(login)
                  if login.present?
                    login = login.to_s
                    # First look for an exact match
                    user = where(:login => login).all.detect {|u| u.login == login}
                    unless user
                      # Fail over to case-insensitive if none was found
                      user = where("LOWER(login) = ?", login.downcase).first
                    end
                    user
                  end
                end
                def self.find_by_rss_key(key)
                  Token.find_active_user('feeds', key)
                end
                def self.find_by_api_key(key)
                  Token.find_active_user('api', key)
                end
                # Makes find_by_mail case-insensitive
                def self.find_by_mail(mail)
                  where("LOWER(mail) = ?", mail.to_s.downcase).first
                end
                # Returns true if the default admin account can no longer be used
                def self.default_admin_account_changed?
                  !User.active.find_by_login("admin").try(:check_password?, "admin")
                end
                def to_s
                  name
                end
                CSS_CLASS_BY_STATUS = {
                  STATUS_ANONYMOUS  => 'anon',
                  STATUS_ACTIVE     => 'active',
                  STATUS_REGISTERED => 'registered',
                  STATUS_LOCKED     => 'locked'
                }
                def css_classes
                  "user #{CSS_CLASS_BY_STATUS[status]}"
                end
                # Returns the current day according to user's time zone
                def today
                  if time_zone.nil?
                    Date.today
                  else
                    Time.now.in_time_zone(time_zone).to_date
                  end
                end
                # Returns the day of +time+ according to user's time zone
                def time_to_date(time)
                  if time_zone.nil?
                    time.to_date
                  else
                    time.in_time_zone(time_zone).to_date
                  end
                end
                def logged?
                  true
                end
                def anonymous?
                  !logged?
                end
                # Returns user's membership for the given project
                # or nil if the user is not a member of project
                def membership(project)
                  project_id = project.is_a?(Project) ? project.id : project
                  @membership_by_project_id ||= Hash.new {|h, project_id|
                    h[project_id] = memberships.where(:project_id => project_id).first
                  }
                  @membership_by_project_id[project_id]
                end
                # Return user's roles for project
                def roles_for_project(project)
                  roles = []
                  # No role on archived projects
                  return roles if project.nil? || project.archived?
                  if logged?
                    # Find project membership
                    membership = membership(project)
                    if membership
                      roles = membership.roles
                    else
                      @role_non_member ||= Role.non_member
                      roles << @role_non_member
                    end
                  else
                    @role_anonymous ||= Role.anonymous
                    roles << @role_anonymous
                  end
                  roles
                end
                # Return true if the user is a member of project
                def member_of?(project)
                  roles_for_project(project).any? {|role| role.member?}
                end
                # Returns a hash of user's projects grouped by roles
                def projects_by_role
                  return @projects_by_role if @projects_by_role
                  @projects_by_role = Hash.new([])
                  memberships.each do |membership|
                    if membership.project
                      membership.roles.each do |role|
                        @projects_by_role[role] = [] unless @projects_by_role.key?(role)
                        @projects_by_role[role] << membership.project
                      end
                    end
                  end
                  @projects_by_role.each do |role, projects|
                    projects.uniq!
                  end
                  @projects_by_role
                end
                # Returns true if user is arg or belongs to arg
                def is_or_belongs_to?(arg)
                  if arg.is_a?(User)
                    self == arg
                  elsif arg.is_a?(Group)
                    arg.users.include?(self)
                  else
                    false
                  end
                end
                # Return true if the user is allowed to do the specified action on a specific context
                # Action can be:
                # * a parameter-like Hash (eg. :controller => 'projects', :action => 'edit')
                # * a permission Symbol (eg. :edit_project)
                # Context can be:
                # * a project : returns true if user is allowed to do the specified action on this project
                # * an array of projects : returns true if user is allowed on every project
                # * nil with options[:global] set : check if user has at least one role allowed for this action,
                #   or falls back to Non Member / Anonymous permissions depending if the user is logged
                def allowed_to?(action, context, options={}, &block)
                  if context && context.is_a?(Project)
                    return false unless context.allows_to?(action)
                    # Admin users are authorized for anything else
                    return true if admin?
                    roles = roles_for_project(context)
                    return false unless roles
                    roles.any? {|role|
                      (context.is_public? || role.member?) &&
                      role.allowed_to?(action) &&
                      (block_given? ? yield(role, self) : true)
                    }
                  elsif context && context.is_a?(Array)
                    if context.empty?
                      false
                    else
                      # Authorize if user is authorized on every element of the array
                      context.map {|project| allowed_to?(action, project, options, &block)}.reduce(:&)
                    end
                  elsif options[:global]
                    # Admin users are always authorized
                    return true if admin?
                    # authorize if user has at least one role that has this permission
                    roles = memberships.collect {|m| m.roles}.flatten.uniq
                    roles << (self.logged? ? Role.non_member : Role.anonymous)
                    roles.any? {|role|
                      role.allowed_to?(action) &&
                      (block_given? ? yield(role, self) : true)
                    }
                  else
                    false
                  end
                end
                # Is the user allowed to do the specified action on any project?
                # See allowed_to? for the actions and valid options.
                def allowed_to_globally?(action, options, &block)
                  allowed_to?(action, nil, options.reverse_merge(:global => true), &block)
                end
                # Returns true if the user is allowed to delete his own account
                def own_account_deletable?
                  Setting.unsubscribe? &&
                    (!admin? || User.active.where("admin = ? AND id <> ?", true, id).exists?)
                end
                safe_attributes 'login',
                  'firstname',
                  'lastname',
                  'mail',
                  'mail_notification',
                  'language',
                  'custom_field_values',
                  'custom_fields',
                  'identity_url'
                safe_attributes 'status',
                  'auth_source_id',
                  :if => lambda {|user, current_user| current_user.admin?}
                safe_attributes 'group_ids',
                  :if => lambda {|user, current_user| current_user.admin? && !user.new_record?}
                # Utility method to help check if a user should be notified about an
                # event.
                #
                # TODO: only supports Issue events currently
                def notify_about?(object)
                  if mail_notification == 'all'
                    true
                  elsif mail_notification.blank? || mail_notification == 'none'
                    false
                  else
                    case object
                    when Issue
                      case mail_notification
                      when 'selected', 'only_my_events'
                        # user receives notifications for created/assigned issues on unselected projects
                        object.author == self || is_or_belongs_to?(object.assigned_to) || is_or_belongs_to?(object.assigned_to_was)
                      when 'only_assigned'
                        is_or_belongs_to?(object.assigned_to) || is_or_belongs_to?(object.assigned_to_was)
                      when 'only_owner'
                        object.author == self
                      end
                    when News
                      # always send to project members except when mail_notification is set to 'none'
                      true
                    end
                  end
                end
                def self.current=(user)
                  Thread.current[:current_user] = user
                end
                def self.current
                  Thread.current[:current_user] ||= User.anonymous
                end
                # Returns the anonymous user.  If the anonymous user does not exist, it is created.  There can be only
                # one anonymous user per database.
                def self.anonymous
                  anonymous_user = AnonymousUser.first
                  if anonymous_user.nil?
                    anonymous_user = AnonymousUser.create(:lastname => 'Anonymous', :firstname => '', :mail => '', :login => '', :status => 0)
                    raise 'Unable to create the anonymous user.' if anonymous_user.new_record?
                  end
                  anonymous_user
                end
                # Salts all existing unsalted passwords
                # It changes password storage scheme from SHA1(password) to SHA1(salt + SHA1(password))
                # This method is used in the SaltPasswords migration and is to be kept as is
                def self.salt_unsalted_passwords!
                  transaction do
                    User.where("salt IS NULL OR salt = ''").find_each do |user|
                      next if user.hashed_password.blank?
                      salt = User.generate_salt
                      hashed_password = User.hash_password("#{salt}#{user.hashed_password}")
                      User.where(:id => user.id).update_all(:salt => salt, :hashed_password => hashed_password)
                    end
                  end
                end
                protected
                def validate_password_length
                  # Password length validation based on setting
                  if !password.nil? && password.size < Setting.password_min_length.to_i
                    errors.add(:password, :too_short, :count => Setting.password_min_length.to_i)
                  end
                end
                private
                # Removes references that are not handled by associations
                # Things that are not deleted are reassociated with the anonymous user
                def remove_references_before_destroy
                  return if self.id.nil?
                  substitute = User.anonymous
                  Attachment.update_all ['author_id = ?', substitute.id], ['author_id = ?', id]
                  Comment.update_all ['author_id = ?', substitute.id], ['author_id = ?', id]
                  Issue.update_all ['author_id = ?', substitute.id], ['author_id = ?', id]
                  Issue.update_all 'assigned_to_id = NULL', ['assigned_to_id = ?', id]
                  Journal.update_all ['user_id = ?', substitute.id], ['user_id = ?', id]
                  JournalDetail.update_all ['old_value = ?', substitute.id.to_s], ["property = 'attr' AND prop_key = 'assigned_to_id' AND old_value = ?", id.to_s]
                  JournalDetail.update_all ['value = ?', substitute.id.to_s], ["property = 'attr' AND prop_key = 'assigned_to_id' AND value = ?", id.to_s]
                  Message.update_all ['author_id = ?', substitute.id], ['author_id = ?', id]
                  News.update_all ['author_id = ?', substitute.id], ['author_id = ?', id]
                  # Remove private queries and keep public ones
                  ::Query.delete_all ['user_id = ? AND is_public = ?', id, false]
                  ::Query.update_all ['user_id = ?', substitute.id], ['user_id = ?', id]
                  TimeEntry.update_all ['user_id = ?', substitute.id], ['user_id = ?', id]
                  Token.delete_all ['user_id = ?', id]
                  Watcher.delete_all ['user_id = ?', id]
                  WikiContent.update_all ['author_id = ?', substitute.id], ['author_id = ?', id]
                  WikiContent::Version.update_all ['author_id = ?', substitute.id], ['author_id = ?', id]
                end
                # Return password digest
                def self.hash_password(clear_password)
                  Digest::SHA1.hexdigest(clear_password || "")
                end
                # Returns a 128bits random salt as a hex string (32 chars long)
                def self.generate_salt
                  Redmine::Utils.random_hex(16)
                end
              end
              class AnonymousUser < User
                validate :validate_anonymous_uniqueness, :on => :create
                def validate_anonymous_uniqueness
                  # There should be only one AnonymousUser in the database
                  errors.add :base, 'An anonymous user already exists.' if AnonymousUser.exists?
                end
                def available_custom_fields
                  []
                end
                # Overrides a few properties
                def logged?; false end
                def admin; false end
                def name(*args); I18n.t(:label_user_anonymous) end
                def mail; nil end
                def time_zone; nil end
                def rss_key; nil end
                def pref
                  UserPreference.new(:user => self)
                end
                # Anonymous user can not be destroyed
                def destroy
                  false
                end
              end

lib/plugins/acts_as_customizable/lib/acts_as_customizable.rb +2 -2

              # Redmine - project management software
              # Copyright (C) 2006-2013  Jean-Philippe Lang
              #
              # This program is free software; you can redistribute it and/or
              # modify it under the terms of the GNU General Public License
              # as published by the Free Software Foundation; either version 2
              # of the License, or (at your option) any later version.
              #
              # This program is distributed in the hope that it will be useful,
              # but WITHOUT ANY WARRANTY; without even the implied warranty of
              # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
              # GNU General Public License for more details.
              #
              # You should have received a copy of the GNU General Public License
              # along with this program; if not, write to the Free Software
              # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
              module Redmine
                module Acts
                  module Customizable
                    def self.included(base)
                      base.extend ClassMethods
                    end
                    module ClassMethods
                      def acts_as_customizable(options = {})
                        return if self.included_modules.include?(Redmine::Acts::Customizable::InstanceMethods)
                        cattr_accessor :customizable_options
                        self.customizable_options = options
                        has_many :custom_values, :as => :customized,
                                                 :include => :custom_field,
                                                 :order => "#{CustomField.table_name}.position",
                                                 :dependent => :delete_all,
                                                 :validate => false
-                       send :alias_method, :reload_without_custom_fields, :reload
                        send :include, Redmine::Acts::Customizable::InstanceMethods
                        validate :validate_custom_field_values
                        after_save :save_custom_field_values
                      end
                    end
                    module InstanceMethods
                      def self.included(base)
                        base.extend ClassMethods
+                       base.send :alias_method_chain, :reload, :custom_fields
                      end
                      def available_custom_fields
                        CustomField.where("type = '#{self.class.name}CustomField'").sorted.all
                      end
                      # Sets the values of the object's custom fields
                      # values is an array like [{'id' => 1, 'value' => 'foo'}, {'id' => 2, 'value' => 'bar'}]
                      def custom_fields=(values)
                        values_to_hash = values.inject({}) do |hash, v|
                          v = v.stringify_keys
                          if v['id'] && v.has_key?('value')
                            hash[v['id']] = v['value']
                          end
                          hash
                        end
                        self.custom_field_values = values_to_hash
                      end
                      # Sets the values of the object's custom fields
                      # values is a hash like {'1' => 'foo', 2 => 'bar'}
                      def custom_field_values=(values)
                        values = values.stringify_keys
                        custom_field_values.each do |custom_field_value|
                          key = custom_field_value.custom_field_id.to_s
                          if values.has_key?(key)
                            value = values[key]
                            if value.is_a?(Array)
                              value = value.reject(&:blank?).uniq
                              if value.empty?
                                value << ''
                              end
                            end
                            custom_field_value.value = value
                          end
                        end
                        @custom_field_values_changed = true
                      end
                      def custom_field_values
                        @custom_field_values ||= available_custom_fields.collect do |field|
                          x = CustomFieldValue.new
                          x.custom_field = field
                          x.customized = self
                          if field.multiple?
                            values = custom_values.select { |v| v.custom_field == field }
                            if values.empty?
                              values << custom_values.build(:customized => self, :custom_field => field, :value => nil)
                            end
                            x.value = values.map(&:value)
                          else
                            cv = custom_values.detect { |v| v.custom_field == field }
                            cv ||= custom_values.build(:customized => self, :custom_field => field, :value => nil)
                            x.value = cv.value
                          end
                          x
                        end
                      end
                      def visible_custom_field_values
                        custom_field_values.select(&:visible?)
                      end
                      def custom_field_values_changed?
                        @custom_field_values_changed == true
                      end
                      def custom_value_for(c)
                        field_id = (c.is_a?(CustomField) ? c.id : c.to_i)
                        custom_values.detect {|v| v.custom_field_id == field_id }
                      end
                      def custom_field_value(c)
                        field_id = (c.is_a?(CustomField) ? c.id : c.to_i)
                        custom_field_values.detect {|v| v.custom_field_id == field_id }.try(:value)
                      end
                      def validate_custom_field_values
                        if new_record? || custom_field_values_changed?
                          custom_field_values.each(&:validate_value)
                        end
                      end
                      def save_custom_field_values
                        target_custom_values = []
                        custom_field_values.each do |custom_field_value|
                          if custom_field_value.value.is_a?(Array)
                            custom_field_value.value.each do |v|
                              target = custom_values.detect {|cv| cv.custom_field == custom_field_value.custom_field && cv.value == v}
                              target ||= custom_values.build(:customized => self, :custom_field => custom_field_value.custom_field, :value => v)
                              target_custom_values << target
                            end
                          else
                            target = custom_values.detect {|cv| cv.custom_field == custom_field_value.custom_field}
                            target ||= custom_values.build(:customized => self, :custom_field => custom_field_value.custom_field)
                            target.value = custom_field_value.value
                            target_custom_values << target
                          end
                        end
                        self.custom_values = target_custom_values
                        custom_values.each(&:save)
                        @custom_field_values_changed = false
                        true
                      end
                      def reset_custom_values!
                        @custom_field_values = nil
                        @custom_field_values_changed = true
                      end
-                     def reload(*args)
+                     def reload_with_custom_fields(*args)
                        @custom_field_values = nil
                        @custom_field_values_changed = false
                        reload_without_custom_fields(*args)
                      end
                      module ClassMethods
                      end
                    end
                  end
                end
              end

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