jro_apps/redmine Commit - r4603:befd725b8b24

Prevent SystemStackError on Issue#all_dependent_issues with circular dependency (#7320)....

Jean-Philippe Lang -

r4603:befd725b8b24

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r4603:befd725b8b24

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app/models/issue.rb +6 -3

             # redMine - project management software
             # Copyright (C) 2006-2007  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
               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 => 'User', :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 :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'
               acts_as_attachable :after_remove => :attachment_removed
               acts_as_customizable
               acts_as_watchable
               acts_as_searchable :columns => ['subject', "#{table_name}.description", "#{Journal.table_name}.notes"],
                                  :include => [:project, :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
               validates_presence_of :subject, :priority, :project, :tracker, :author, :status
               validates_length_of :subject, :maximum => 255
               validates_inclusion_of :done_ratio, :in => 0..100
               validates_numericality_of :estimated_hours, :allow_nil => true
               named_scope :visible, lambda {|*args| { :include => :project,
                                                       :conditions => Project.allowed_to_condition(args.first || User.current, :view_issues) } }
               named_scope :open, :conditions => ["#{IssueStatus.table_name}.is_closed = ?", false], :include => :status
               named_scope :recently_updated, :order => "#{Issue.table_name}.updated_on DESC"
               named_scope :with_limit, lambda { |limit| { :limit => limit} }
               named_scope :on_active_project, :include => [:status, :project, :tracker],
                                               :conditions => ["#{Project.table_name}.status=#{Project::STATUS_ACTIVE}"]
               named_scope :for_gantt, lambda {
                 {
                   :include => [:tracker, :status, :assigned_to, :priority, :project, :fixed_version]
                 }
               }
               named_scope :without_version, lambda {
                 {
                   :conditions => { :fixed_version_id => nil}
                 }
               }
               named_scope :with_query, lambda {|query|
                 {
                   :conditions => Query.merge_conditions(query.statement)
                 }
               }
               before_create :default_assign
               before_save :close_duplicates, :update_done_ratio_from_issue_status
               after_save :reschedule_following_issues, :update_nested_set_attributes, :update_parent_attributes, :create_journal
               after_destroy :destroy_children
               after_destroy :update_parent_attributes
               # 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)
               end
               def after_initialize
                 if new_record?
                   # set default values for new records only
                   self.status ||= IssueStatus.default
                   self.priority ||= IssuePriority.default
                 end
               end
               # Overrides Redmine::Acts::Customizable::InstanceMethods#available_custom_fields
               def available_custom_fields
                 (project && tracker) ? project.all_issue_custom_fields.select {|c| tracker.custom_fields.include? c } : []
               end
               def copy_from(arg)
                 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
               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(*args)
                 ret = Issue.transaction do
                   move_to_project_without_transaction(*args) || raise(ActiveRecord::Rollback)
                 end || false
               end
               def move_to_project_without_transaction(new_project, new_tracker = nil, options = {})
                 options ||= {}
                 issue = options[:copy] ? self.class.new.copy_from(self) : self
                 if new_project && issue.project_id != new_project.id
                   # delete issue relations
                   unless Setting.cross_project_issue_relations?
                     issue.relations_from.clear
                     issue.relations_to.clear
                   end
                   # issue is moved to another project
                   # reassign to the category with same name if any
                   new_category = issue.category.nil? ? nil : new_project.issue_categories.find_by_name(issue.category.name)
                   issue.category = new_category
                   # Keep the fixed_version if it's still valid in the new_project
                   unless new_project.shared_versions.include?(issue.fixed_version)
                     issue.fixed_version = nil
                   end
                   issue.project = new_project
                   if issue.parent && issue.parent.project_id != issue.project_id
                     issue.parent_issue_id = nil
                   end
                 end
                 if new_tracker
                   issue.tracker = new_tracker
                   issue.reset_custom_values!
                 end
                 if options[:copy]
                   issue.custom_field_values = self.custom_field_values.inject({}) {|h,v| h[v.custom_field_id] = v.value; h}
                   issue.status = if options[:attributes] && options[:attributes][:status_id]
                                    IssueStatus.find_by_id(options[:attributes][:status_id])
                                  else
                                    self.status
                                  end
                 end
                 # Allow bulk setting of attributes on the issue
                 if options[:attributes]
                   issue.attributes = options[:attributes]
                 end
                 if issue.save
                   unless options[:copy]
                     # Manually update project_id on related time entries
                     TimeEntry.update_all("project_id = #{new_project.id}", {:issue_id => id})
                     issue.children.each do |child|
                       unless child.move_to_project_without_transaction(new_project)
                         # Move failed and transaction was rollback'd
                         return false
                       end
                     end
                   end
                 else
                   return false
                 end
                 issue
               end
               def status_id=(sid)
                 self.status = nil
                 write_attribute(:status_id, sid)
               end
               def priority_id=(pid)
                 self.priority = nil
                 write_attribute(:priority_id, pid)
               end
               def tracker_id=(tid)
                 self.tracker = nil
                 result = write_attribute(:tracker_id, tid)
                 @custom_field_values = nil
                 result
               end
               # Overrides attributes= so that tracker_id gets assigned first
               def attributes_with_tracker_first=(new_attributes, *args)
                 return if new_attributes.nil?
                 new_tracker_id = new_attributes['tracker_id'] || new_attributes[:tracker_id]
                 if new_tracker_id
                   self.tracker_id = new_tracker_id
                 end
                 send :attributes_without_tracker_first=, new_attributes, *args
               end
               # Do not redefine alias chain on reload (see #4838)
               alias_method_chain(:attributes=, :tracker_first) unless method_defined?(:attributes_without_tracker_first=)
               def estimated_hours=(h)
                 write_attribute :estimated_hours, (h.is_a?(String) ? h.to_hours : h)
               end
               safe_attributes 'tracker_id',
                 'status_id',
                 'parent_issue_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',
                 :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',
                 :if => lambda {|issue, user| issue.new_statuses_allowed_to(user).any? }
               # 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
               # TODO: move workflow/permission checks from controllers to here
               def safe_attributes=(attrs, user=User.current)
                 return unless attrs.is_a?(Hash)
                 # User can change issue attributes only if he has :edit permission or if a workflow transition is allowed
                 attrs = delete_unsafe_attributes(attrs, user)
                 return if attrs.empty?
                 # Tracker must be set before since new_statuses_allowed_to depends on it.
                 if t = attrs.delete('tracker_id')
                   self.tracker_id = t
                 end
                 if attrs['status_id']
                   unless new_statuses_allowed_to(user).collect(&:id).include?(attrs['status_id'].to_i)
                     attrs.delete('status_id')
                   end
                 end
                 unless leaf?
                   attrs.reject! {|k,v| %w(priority_id done_ratio start_date due_date estimated_hours).include?(k)}
                 end
                 if attrs.has_key?('parent_issue_id')
                   if !user.allowed_to?(:manage_subtasks, project)
                     attrs.delete('parent_issue_id')
                   elsif !attrs['parent_issue_id'].blank?
                     attrs.delete('parent_issue_id') unless Issue.visible(user).exists?(attrs['parent_issue_id'].to_i)
                   end
                 end
                 self.attributes = attrs
               end
               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
                 if self.due_date.nil? && @attributes['due_date'] && !@attributes['due_date'].empty?
                   errors.add :due_date, :not_a_date
                 end
                 if self.due_date and self.start_date and self.due_date < self.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_to_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 @parent_issue
                   if @parent_issue.project_id != project_id
                     errors.add :parent_issue_id, :not_same_project
                   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, :not_a_valid_parent
                     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)
                 @issue_before_change = self.clone
                 @issue_before_change.status = self.status
                 @custom_values_before_change = {}
                 self.custom_values.each {|c| @custom_values_before_change.store c.custom_field_id, c.value }
                 # Make sure updated_on is updated when adding a note.
                 updated_on_will_change!
                 @current_journal
               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?
                   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
               # 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.uniq.sort
               end
               # Versions that the issue can be assigned to
               def assignable_versions
                 @assignable_versions ||= (project.shared_versions.open + [Version.find_by_id(fixed_version_id_was)]).compact.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 status that user is able to apply
               def new_statuses_allowed_to(user, include_default=false)
                 statuses = status.find_new_statuses_allowed_to(user.roles_for_project(project), tracker)
                 statuses << status unless statuses.empty?
                 statuses << IssueStatus.default if include_default
                 statuses = statuses.uniq.sort
                 blocked? ? statuses.reject {|s| s.is_closed?} : statuses
               end
               # Returns the mail adresses of users that should be notified
               def recipients
                 notified = project.notified_users
                 # Author and assignee are always notified unless they have been
                 # locked or don't want to be notified
                 notified << author if author && author.active? && author.notify_about?(self)
                 notified << assigned_to if assigned_to && assigned_to.active? && assigned_to.notify_about?(self)
                 notified.uniq!
                 # Remove users that can not view the issue
                 notified.reject! {|user| !visible?(user)}
                 notified.collect(&:mail)
               end
               # Returns the total number of hours spent on this issue and its descendants
               #
               # Example:
               #   spent_hours => 0.0
               #   spent_hours => 50.2
               def spent_hours
                 @spent_hours ||= self_and_descendants.sum("#{TimeEntry.table_name}.hours", :include => :time_entries).to_f || 0.0
               end
               def relations
                 (relations_from + relations_to).sort
               end
-              def all_dependent_issues
+              def all_dependent_issues(except=nil)
+                except ||= self
                 dependencies = []
                 relations_from.each do |relation|
-                  dependencies << relation.issue_to
+                  if relation.issue_to && relation.issue_to != except
-                  dependencies += relation.issue_to.all_dependent_issues
+                    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
               def soonest_start
                 @soonest_start ||= (
                     relations_to.collect{|relation| relation.successor_soonest_start} +
                     ancestors.collect(&:soonest_start)
                   ).compact.max
               end
               def reschedule_after(date)
                 return if date.nil?
                 if leaf?
                   if start_date.nil? || start_date < date
                     self.start_date, self.due_date = date, date + duration
                     save
                   end
                 else
                   leaves.each do |leaf|
                     leaf.reschedule_after(date)
                   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 status-#{status.position} priority-#{priority.position}"
                 s << ' closed' if closed?
                 s << ' overdue' if overdue?
                 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, time_entry, attachments, and a journal from the parameters
               # Returns false if save fails
               def save_issue_with_child_records(params, existing_time_entry=nil)
                 Issue.transaction do
                   if params[:time_entry] && params[:time_entry][:hours].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 = Date.today
                     @time_entry.attributes = params[:time_entry]
                     self.time_entries << @time_entry
                   end
                   if valid?
                     attachments = Attachment.attach_files(self, params[:attachments])
                     attachments[:files].each {|a| @current_journal.details << JournalDetail.new(:property => 'attachment', :prop_key => a.id, :value => a.filename)}
                     # TODO: Rename hook
                     Redmine::Hook.call_hook(:controller_issues_edit_before_save, { :params => params, :issue => self, :time_entry => @time_entry, :journal => @current_journal})
                     begin
                       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
                     rescue ActiveRecord::StaleObjectError
                       attachments[:files].each(&:destroy)
                       errors.add_to_base l(:notice_locking_conflict)
                       raise ActiveRecord::Rollback
                     end
                   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)
                 parent_issue_id = arg.blank? ? nil : arg.to_i
                 if parent_issue_id && @parent_issue = Issue.find_by_id(parent_issue_id)
                   @parent_issue.id
                 else
                   @parent_issue = nil
                   nil
                 end
               end
               def parent_issue_id
                 if instance_variable_defined? :@parent_issue
                   @parent_issue.nil? ? nil : @parent_issue.id
                 else
                   parent_id
                 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,
                                                             i.project_id as project_id,
                                                             count(i.id) as total
                                                           from
                                                             #{Issue.table_name} i, #{IssueStatus.table_name} s
                                                           where
                                                             i.status_id=s.id
                                                             and i.project_id IN (#{project.descendants.active.collect{|p| p.id}.join(',')})
                                                           group by s.id, s.is_closed, i.project_id") if project.descendants.active.any?
               end
               # End ReportsController extraction
               # Returns an array of projects that current user can move issues to
               def self.allowed_target_projects_on_move
                 projects = []
                 if User.current.admin?
                   # admin is allowed to move issues to any active (visible) project
                   projects = Project.visible.all
                 elsif User.current.logged?
                   if Role.non_member.allowed_to?(:move_issues)
                     projects = Project.visible.all
                   else
                     User.current.memberships.each {|m| projects << m.project if m.roles.detect {|r| r.allowed_to?(:move_issues)}}
                   end
                 end
                 projects
               end
               private
               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", :include => :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)", :include => :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(false)
                 end
               end
               def destroy_children
                 unless leaf?
                   children.each do |child|
                     child.destroy
                   end
                 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.all(:conditions => merge_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'",
                                                             conditions),
                           :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 attachment deletion
               def attachment_removed(obj)
                 journal = init_journal(User.current)
                 journal.details << JournalDetail.new(:property => 'attachment',
                                                      :prop_key => obj.id,
                                                      :old_value => obj.filename)
                 journal.save
               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
               # Saves the changes in a Journal
               # Called after_save
               def create_journal
                 if @current_journal
                   # attributes changes
                   (Issue.column_names - %w(id description root_id lft rgt lock_version created_on updated_on)).each {|c|
                     @current_journal.details << JournalDetail.new(:property => 'attr',
                                                                   :prop_key => c,
                                                                   :old_value => @issue_before_change.send(c),
                                                                   :value => send(c)) unless send(c)==@issue_before_change.send(c)
                   }
                   # custom fields changes
                   custom_values.each {|c|
                     next if (@custom_values_before_change[c.custom_field_id]==c.value ||
                               (@custom_values_before_change[c.custom_field_id].blank? && c.value.blank?))
                     @current_journal.details << JournalDetail.new(:property => 'cf',
                                                                   :prop_key => c.custom_field_id,
                                                                   :old_value => @custom_values_before_change[c.custom_field_id],
                                                                   :value => c.value)
                   }
                   @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 = "i.#{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(i.id) as total
                                                           from
                                                               #{Issue.table_name} i, #{IssueStatus.table_name} s, #{joins} j
                                                           where
                                                             i.status_id=s.id
                                                             and #{where}
                                                             and i.project_id=#{project.id}
                                                           group by s.id, s.is_closed, j.id")
               end
             end

test/unit/issue_test.rb +19 0

             # redMine - project management software
             # Copyright (C) 2006-2007  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 File.expand_path('../../test_helper', __FILE__)
             class IssueTest < ActiveSupport::TestCase
               fixtures :projects, :users, :members, :member_roles, :roles,
                        :trackers, :projects_trackers,
                        :enabled_modules,
                        :versions,
                        :issue_statuses, :issue_categories, :issue_relations, :workflows,
                        :enumerations,
                        :issues,
                        :custom_fields, :custom_fields_projects, :custom_fields_trackers, :custom_values,
                        :time_entries
               def test_create
                 issue = Issue.new(:project_id => 1, :tracker_id => 1, :author_id => 3, :status_id => 1, :priority => IssuePriority.all.first, :subject => 'test_create', :description => 'IssueTest#test_create', :estimated_hours => '1:30')
                 assert issue.save
                 issue.reload
                 assert_equal 1.5, issue.estimated_hours
               end
               def test_create_minimal
                 issue = Issue.new(:project_id => 1, :tracker_id => 1, :author_id => 3, :status_id => 1, :priority => IssuePriority.all.first, :subject => 'test_create')
                 assert issue.save
                 assert issue.description.nil?
               end
               def test_create_with_required_custom_field
                 field = IssueCustomField.find_by_name('Database')
                 field.update_attribute(:is_required, true)
                 issue = Issue.new(:project_id => 1, :tracker_id => 1, :author_id => 1, :status_id => 1, :subject => 'test_create', :description => 'IssueTest#test_create_with_required_custom_field')
                 assert issue.available_custom_fields.include?(field)
                 # No value for the custom field
                 assert !issue.save
                 assert_equal I18n.translate('activerecord.errors.messages.invalid'), issue.errors.on(:custom_values)
                 # Blank value
                 issue.custom_field_values = { field.id => '' }
                 assert !issue.save
                 assert_equal I18n.translate('activerecord.errors.messages.invalid'), issue.errors.on(:custom_values)
                 # Invalid value
                 issue.custom_field_values = { field.id => 'SQLServer' }
                 assert !issue.save
                 assert_equal I18n.translate('activerecord.errors.messages.invalid'), issue.errors.on(:custom_values)
                 # Valid value
                 issue.custom_field_values = { field.id => 'PostgreSQL' }
                 assert issue.save
                 issue.reload
                 assert_equal 'PostgreSQL', issue.custom_value_for(field).value
               end
               def test_visible_scope_for_anonymous
                 # Anonymous user should see issues of public projects only
                 issues = Issue.visible(User.anonymous).all
                 assert issues.any?
                 assert_nil issues.detect {|issue| !issue.project.is_public?}
                 # Anonymous user should not see issues without permission
                 Role.anonymous.remove_permission!(:view_issues)
                 issues = Issue.visible(User.anonymous).all
                 assert issues.empty?
               end
               def test_visible_scope_for_user
                 user = User.find(9)
                 assert user.projects.empty?
                 # Non member user should see issues of public projects only
                 issues = Issue.visible(user).all
                 assert issues.any?
                 assert_nil issues.detect {|issue| !issue.project.is_public?}
                 # Non member user should not see issues without permission
                 Role.non_member.remove_permission!(:view_issues)
                 user.reload
                 issues = Issue.visible(user).all
                 assert issues.empty?
                 # User should see issues of projects for which he has view_issues permissions only
                 Member.create!(:principal => user, :project_id => 2, :role_ids => [1])
                 user.reload
                 issues = Issue.visible(user).all
                 assert issues.any?
                 assert_nil issues.detect {|issue| issue.project_id != 2}
               end
               def test_visible_scope_for_admin
                 user = User.find(1)
                 user.members.each(&:destroy)
                 assert user.projects.empty?
                 issues = Issue.visible(user).all
                 assert issues.any?
                 # Admin should see issues on private projects that he does not belong to
                 assert issues.detect {|issue| !issue.project.is_public?}
               end
               def test_errors_full_messages_should_include_custom_fields_errors
                 field = IssueCustomField.find_by_name('Database')
                 issue = Issue.new(:project_id => 1, :tracker_id => 1, :author_id => 1, :status_id => 1, :subject => 'test_create', :description => 'IssueTest#test_create_with_required_custom_field')
                 assert issue.available_custom_fields.include?(field)
                 # Invalid value
                 issue.custom_field_values = { field.id => 'SQLServer' }
                 assert !issue.valid?
                 assert_equal 1, issue.errors.full_messages.size
                 assert_equal "Database #{I18n.translate('activerecord.errors.messages.inclusion')}", issue.errors.full_messages.first
               end
               def test_update_issue_with_required_custom_field
                 field = IssueCustomField.find_by_name('Database')
                 field.update_attribute(:is_required, true)
                 issue = Issue.find(1)
                 assert_nil issue.custom_value_for(field)
                 assert issue.available_custom_fields.include?(field)
                 # No change to custom values, issue can be saved
                 assert issue.save
                 # Blank value
                 issue.custom_field_values = { field.id => '' }
                 assert !issue.save
                 # Valid value
                 issue.custom_field_values = { field.id => 'PostgreSQL' }
                 assert issue.save
                 issue.reload
                 assert_equal 'PostgreSQL', issue.custom_value_for(field).value
               end
               def test_should_not_update_attributes_if_custom_fields_validation_fails
                 issue = Issue.find(1)
                 field = IssueCustomField.find_by_name('Database')
                 assert issue.available_custom_fields.include?(field)
                 issue.custom_field_values = { field.id => 'Invalid' }
                 issue.subject = 'Should be not be saved'
                 assert !issue.save
                 issue.reload
                 assert_equal "Can't print recipes", issue.subject
               end
               def test_should_not_recreate_custom_values_objects_on_update
                 field = IssueCustomField.find_by_name('Database')
                 issue = Issue.find(1)
                 issue.custom_field_values = { field.id => 'PostgreSQL' }
                 assert issue.save
                 custom_value = issue.custom_value_for(field)
                 issue.reload
                 issue.custom_field_values = { field.id => 'MySQL' }
                 assert issue.save
                 issue.reload
                 assert_equal custom_value.id, issue.custom_value_for(field).id
               end
               def test_assigning_tracker_id_should_reload_custom_fields_values
                 issue = Issue.new(:project => Project.find(1))
                 assert issue.custom_field_values.empty?
                 issue.tracker_id = 1
                 assert issue.custom_field_values.any?
               end
               def test_assigning_attributes_should_assign_tracker_id_first
                 attributes = ActiveSupport::OrderedHash.new
                 attributes['custom_field_values'] = { '1' => 'MySQL' }
                 attributes['tracker_id'] = '1'
                 issue = Issue.new(:project => Project.find(1))
                 issue.attributes = attributes
                 assert_not_nil issue.custom_value_for(1)
                 assert_equal 'MySQL', issue.custom_value_for(1).value
               end
               def test_should_update_issue_with_disabled_tracker
                 p = Project.find(1)
                 issue = Issue.find(1)
                 p.trackers.delete(issue.tracker)
                 assert !p.trackers.include?(issue.tracker)
                 issue.reload
                 issue.subject = 'New subject'
                 assert issue.save
               end
               def test_should_not_set_a_disabled_tracker
                 p = Project.find(1)
                 p.trackers.delete(Tracker.find(2))
                 issue = Issue.find(1)
                 issue.tracker_id = 2
                 issue.subject = 'New subject'
                 assert !issue.save
                 assert_not_nil issue.errors.on(:tracker_id)
               end
               def test_category_based_assignment
                 issue = Issue.create(:project_id => 1, :tracker_id => 1, :author_id => 3, :status_id => 1, :priority => IssuePriority.all.first, :subject => 'Assignment test', :description => 'Assignment test', :category_id => 1)
                 assert_equal IssueCategory.find(1).assigned_to, issue.assigned_to
               end
               def test_copy
                 issue = Issue.new.copy_from(1)
                 assert issue.save
                 issue.reload
                 orig = Issue.find(1)
                 assert_equal orig.subject, issue.subject
                 assert_equal orig.tracker, issue.tracker
                 assert_equal "125", issue.custom_value_for(2).value
               end
               def test_copy_should_copy_status
                 orig = Issue.find(8)
                 assert orig.status != IssueStatus.default
                 issue = Issue.new.copy_from(orig)
                 assert issue.save
                 issue.reload
                 assert_equal orig.status, issue.status
               end
               def test_should_close_duplicates
                 # Create 3 issues
                 issue1 = Issue.new(:project_id => 1, :tracker_id => 1, :author_id => 1, :status_id => 1, :priority => IssuePriority.all.first, :subject => 'Duplicates test', :description => 'Duplicates test')
                 assert issue1.save
                 issue2 = issue1.clone
                 assert issue2.save
                 issue3 = issue1.clone
                 assert issue3.save
                 # 2 is a dupe of 1
                 IssueRelation.create(:issue_from => issue2, :issue_to => issue1, :relation_type => IssueRelation::TYPE_DUPLICATES)
                 # And 3 is a dupe of 2
                 IssueRelation.create(:issue_from => issue3, :issue_to => issue2, :relation_type => IssueRelation::TYPE_DUPLICATES)
                 # And 3 is a dupe of 1 (circular duplicates)
                 IssueRelation.create(:issue_from => issue3, :issue_to => issue1, :relation_type => IssueRelation::TYPE_DUPLICATES)
                 assert issue1.reload.duplicates.include?(issue2)
                 # Closing issue 1
                 issue1.init_journal(User.find(:first), "Closing issue1")
                 issue1.status = IssueStatus.find :first, :conditions => {:is_closed => true}
                 assert issue1.save
                 # 2 and 3 should be also closed
                 assert issue2.reload.closed?
                 assert issue3.reload.closed?
               end
               def test_should_not_close_duplicated_issue
                 # Create 3 issues
                 issue1 = Issue.new(:project_id => 1, :tracker_id => 1, :author_id => 1, :status_id => 1, :priority => IssuePriority.all.first, :subject => 'Duplicates test', :description => 'Duplicates test')
                 assert issue1.save
                 issue2 = issue1.clone
                 assert issue2.save
                 # 2 is a dupe of 1
                 IssueRelation.create(:issue_from => issue2, :issue_to => issue1, :relation_type => IssueRelation::TYPE_DUPLICATES)
                 # 2 is a dup of 1 but 1 is not a duplicate of 2
                 assert !issue2.reload.duplicates.include?(issue1)
                 # Closing issue 2
                 issue2.init_journal(User.find(:first), "Closing issue2")
                 issue2.status = IssueStatus.find :first, :conditions => {:is_closed => true}
                 assert issue2.save
                 # 1 should not be also closed
                 assert !issue1.reload.closed?
               end
               def test_assignable_versions
                 issue = Issue.new(:project_id => 1, :tracker_id => 1, :author_id => 1, :status_id => 1, :fixed_version_id => 1, :subject => 'New issue')
                 assert_equal ['open'], issue.assignable_versions.collect(&:status).uniq
               end
               def test_should_not_be_able_to_assign_a_new_issue_to_a_closed_version
                 issue = Issue.new(:project_id => 1, :tracker_id => 1, :author_id => 1, :status_id => 1, :fixed_version_id => 1, :subject => 'New issue')
                 assert !issue.save
                 assert_not_nil issue.errors.on(:fixed_version_id)
               end
               def test_should_not_be_able_to_assign_a_new_issue_to_a_locked_version
                 issue = Issue.new(:project_id => 1, :tracker_id => 1, :author_id => 1, :status_id => 1, :fixed_version_id => 2, :subject => 'New issue')
                 assert !issue.save
                 assert_not_nil issue.errors.on(:fixed_version_id)
               end
               def test_should_be_able_to_assign_a_new_issue_to_an_open_version
                 issue = Issue.new(:project_id => 1, :tracker_id => 1, :author_id => 1, :status_id => 1, :fixed_version_id => 3, :subject => 'New issue')
                 assert issue.save
               end
               def test_should_be_able_to_update_an_issue_assigned_to_a_closed_version
                 issue = Issue.find(11)
                 assert_equal 'closed', issue.fixed_version.status
                 issue.subject = 'Subject changed'
                 assert issue.save
               end
               def test_should_not_be_able_to_reopen_an_issue_assigned_to_a_closed_version
                 issue = Issue.find(11)
                 issue.status_id = 1
                 assert !issue.save
                 assert_not_nil issue.errors.on_base
               end
               def test_should_be_able_to_reopen_and_reassign_an_issue_assigned_to_a_closed_version
                 issue = Issue.find(11)
                 issue.status_id = 1
                 issue.fixed_version_id = 3
                 assert issue.save
               end
               def test_should_be_able_to_reopen_an_issue_assigned_to_a_locked_version
                 issue = Issue.find(12)
                 assert_equal 'locked', issue.fixed_version.status
                 issue.status_id = 1
                 assert issue.save
               end
               def test_move_to_another_project_with_same_category
                 issue = Issue.find(1)
                 assert issue.move_to_project(Project.find(2))
                 issue.reload
                 assert_equal 2, issue.project_id
                 # Category changes
                 assert_equal 4, issue.category_id
                 # Make sure time entries were move to the target project
                 assert_equal 2, issue.time_entries.first.project_id
               end
               def test_move_to_another_project_without_same_category
                 issue = Issue.find(2)
                 assert issue.move_to_project(Project.find(2))
                 issue.reload
                 assert_equal 2, issue.project_id
                 # Category cleared
                 assert_nil issue.category_id
               end
               def test_move_to_another_project_should_clear_fixed_version_when_not_shared
                 issue = Issue.find(1)
                 issue.update_attribute(:fixed_version_id, 1)
                 assert issue.move_to_project(Project.find(2))
                 issue.reload
                 assert_equal 2, issue.project_id
                 # Cleared fixed_version
                 assert_equal nil, issue.fixed_version
               end
               def test_move_to_another_project_should_keep_fixed_version_when_shared_with_the_target_project
                 issue = Issue.find(1)
                 issue.update_attribute(:fixed_version_id, 4)
                 assert issue.move_to_project(Project.find(5))
                 issue.reload
                 assert_equal 5, issue.project_id
                 # Keep fixed_version
                 assert_equal 4, issue.fixed_version_id
               end
               def test_move_to_another_project_should_clear_fixed_version_when_not_shared_with_the_target_project
                 issue = Issue.find(1)
                 issue.update_attribute(:fixed_version_id, 1)
                 assert issue.move_to_project(Project.find(5))
                 issue.reload
                 assert_equal 5, issue.project_id
                 # Cleared fixed_version
                 assert_equal nil, issue.fixed_version
               end
               def test_move_to_another_project_should_keep_fixed_version_when_shared_systemwide
                 issue = Issue.find(1)
                 issue.update_attribute(:fixed_version_id, 7)
                 assert issue.move_to_project(Project.find(2))
                 issue.reload
                 assert_equal 2, issue.project_id
                 # Keep fixed_version
                 assert_equal 7, issue.fixed_version_id
               end
               def test_move_to_another_project_with_disabled_tracker
                 issue = Issue.find(1)
                 target = Project.find(2)
                 target.tracker_ids = [3]
                 target.save
                 assert_equal false, issue.move_to_project(target)
                 issue.reload
                 assert_equal 1, issue.project_id
               end
               def test_copy_to_the_same_project
                 issue = Issue.find(1)
                 copy = nil
                 assert_difference 'Issue.count' do
                   copy = issue.move_to_project(issue.project, nil, :copy => true)
                 end
                 assert_kind_of Issue, copy
                 assert_equal issue.project, copy.project
                 assert_equal "125", copy.custom_value_for(2).value
               end
               def test_copy_to_another_project_and_tracker
                 issue = Issue.find(1)
                 copy = nil
                 assert_difference 'Issue.count' do
                   copy = issue.move_to_project(Project.find(3), Tracker.find(2), :copy => true)
                 end
                 copy.reload
                 assert_kind_of Issue, copy
                 assert_equal Project.find(3), copy.project
                 assert_equal Tracker.find(2), copy.tracker
                 # Custom field #2 is not associated with target tracker
                 assert_nil copy.custom_value_for(2)
               end
               context "#move_to_project" do
                 context "as a copy" do
                   setup do
                     @issue = Issue.find(1)
                     @copy = nil
                   end
                   should "allow assigned_to changes" do
                     @copy = @issue.move_to_project(Project.find(3), Tracker.find(2), {:copy => true, :attributes => {:assigned_to_id => 3}})
                     assert_equal 3, @copy.assigned_to_id
                   end
                   should "allow status changes" do
                     @copy = @issue.move_to_project(Project.find(3), Tracker.find(2), {:copy => true, :attributes => {:status_id => 2}})
                     assert_equal 2, @copy.status_id
                   end
                   should "allow start date changes" do
                     date = Date.today
                     @copy = @issue.move_to_project(Project.find(3), Tracker.find(2), {:copy => true, :attributes => {:start_date => date}})
                     assert_equal date, @copy.start_date
                   end
                   should "allow due date changes" do
                     date = Date.today
                     @copy = @issue.move_to_project(Project.find(3), Tracker.find(2), {:copy => true, :attributes => {:due_date => date}})
                     assert_equal date, @copy.due_date
                   end
                 end
               end
               def test_recipients_should_not_include_users_that_cannot_view_the_issue
                 issue = Issue.find(12)
                 assert issue.recipients.include?(issue.author.mail)
                 # move the issue to a private project
                 copy  = issue.move_to_project(Project.find(5), Tracker.find(2), :copy => true)
                 # author is not a member of project anymore
                 assert !copy.recipients.include?(copy.author.mail)
               end
               def test_watcher_recipients_should_not_include_users_that_cannot_view_the_issue
                 user = User.find(3)
                 issue = Issue.find(9)
                 Watcher.create!(:user => user, :watchable => issue)
                 assert issue.watched_by?(user)
                 assert !issue.watcher_recipients.include?(user.mail)
               end
               def test_issue_destroy
                 Issue.find(1).destroy
                 assert_nil Issue.find_by_id(1)
                 assert_nil TimeEntry.find_by_issue_id(1)
               end
               def test_blocked
                 blocked_issue = Issue.find(9)
                 blocking_issue = Issue.find(10)
                 assert blocked_issue.blocked?
                 assert !blocking_issue.blocked?
               end
               def test_blocked_issues_dont_allow_closed_statuses
                 blocked_issue = Issue.find(9)
                 allowed_statuses = blocked_issue.new_statuses_allowed_to(users(:users_002))
                 assert !allowed_statuses.empty?
                 closed_statuses = allowed_statuses.select {|st| st.is_closed?}
                 assert closed_statuses.empty?
               end
               def test_unblocked_issues_allow_closed_statuses
                 blocking_issue = Issue.find(10)
                 allowed_statuses = blocking_issue.new_statuses_allowed_to(users(:users_002))
                 assert !allowed_statuses.empty?
                 closed_statuses = allowed_statuses.select {|st| st.is_closed?}
                 assert !closed_statuses.empty?
               end
               def test_rescheduling_an_issue_should_reschedule_following_issue
                 issue1 = Issue.create!(:project_id => 1, :tracker_id => 1, :author_id => 1, :status_id => 1, :subject => '-', :start_date => Date.today, :due_date => Date.today + 2)
                 issue2 = Issue.create!(:project_id => 1, :tracker_id => 1, :author_id => 1, :status_id => 1, :subject => '-', :start_date => Date.today, :due_date => Date.today + 2)
                 IssueRelation.create!(:issue_from => issue1, :issue_to => issue2, :relation_type => IssueRelation::TYPE_PRECEDES)
                 assert_equal issue1.due_date + 1, issue2.reload.start_date
                 issue1.due_date = Date.today + 5
                 issue1.save!
                 assert_equal issue1.due_date + 1, issue2.reload.start_date
               end
               def test_overdue
                 assert Issue.new(:due_date => 1.day.ago.to_date).overdue?
                 assert !Issue.new(:due_date => Date.today).overdue?
                 assert !Issue.new(:due_date => 1.day.from_now.to_date).overdue?
                 assert !Issue.new(:due_date => nil).overdue?
                 assert !Issue.new(:due_date => 1.day.ago.to_date, :status => IssueStatus.find(:first, :conditions => {:is_closed => true})).overdue?
               end
               context "#behind_schedule?" do
                 should "be false if the issue has no start_date" do
                   assert !Issue.new(:start_date => nil, :due_date => 1.day.from_now.to_date, :done_ratio => 0).behind_schedule?
                 end
                 should "be false if the issue has no end_date" do
                   assert !Issue.new(:start_date => 1.day.from_now.to_date, :due_date => nil, :done_ratio => 0).behind_schedule?
                 end
                 should "be false if the issue has more done than it's calendar time" do
                   assert !Issue.new(:start_date => 50.days.ago.to_date, :due_date => 50.days.from_now.to_date, :done_ratio => 90).behind_schedule?
                 end
                 should "be true if the issue hasn't been started at all" do
                   assert Issue.new(:start_date => 1.day.ago.to_date, :due_date => 1.day.from_now.to_date, :done_ratio => 0).behind_schedule?
                 end
                 should "be true if the issue has used more calendar time than it's done ratio" do
                   assert Issue.new(:start_date => 100.days.ago.to_date, :due_date => Date.today, :done_ratio => 90).behind_schedule?
                 end
               end
               context "#assignable_users" do
                 should "be Users" do
                   assert_kind_of User, Issue.find(1).assignable_users.first
                 end
                 should "include the issue author" do
                   project = Project.find(1)
                   non_project_member = User.generate!
                   issue = Issue.generate_for_project!(project, :author => non_project_member)
                   assert issue.assignable_users.include?(non_project_member)
                 end
                 should "not show the issue author twice" do
                   assignable_user_ids = Issue.find(1).assignable_users.collect(&:id)
                   assert_equal 2, assignable_user_ids.length
                   assignable_user_ids.each do |user_id|
                     assert_equal 1, assignable_user_ids.select {|i| i == user_id}.length, "User #{user_id} appears more or less than once"
                   end
                 end
               end
               def test_create_should_send_email_notification
                 ActionMailer::Base.deliveries.clear
                 issue = Issue.new(:project_id => 1, :tracker_id => 1, :author_id => 3, :status_id => 1, :priority => IssuePriority.all.first, :subject => 'test_create', :estimated_hours => '1:30')
                 assert issue.save
                 assert_equal 1, ActionMailer::Base.deliveries.size
               end
               def test_stale_issue_should_not_send_email_notification
                 ActionMailer::Base.deliveries.clear
                 issue = Issue.find(1)
                 stale = Issue.find(1)
                 issue.init_journal(User.find(1))
                 issue.subject = 'Subjet update'
                 assert issue.save
                 assert_equal 1, ActionMailer::Base.deliveries.size
                 ActionMailer::Base.deliveries.clear
                 stale.init_journal(User.find(1))
                 stale.subject = 'Another subjet update'
                 assert_raise ActiveRecord::StaleObjectError do
                   stale.save
                 end
                 assert ActionMailer::Base.deliveries.empty?
               end
               def test_saving_twice_should_not_duplicate_journal_details
                 i = Issue.find(:first)
                 i.init_journal(User.find(2), 'Some notes')
                 # initial changes
                 i.subject = 'New subject'
                 i.done_ratio = i.done_ratio + 10
                 assert_difference 'Journal.count' do
                   assert i.save
                 end
                 # 1 more change
                 i.priority = IssuePriority.find(:first, :conditions => ["id <> ?", i.priority_id])
                 assert_no_difference 'Journal.count' do
                   assert_difference 'JournalDetail.count', 1 do
                     i.save
                   end
                 end
                 # no more change
                 assert_no_difference 'Journal.count' do
                   assert_no_difference 'JournalDetail.count' do
                     i.save
                   end
                 end
               end
+              def test_all_dependent_issues
+                IssueRelation.delete_all
+                assert IssueRelation.create!(:issue_from => Issue.find(1), :issue_to => Issue.find(2), :relation_type => IssueRelation::TYPE_PRECEDES)
+                assert IssueRelation.create!(:issue_from => Issue.find(2), :issue_to => Issue.find(3), :relation_type => IssueRelation::TYPE_PRECEDES)
+                assert IssueRelation.create!(:issue_from => Issue.find(3), :issue_to => Issue.find(8), :relation_type => IssueRelation::TYPE_PRECEDES)
+                assert_equal [2, 3, 8], Issue.find(1).all_dependent_issues.collect(&:id).sort
+              end
+              def test_all_dependent_issues_with_persistent_circular_dependency
+                IssueRelation.delete_all
+                assert IssueRelation.create!(:issue_from => Issue.find(1), :issue_to => Issue.find(2), :relation_type => IssueRelation::TYPE_PRECEDES)
+                assert IssueRelation.create!(:issue_from => Issue.find(2), :issue_to => Issue.find(3), :relation_type => IssueRelation::TYPE_PRECEDES)
+                # Validation skipping
+                assert IssueRelation.new(:issue_from => Issue.find(3), :issue_to => Issue.find(1), :relation_type => IssueRelation::TYPE_PRECEDES).save(false)
+                assert_equal [2, 3], Issue.find(1).all_dependent_issues.collect(&:id).sort
+              end
               context "#done_ratio" do
                 setup do
                   @issue = Issue.find(1)
                   @issue_status = IssueStatus.find(1)
                   @issue_status.update_attribute(:default_done_ratio, 50)
                   @issue2 = Issue.find(2)
                   @issue_status2 = IssueStatus.find(2)
                   @issue_status2.update_attribute(:default_done_ratio, 0)
                 end
                 context "with Setting.issue_done_ratio using the issue_field" do
                   setup do
                     Setting.issue_done_ratio = 'issue_field'
                   end
                   should "read the issue's field" do
                     assert_equal 0, @issue.done_ratio
                     assert_equal 30, @issue2.done_ratio
                   end
                 end
                 context "with Setting.issue_done_ratio using the issue_status" do
                   setup do
                     Setting.issue_done_ratio = 'issue_status'
                   end
                   should "read the Issue Status's default done ratio" do
                     assert_equal 50, @issue.done_ratio
                     assert_equal 0, @issue2.done_ratio
                   end
                 end
               end
               context "#update_done_ratio_from_issue_status" do
                 setup do
                   @issue = Issue.find(1)
                   @issue_status = IssueStatus.find(1)
                   @issue_status.update_attribute(:default_done_ratio, 50)
                   @issue2 = Issue.find(2)
                   @issue_status2 = IssueStatus.find(2)
                   @issue_status2.update_attribute(:default_done_ratio, 0)
                 end
                 context "with Setting.issue_done_ratio using the issue_field" do
                   setup do
                     Setting.issue_done_ratio = 'issue_field'
                   end
                   should "not change the issue" do
                     @issue.update_done_ratio_from_issue_status
                     @issue2.update_done_ratio_from_issue_status
                     assert_equal 0, @issue.read_attribute(:done_ratio)
                     assert_equal 30, @issue2.read_attribute(:done_ratio)
                   end
                 end
                 context "with Setting.issue_done_ratio using the issue_status" do
                   setup do
                     Setting.issue_done_ratio = 'issue_status'
                   end
                   should "change the issue's done ratio" do
                     @issue.update_done_ratio_from_issue_status
                     @issue2.update_done_ratio_from_issue_status
                     assert_equal 50, @issue.read_attribute(:done_ratio)
                     assert_equal 0, @issue2.read_attribute(:done_ratio)
                   end
                 end
               end
               test "#by_tracker" do
                 groups = Issue.by_tracker(Project.find(1))
                 assert_equal 3, groups.size
                 assert_equal 7, groups.inject(0) {|sum, group| sum + group['total'].to_i}
               end
               test "#by_version" do
                 groups = Issue.by_version(Project.find(1))
                 assert_equal 3, groups.size
                 assert_equal 3, groups.inject(0) {|sum, group| sum + group['total'].to_i}
               end
               test "#by_priority" do
                 groups = Issue.by_priority(Project.find(1))
                 assert_equal 4, groups.size
                 assert_equal 7, groups.inject(0) {|sum, group| sum + group['total'].to_i}
               end
               test "#by_category" do
                 groups = Issue.by_category(Project.find(1))
                 assert_equal 2, groups.size
                 assert_equal 3, groups.inject(0) {|sum, group| sum + group['total'].to_i}
               end
               test "#by_assigned_to" do
                 groups = Issue.by_assigned_to(Project.find(1))
                 assert_equal 2, groups.size
                 assert_equal 2, groups.inject(0) {|sum, group| sum + group['total'].to_i}
               end
               test "#by_author" do
                 groups = Issue.by_author(Project.find(1))
                 assert_equal 4, groups.size
                 assert_equal 7, groups.inject(0) {|sum, group| sum + group['total'].to_i}
               end
               test "#by_subproject" do
                 groups = Issue.by_subproject(Project.find(1))
                 assert_equal 2, groups.size
                 assert_equal 5, groups.inject(0) {|sum, group| sum + group['total'].to_i}
               end
               context ".allowed_target_projects_on_move" do
                 should "return all active projects for admin users" do
                   User.current = User.find(1)
                   assert_equal Project.active.count, Issue.allowed_target_projects_on_move.size
                 end
                 should "return allowed projects for non admin users" do
                   User.current = User.find(2)
                   Role.non_member.remove_permission! :move_issues
                   assert_equal 3, Issue.allowed_target_projects_on_move.size
                   Role.non_member.add_permission! :move_issues
                   assert_equal Project.active.count, Issue.allowed_target_projects_on_move.size
                 end
               end
               def test_recently_updated_with_limit_scopes
                 #should return the last updated issue
                 assert_equal 1, Issue.recently_updated.with_limit(1).length
                 assert_equal Issue.find(:first, :order => "updated_on DESC"), Issue.recently_updated.with_limit(1).first
               end
               def test_on_active_projects_scope
                 assert Project.find(2).archive
                 before = Issue.on_active_project.length
                 # test inclusion to results
                 issue = Issue.generate_for_project!(Project.find(1), :tracker => Project.find(2).trackers.first)
                 assert_equal before + 1, Issue.on_active_project.length
                 # Move to an archived project
                 issue.project = Project.find(2)
                 assert issue.save
                 assert_equal before, Issue.on_active_project.length
               end
               context "Issue#recipients" do
                 setup do
                   @project = Project.find(1)
                   @author = User.generate_with_protected!
                   @assignee = User.generate_with_protected!
                   @issue = Issue.generate_for_project!(@project, :assigned_to => @assignee, :author => @author)
                 end
                 should "include project recipients" do
                   assert @project.recipients.present?
                   @project.recipients.each do |project_recipient|
                     assert @issue.recipients.include?(project_recipient)
                   end
                 end
                 should "include the author if the author is active" do
                   assert @issue.author, "No author set for Issue"
                   assert @issue.recipients.include?(@issue.author.mail)
                 end
                 should "include the assigned to user if the assigned to user is active" do
                   assert @issue.assigned_to, "No assigned_to set for Issue"
                   assert @issue.recipients.include?(@issue.assigned_to.mail)
                 end
                 should "not include users who opt out of all email" do
                   @author.update_attribute(:mail_notification, :none)
                   assert !@issue.recipients.include?(@issue.author.mail)
                 end
                 should "not include the issue author if they are only notified of assigned issues" do
                   @author.update_attribute(:mail_notification, :only_assigned)
                   assert !@issue.recipients.include?(@issue.author.mail)
                 end
                 should "not include the assigned user if they are only notified of owned issues" do
                   @assignee.update_attribute(:mail_notification, :only_owner)
                   assert !@issue.recipients.include?(@issue.assigned_to.mail)
                 end
               end
             end

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