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# Redmine - project management software
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# Copyright (C) 2006-2012 Jean-Philippe Lang
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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class Message < ActiveRecord::Base
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include Redmine::SafeAttributes
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belongs_to :board
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belongs_to :author, :class_name => 'User', :foreign_key => 'author_id'
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acts_as_tree :counter_cache => :replies_count, :order => "#{Message.table_name}.created_on ASC"
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acts_as_attachable
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belongs_to :last_reply, :class_name => 'Message', :foreign_key => 'last_reply_id'
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acts_as_searchable :columns => ['subject', 'content'],
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:include => {:board => :project},
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:project_key => "#{Board.table_name}.project_id",
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:date_column => "#{table_name}.created_on"
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acts_as_event :title => Proc.new {|o| "#{o.board.name}: #{o.subject}"},
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:description => :content,
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:group => :parent,
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:type => Proc.new {|o| o.parent_id.nil? ? 'message' : 'reply'},
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:url => Proc.new {|o| {:controller => 'messages', :action => 'show', :board_id => o.board_id}.merge(o.parent_id.nil? ? {:id => o.id} :
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{:id => o.parent_id, :r => o.id, :anchor => "message-#{o.id}"})}
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acts_as_activity_provider :find_options => {:include => [{:board => :project}, :author]},
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:author_key => :author_id
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acts_as_watchable
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validates_presence_of :board, :subject, :content
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validates_length_of :subject, :maximum => 255
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validate :cannot_reply_to_locked_topic, :on => :create
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after_create :add_author_as_watcher, :reset_counters!
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after_update :update_messages_board
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after_destroy :reset_counters!
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scope :visible, lambda {|*args|
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includes(:board => :project).where(Project.allowed_to_condition(args.shift || User.current, :view_messages, *args))
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}
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safe_attributes 'subject', 'content'
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safe_attributes 'locked', 'sticky', 'board_id',
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:if => lambda {|message, user|
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user.allowed_to?(:edit_messages, message.project)
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}
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def visible?(user=User.current)
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!user.nil? && user.allowed_to?(:view_messages, project)
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end
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def cannot_reply_to_locked_topic
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# Can not reply to a locked topic
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errors.add :base, 'Topic is locked' if root.locked? && self != root
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end
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def update_messages_board
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if board_id_changed?
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Message.update_all({:board_id => board_id}, ["id = ? OR parent_id = ?", root.id, root.id])
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Board.reset_counters!(board_id_was)
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Board.reset_counters!(board_id)
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end
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end
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def reset_counters!
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if parent && parent.id
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Message.update_all({:last_reply_id => parent.children.maximum(:id)}, {:id => parent.id})
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end
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board.reset_counters!
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end
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def sticky=(arg)
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write_attribute :sticky, (arg == true || arg.to_s == '1' ? 1 : 0)
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end
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def sticky?
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sticky == 1
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end
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def project
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board.project
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end
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def editable_by?(usr)
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usr && usr.logged? && (usr.allowed_to?(:edit_messages, project) || (self.author == usr && usr.allowed_to?(:edit_own_messages, project)))
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end
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def destroyable_by?(usr)
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usr && usr.logged? && (usr.allowed_to?(:delete_messages, project) || (self.author == usr && usr.allowed_to?(:delete_own_messages, project)))
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end
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private
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def add_author_as_watcher
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Watcher.create(:watchable => self.root, :user => author)
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end
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end
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