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# redMine - project management software
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# Copyright (C) 2006-2007 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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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 => '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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: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, :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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attr_protected :locked, :sticky
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validates_presence_of :subject, :content
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validates_length_of :subject, :maximum => 255
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after_create :add_author_as_watcher
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def validate_on_create
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# Can not reply to a locked topic
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errors.add_to_base 'Topic is locked' if root.locked? && self != root
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end
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def after_create
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board.update_attribute(:last_message_id, self.id)
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board.increment! :messages_count
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if parent
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parent.reload.update_attribute(:last_reply_id, self.id)
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else
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board.increment! :topics_count
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end
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end
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def after_destroy
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# The following line is required so that the previous counter
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# updates (due to children removal) are not overwritten
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board.reload
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board.decrement! :messages_count
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board.decrement! :topics_count unless parent
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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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