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# nwb
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# 课程与项目分离后的处理留言类
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class CourseJournalsForMessage < ActiveRecord::Base
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self.table_name = "#{table_name_prefix}journals_for_messages#{table_name_suffix}"
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include Redmine::SafeAttributes
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safe_attributes "jour_type", # 留言所属类型
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"jour_id", # 留言所属类型的id
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"notes", # 留言内容
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"reply_id", # 留言被回复留言者的用户id(用户a回复了用户b，这是b的id，用以查询谁给b留言了)
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"status", # 留言是否被查看(弃用)
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"user_id", # 留言者的id
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"m_parent_id", # 留言信息的父留言id
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"is_readed", # 留言是否已读
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"m_reply_count", # 留言的回复数量
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"m_reply_id" # 回复某留言的留言id(a留言回复了b留言，这是b留言的id)
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acts_as_tree :foreign_key => 'm_parent_id', :counter_cache => :m_reply_count, :order => "#{JournalsForMessage.table_name}.created_on ASC"
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belongs_to :project,
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:foreign_key => 'jour_id',
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:conditions => "#{self.table_name}.jour_type = 'Project' "
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belongs_to :course,
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:foreign_key => 'jour_id',
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:conditions => "#{self.table_name}.jour_type = 'Course' "
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belongs_to :jour, :polymorphic => true
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belongs_to :user
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belongs_to :homework_attach
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belongs_to :at_user, :class_name => "User", :foreign_key => 'reply_id'
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acts_as_event :title => Proc.new {|o| "#{l(:label_my_message)}"},
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:datetime => Proc.new {|o| o.updated_on },
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:author => Proc.new {|o| o.user },
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:description => Proc.new{|o| o.notes },
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:type => Proc.new {|o| o.jour_type },
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:url => Proc.new {|o|
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(o.jour.kind_of? Project) ? {:controller => 'projects', :action => 'feedback', :id => o.jour, :r => o.id, :anchor => "word_li_#{o.id}"} : {}
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}#{:controller => 'documents', :action => 'show', :id => o.id}}
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acts_as_activity_provider :author_key => :user_id,
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:timestamp => "#{self.table_name}.updated_on",
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:find_options => {:include => :course }
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has_many :acts, :class_name => 'Activity', :as => :act, :dependent => :destroy
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validates :notes, presence: true
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after_create :act_as_activity #huang
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after_create :reset_counters!
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after_destroy :reset_counters!
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# default_scope { where('m_parent_id IS NULL') }
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def self.create_by_user? user
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if user.anonymous?
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return false
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else
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return true
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end
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end
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def self.remove_by_user? user
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if( self.user == user ||
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( self.jour.kind_of?(User) && self.jour== user )
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)
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true
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else
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false
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end
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end
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def self.delete_message(message_id)
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self.find(message_id).destroy
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# self.destroy_all "id = #{message_id}"
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end
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def reference_user
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User.find(reply_id)
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end
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def self.reference_message(user_id)
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@user = User.find(user_id)
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message = JournalsForMessage.find_by_sql("select * from journals_for_messages where reply_id = #{@user.id}
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or (jour_type = 'Bid' and jour_id in (select id from bids where author_id = #{@user.id}))")
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message
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end
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def act_as_activity
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if self.jour_type == 'Principal'
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unless self.user_id == self.jour.id && self.user_id != self.reply_id && self.reply_id != 0
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# self.acts << Activity.new(:user_id => self.user_id)
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self.acts << Activity.new(:user_id => self.jour_id)
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end
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elsif self.jour_type == 'Project'
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self.acts << Activity.new(:user_id => self.reply_id)
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elsif self.jour_type == 'Course'
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self.acts << Activity.new(:user_id => self.reply_id)
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else
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end
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end
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def reset_counters!
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self.class.reset_counters!(self)
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end
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def self.reset_counters! journals_for_messages
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# jfm_id = journals_for_messages.id.to_i
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count = find_all_by_m_parent_id(journals_for_messages.m_parent_id).count #(SELECT COUNT(*) FROM #{JournalsForMessage.table_name} WHERE m_parent_id = #{jfm_id} )
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update_all("m_reply_count = #{count.to_i}", ["id = ?", journals_for_messages.m_parent_id])
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end
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end
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