bigdir/app/models/journals_for_message.rb

# fq
class JournalsForMessage < ActiveRecord::Base
  attr_accessible :jour_id, :jour_type, :notes, :reply_id, :status, :user_id
  attr_accessor :indice
  validates :notes, presence: true
  belongs_to :jour, :polymorphic => true
  belongs_to :user
  has_many :acts, :class_name => 'Activity', :as => :act, :dependent => :destroy
  has_many :reply_for_journals, :dependent => :destroy
  after_create :act_as_activity #huang
  
  def self.delete_message(message_id)
    self.delete_all "id = #{message_id}"
  end
  
  def reference_user
    User.find(reply_id)
  end
  
  def self.reference_message(user_id)
    @user = User.find(user_id)
    message = JournalsForMessage.find_by_sql("select * from journals_for_messages where reply_id = #{@user.id} or (jour_type = 'Bid' and jour_id in (select id from bids where author_id = #{@user.id}))")
    message 
  end
  
  def act_as_activity
    if self.jour_type == 'Principal' 
      unless self.user_id == self.jour.id &&  self.user_id != self.reply_id && self.reply_id != 0        
        self.acts << Activity.new(:user_id => self.user_id)        
      end    
    end
  end
end