class BlogMessage < ActiveRecord::Base
  # attr_accessible :title, :body
  attr_accessible :content, :blog_commont_id, :blog_message_type, :viewed, :user_id, :blog_id, :user_operator_id

  belongs_to :blog_comment ,:polymorphic => true
  belongs_to :user
  has_many :message_alls, :class_name => 'MessageAll', :as => :message, :dependent => :destroy

  validates :user_id, presence: true
  validates :blog_id, presence: true
  validates :blog_commont_id, presence: true
  validates :blog_message_type, presence: true
  after_create :add_user_message

  def add_user_message
    if MessageAll.where("message_type = '#{self.class.to_s}' and message_id = '#{self.id}'").first.nil?
      self.message_alls << MessageAll.new(:user_id => self.user_id)
    end
  end
end