app/models/diary_comment.rb

   1 class DiaryComment < ActiveRecord::Base
   2   belongs_to :user
   3   belongs_to :diary_entry
   4
   5   validates_presence_of :body
   6   validates_associated :diary_entry
   7
   8   after_save :spam_check
   9
  10   def body
  11     RichText.new(read_attribute(:body_format), read_attribute(:body))
  12   end
  13
  14   def digest
  15     md5 = Digest::MD5.new
  16     md5 << diary_entry_id.to_s
  17     md5 << user_id.to_s
  18     md5 << created_at.xmlschema
  19     md5 << body
  20     md5.hexdigest
  21   end
  22
  23   private
  24
  25   def spam_check
  26     user.spam_check
  27   end
  28 end