vendor/rails/activerecord/test/models/reply.rb

   1 require 'models/topic'
   2
   3 class Reply < Topic
   4   named_scope :base
   5
   6   belongs_to :topic, :foreign_key => "parent_id", :counter_cache => true
   7   has_many :replies, :class_name => "SillyReply", :dependent => :destroy, :foreign_key => "parent_id"
   8
   9   validate :errors_on_empty_content
  10   validate_on_create :title_is_wrong_create
  11
  12   attr_accessible :title, :author_name, :author_email_address, :written_on, :content, :last_read
  13
  14   def validate
  15     errors.add("title", "Empty")   unless attribute_present? "title"
  16   end
  17
  18   def errors_on_empty_content
  19     errors.add("content", "Empty") unless attribute_present? "content"
  20   end
  21
  22   def validate_on_create
  23     if attribute_present?("title") && attribute_present?("content") && content == "Mismatch"
  24       errors.add("title", "is Content Mismatch")
  25     end
  26   end
  27
  28   def title_is_wrong_create
  29     errors.add("title", "is Wrong Create") if attribute_present?("title") && title == "Wrong Create"
  30   end
  31
  32   def validate_on_update
  33     errors.add("title", "is Wrong Update") if attribute_present?("title") && title == "Wrong Update"
  34   end
  35 end
  36
  37 class SillyReply < Reply
  38   belongs_to :reply, :foreign_key => "parent_id", :counter_cache => :replies_count
  39 end