app/models/feed_item.rb

   1 class FeedItem < ActiveRecord::Base
   2
   3   def self.in_feed(name)
   4     where('feed_name = ?', name)
   5   end
   6
   7   def self.entitled(title)
   8     where('title = ?', title)
   9   end
  10
  11   validates_presence_of :feed_name, :title, :description
  12   validates_uniqueness_of :title, :scope => :feed_name
  13   validate :feed_name_must_be_legal
  14
  15   def FeedItem.valid_feed_name?(feed_name)
  16     Rack::Utils::escape(feed_name) == feed_name and
  17       Rack::Utils::unescape(feed_name) == feed_name and
  18       feed_name != 'index' and
  19       feed_name != 'show' and
  20       feed_name != 'update' and
  21       feed_name != 'action'
  22   end
  23
  24   private
  25
  26   def feed_name_must_be_legal
  27     unless FeedItem.valid_feed_name?(feed_name)
  28       errors.add(:feed_name, 'is invalid')
  29     end
  30   end
  31 end