app/models/feed_item.rb

   1 class FeedItem < ActiveRecord::Base
   2
   3   # require 'cgi' # needed for url decoding
   4
   5   validates_presence_of :feed_name, :title, :description
   6   validates_uniqueness_of :title, :scope => :feed_name
   7   validate :feed_name_must_be_legal
   8
   9   def FeedItem.valid_feed_name?(feed_name)
  10     Rack::Utils::escape(feed_name) == feed_name and
  11       Rack::Utils::unescape(feed_name) == feed_name and
  12       feed_name != 'index' and
  13       feed_name != 'show' and
  14       feed_name != 'update' and
  15       feed_name != 'action'
  16   end
  17
  18   private
  19
  20   def feed_name_must_be_legal
  21     unless FeedItem.valid_feed_name?(feed_name)
  22       errors.add(:feed_name, 'is an invalid feed name')
  23     end
  24   end
  25
  26 end