Chris@909: # Rails <2.x doesn't define #except
Chris@909: class Hash #:nodoc:
Chris@909:   # Returns a new hash without the given keys.
Chris@909:   def except(*keys)
Chris@909:     clone.except!(*keys)
Chris@909:   end unless method_defined?(:except)
Chris@909: 
Chris@909:   # Replaces the hash without the given keys.
Chris@909:   def except!(*keys)
Chris@909:     keys.map! { |key| convert_key(key) } if respond_to?(:convert_key)
Chris@909:     keys.each { |key| delete(key) }
Chris@909:     self
Chris@909:   end unless method_defined?(:except!)
Chris@909: end
Chris@909: 
Chris@909: # NamedScope is new to Rails 2.1
Chris@909: unless defined? ActiveRecord::NamedScope
Chris@909:   require 'awesome_nested_set/named_scope'
Chris@909:   ActiveRecord::Base.class_eval do
Chris@909:     include CollectiveIdea::NamedScope
Chris@909:   end
Chris@909: end
Chris@909: 
Chris@909: # Rails 1.2.x doesn't define #quoted_table_name
Chris@909: class ActiveRecord::Base  #:nodoc:
Chris@909:   def self.quoted_table_name
Chris@909:     self.connection.quote_column_name(self.table_name)
Chris@909:   end unless methods.include?('quoted_table_name')
Chris@909: end