gistfile1.rb

ActiveRecord::Base.send :include, Spock::Base::Filterable


module Spock
  module Base
    module Filterable
      def self.included(base)
        base.extend ClassMethods
      end
      
      module ClassMethods
        
        def my_filter(f)
          f_name, f_arguments = f.to_s.split(':')
          f_arguments = f_arguments.to_s.split(',')
          if f_name && my_available_filters.include?(f_name.to_sym)
            f_arguments.empty? ? send("filter_#{f_name}".to_sym) : self.scopes["filter_#{f_name}".to_sym].call(self, *f_arguments)
          else
            self
          end
        end
        
        def my_available_filters
          self.scopes.keys.map { |m| m.to_s }.select do |m|
            m =~ /^filter_/
          end.map { |m| m[7..-1].to_sym }
        end
        
      end
      
    end
  end
end