module Faceted module Model require 'json' require 'active_support/core_ext/hash' # Class methods ============================================================ module ModelClassMethods def build_association_from(field) bare_name = field.gsub(/_id$/, '') if field =~ /_id$/ klass = eval "#{scope}#{bare_name.classify}" fields << bare_name.to_sym define_method :"#{bare_name}" do klass.new(:id => self.send(field)) end end end def create(params={}) obj = self.new(params) obj.save obj end def field(name, args={}) fields << name define_method :"#{name}" do val = instance_variable_get("@#{name}") val.nil? ? args[:default] : val end unless args[:read_only] define_method :"#{name}=" do |val| instance_variable_set("@#{name}", val) end end build_association_from(name.to_s) if name.to_s.include?("id") && ! args[:skip_association] end def fields @fields ||= [:id, :excludes] end def materialize(objects=[], args={}) objects.compact.inject([]) do |a, object| interface = self.new(args) interface.send(:object=, object) interface.send(:initialize_with_object) a << interface end end def scope parent.to_s == "Object" ? "::" : "#{parent.to_s}::" end end end end