# Hack to load json gem first so we can overwrite its to_json. begin require 'json' rescue LoadError end # The JSON gem adds a few modules to Ruby core classes containing :to_json definition, overwriting # their default behavior. That said, we need to define the basic to_json method in all of them, # otherwise they will always use to_json gem implementation, which is backwards incompatible in # several cases (for instance, the JSON implementation for Hash does not work) with inheritance # and consequently classes as ActiveSupport::OrderedHash cannot be serialized to json. [Object, Array, FalseClass, Float, Hash, Integer, NilClass, String, TrueClass].each do |klass| klass.class_eval <<-RUBY, __FILE__, __LINE__ # Dumps object in JSON (JavaScript Object Notation). See www.json.org for more info. def to_json(options = nil) ActiveSupport::JSON.encode(self, options) end RUBY end