diff options
Diffstat (limited to 'lib/json/add/rails.rb')
-rw-r--r-- | lib/json/add/rails.rb | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/lib/json/add/rails.rb b/lib/json/add/rails.rb new file mode 100644 index 0000000000..e86ed1aab9 --- /dev/null +++ b/lib/json/add/rails.rb @@ -0,0 +1,58 @@ +# This file contains implementations of rails custom objects for +# serialisation/deserialisation. + +unless Object.const_defined?(:JSON) and ::JSON.const_defined?(:JSON_LOADED) and + ::JSON::JSON_LOADED + require 'json' +end + +class Object + def self.json_create(object) + obj = new + for key, value in object + next if key == 'json_class' + instance_variable_set "@#{key}", value + end + obj + end + + def to_json(*a) + result = { + 'json_class' => self.class.name + } + instance_variables.inject(result) do |r, name| + r[name[1..-1]] = instance_variable_get name + r + end + result.to_json(*a) + end +end + +class Symbol + def to_json(*a) + to_s.to_json(*a) + end +end + +module Enumerable + def to_json(*a) + to_a.to_json(*a) + end +end + +# class Regexp +# def to_json(*) +# inspect +# end +# end +# +# The above rails definition has some problems: +# +# 1. { 'foo' => /bar/ }.to_json # => "{foo: /bar/}" +# This isn't valid JSON, because the regular expression syntax is not +# defined in RFC 4627. (And unquoted strings are disallowed there, too.) +# Though it is valid Javascript. +# +# 2. { 'foo' => /bar/mix }.to_json # => "{foo: /bar/mix}" +# This isn't even valid Javascript. + |