Add basic JSON serializer to AMo
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@ -38,6 +38,10 @@ module ActiveModel
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autoload :TestCase, 'active_model/test_case'
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autoload :Validations, 'active_model/validations'
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autoload :ValidationsRepairHelper, 'active_model/validations_repair_helper'
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module Serializers
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autoload :JSON, 'active_model/serializers/json'
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end
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end
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I18n.load_path << File.dirname(__FILE__) + '/active_model/locale/en.yml'
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38
activemodel/lib/active_model/serializers/json.rb
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38
activemodel/lib/active_model/serializers/json.rb
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@ -0,0 +1,38 @@
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require 'active_support/json'
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require 'active_support/core_ext/class/attribute_accessors'
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require 'active_support/core_ext/hash/except'
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require 'active_support/core_ext/hash/slice'
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module ActiveModel
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module Serializers
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module JSON
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extend ActiveSupport::Concern
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include ActiveModel::Attributes
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included do
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cattr_accessor :include_root_in_json, :instance_writer => false
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end
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def encode_json(encoder)
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options = encoder.options || {}
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hash = if options[:only]
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only = Array.wrap(options[:only]).map { |attr| attr.to_s }
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attributes.slice(*only)
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elsif options[:except]
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except = Array.wrap(options[:except]).map { |attr| attr.to_s }
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attributes.except(*except)
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else
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attributes
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end
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hash = { self.class.model_name.element => hash } if include_root_in_json
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ActiveSupport::JSON.encode(hash)
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end
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def as_json(options = nil)
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self
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end
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end
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end
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end
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64
activemodel/test/cases/json_serialization_test.rb
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64
activemodel/test/cases/json_serialization_test.rb
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@ -0,0 +1,64 @@
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require 'cases/helper'
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class JsonSerializationTest < ActiveModel::TestCase
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class Contact
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extend ActiveModel::Naming
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include ActiveModel::Serializers::JSON
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attr_accessor :name, :age, :created_at, :awesome, :preferences
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end
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def setup
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@contact = Contact.new
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@contact.name = 'Konata Izumi'
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@contact.age = 16
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@contact.created_at = Time.utc(2006, 8, 1)
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@contact.awesome = true
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@contact.preferences = { 'shows' => 'anime' }
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end
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test "should include root in json" do
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begin
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Contact.include_root_in_json = true
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json = @contact.to_json
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assert_match %r{^\{"contact":\{}, json
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assert_match %r{"name":"Konata Izumi"}, json
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assert_match %r{"age":16}, json
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assert json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
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assert_match %r{"awesome":true}, json
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assert_match %r{"preferences":\{"shows":"anime"\}}, json
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ensure
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Contact.include_root_in_json = false
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end
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end
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test "should encode all encodable attributes" do
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json = @contact.to_json
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assert_match %r{"name":"Konata Izumi"}, json
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assert_match %r{"age":16}, json
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assert json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
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assert_match %r{"awesome":true}, json
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assert_match %r{"preferences":\{"shows":"anime"\}}, json
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end
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test "should allow attribute filtering with only" do
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json = @contact.to_json(:only => [:name, :age])
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assert_match %r{"name":"Konata Izumi"}, json
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assert_match %r{"age":16}, json
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assert_no_match %r{"awesome":true}, json
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assert !json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
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assert_no_match %r{"preferences":\{"shows":"anime"\}}, json
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end
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test "should allow attribute filtering with except" do
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json = @contact.to_json(:except => [:name, :age])
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assert_no_match %r{"name":"Konata Izumi"}, json
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assert_no_match %r{"age":16}, json
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assert_match %r{"awesome":true}, json
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assert json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
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assert_match %r{"preferences":\{"shows":"anime"\}}, json
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end
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end
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@ -1,4 +1,5 @@
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require 'active_support/core_ext/module/attribute_accessors'
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require 'active_support/core_ext/module/delegation'
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module ActiveSupport
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# Look for and parse json strings that look like ISO 8601 times.
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@ -4,6 +4,11 @@
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require 'active_support/core_ext/object/instance_variables'
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require 'active_support/deprecation'
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require 'active_support/core_ext/date_time/conversions'
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require 'active_support/core_ext/time/conversions'
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require 'active_support/time_with_zone'
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require 'active_support/values/time_zone'
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# Hack to load json gem first so we can overwrite its to_json.
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begin
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require 'json'
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