diff options
Diffstat (limited to 'activemodel/lib/active_model/serializers')
-rw-r--r-- | activemodel/lib/active_model/serializers/json.rb | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/activemodel/lib/active_model/serializers/json.rb b/activemodel/lib/active_model/serializers/json.rb new file mode 100644 index 0000000000..60b5cbe948 --- /dev/null +++ b/activemodel/lib/active_model/serializers/json.rb @@ -0,0 +1,38 @@ +require 'active_support/json' +require 'active_support/core_ext/class/attribute_accessors' +require 'active_support/core_ext/hash/except' +require 'active_support/core_ext/hash/slice' + +module ActiveModel + module Serializers + module JSON + extend ActiveSupport::Concern + include ActiveModel::Attributes + + included do + cattr_accessor :include_root_in_json, :instance_writer => false + end + + def encode_json(encoder) + options = encoder.options || {} + + hash = if options[:only] + only = Array.wrap(options[:only]).map { |attr| attr.to_s } + attributes.slice(*only) + elsif options[:except] + except = Array.wrap(options[:except]).map { |attr| attr.to_s } + attributes.except(*except) + else + attributes + end + + hash = { self.class.model_name.element => hash } if include_root_in_json + ActiveSupport::JSON.encode(hash) + end + + def as_json(options = nil) + self + end + end + end +end |