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tag: v3.0.0.beta1
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module ActiveRecord #:nodoc:
module Serialization
extend ActiveSupport::Concern
include ActiveModel::Serializers::JSON
def serializable_hash(options = nil)
options ||= {}
options[:except] = Array.wrap(options[:except]).map { |n| n.to_s }
options[:except] |= Array.wrap(self.class.inheritance_column)
hash = super(options)
serializable_add_includes(options) do |association, records, opts|
hash[association] = records.is_a?(Enumerable) ?
records.map { |r| r.serializable_hash(opts) } :
records.serializable_hash(opts)
end
hash
end
private
# Add associations specified via the <tt>:includes</tt> option.
# Expects a block that takes as arguments:
# +association+ - name of the association
# +records+ - the association record(s) to be serialized
# +opts+ - options for the association records
def serializable_add_includes(options = {})
return unless include_associations = options.delete(:include)
base_only_or_except = { :except => options[:except],
:only => options[:only] }
include_has_options = include_associations.is_a?(Hash)
associations = include_has_options ? include_associations.keys : Array.wrap(include_associations)
for association in associations
records = case self.class.reflect_on_association(association).macro
when :has_many, :has_and_belongs_to_many
send(association).to_a
when :has_one, :belongs_to
send(association)
end
unless records.nil?
association_options = include_has_options ? include_associations[association] : base_only_or_except
opts = options.merge(association_options)
yield(association, records, opts)
end
end
options[:include] = include_associations
end
end
end
require 'active_record/serializers/xml_serializer'
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