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collection_serializer.rb
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collection_serializer.rb
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module ActiveModel
class Serializer
class CollectionSerializer
NoSerializerError = Class.new(StandardError)
include Enumerable
delegate :each, to: :@serializers
attr_reader :object, :root
def initialize(resources, options = {})
@root = options[:root]
@object = resources
@serializers = resources.map do |resource|
serializer_context_class = options.fetch(:serializer_context_class, ActiveModel::Serializer)
serializer_class = options.fetch(:serializer) { serializer_context_class.serializer_for(resource) }
if serializer_class.nil?
fail NoSerializerError, "No serializer found for resource: #{resource.inspect}"
else
serializer_class.new(resource, options.except(:serializer))
end
end
end
def json_key
key = root || serializers.first.try(:json_key) || object.try(:name).try(:underscore)
key.try(:pluralize)
end
def paginated?
object.respond_to?(:current_page) &&
object.respond_to?(:total_pages) &&
object.respond_to?(:size)
end
protected
attr_reader :serializers
end
end
end