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Memoize attributes

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This commit is contained in:
Benjamin Fleischer 2015-12-02 17:47:24 -06:00
parent 036604b149
commit cd736e0adf
1 changed files with 3 additions and 3 deletions
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6
lib/active_model/serializer/attributes.rb
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@ -40,8 +40,9 @@ module ActiveModel
# Return the +attributes+ of +object+ as presented
# by the serializer.
def attributes(requested_attrs = nil)
self.class._attribute_mappings.each_with_object({}) do |(key, attribute_mapping), hash|
def attributes(requested_attrs = nil, reload = false)
@attributes = nil if reload
@attributes ||= self.class._attribute_mappings.each_with_object({}) do |(key, attribute_mapping), hash|
next unless requested_attrs.nil? || requested_attrs.include?(key)
hash[key] = attribute_mapping.call(self)
end
@ -65,7 +66,6 @@ module ActiveModel
end
end
# TODO: remove the dynamic method definition
# @example
# class AdminAuthorSerializer < ActiveModel::Serializer
# attributes :id, :recent_edits