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# frozen_string_literal: true |
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require_relative '../concrete' |
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require_relative '../../path/segment' |
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module AMA |
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module Entity |
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View Code Duplication |
class Mapper |
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class Type |
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module Hardwired |
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# Default Enumerable handler |
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class EnumerableType < Concrete |
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def initialize |
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super(::Enumerable) |
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attribute!(:_value, parameter!(:T), virtual: true) |
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define_factory |
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define_normalizer |
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define_denormalizer |
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define_enumerator |
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define_acceptor |
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define_extractor |
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end |
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private |
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def define_factory |
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self.factory = Object.new.tap do |factory| |
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factory.define_singleton_method(:create) do |*| |
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[] |
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end |
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end |
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end |
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def define_normalizer |
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self.normalizer = lambda do |input, *| |
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input.map(&:itself) |
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end |
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end |
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def define_denormalizer |
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self.denormalizer = lambda do |entity, *| |
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entity |
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end |
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end |
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def define_enumerator |
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self.enumerator = lambda do |entity, type, *| |
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::Enumerator.new do |yielder| |
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attribute = type.attributes[:_value] |
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entity.each_with_index do |value, index| |
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yielder << [attribute, value, Path::Segment.index(index)] |
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end |
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end |
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end |
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end |
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def define_acceptor |
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self.acceptor = lambda do |entity, *| |
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Object.new.tap do |acceptor| |
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acceptor.define_singleton_method(:accept) do |_, val, segment| |
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entity[segment.name] = val |
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end |
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end |
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end |
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end |
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def define_extractor |
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self.extractor = lambda do |object, type, context = nil, *| |
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unless object.is_a?(::Enumerable) |
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message = "Expected enumerable, got #{object.class}" |
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mapping_error(message, context: context) |
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end |
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::Enumerator.new do |yielder| |
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object.each_with_index do |value, index| |
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attribute = type.attributes[:_value] |
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yielder << [attribute, value, Path::Segment.index(index)] |
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end |
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end |
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end |
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end |
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INSTANCE = new |
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end |
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end |
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end |
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end |
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end |
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end |
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ama-team /
ruby-entity-mapper
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