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testear relación has_and_belongs_to_many
un artículo puede pertenecer y tener muchos artículos (una relación poliamorosa de muchos a muchos) también utilizamos asignación para aprovechar `value=`.
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2 changed files with 65 additions and 12 deletions
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@ -18,6 +18,7 @@ class MetadataHasAndBelongsToMany < MetadataHasMany
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#
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# Buscamos en belongs_to la relación local, si se eliminó hay que
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# quitarla de la relación remota, sino hay que agregarla.
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#
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def save
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# XXX: No usamos super
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self[:value] = sanitize value
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@ -25,27 +26,21 @@ class MetadataHasAndBelongsToMany < MetadataHasMany
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return true unless changed?
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return true unless inverse?
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# XXX: Usamos asignación para aprovechar value= que setea el valor
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# anterior en @value_was
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(had_many - has_many).each do |remove|
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remove[inverse]&.value&.delete post.uuid.value
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remove[inverse].value = remove[inverse].value.reject do |rej|
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rej == post.uuid.value
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end
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end
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(has_many - had_many).each do |add|
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next unless add[inverse]
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next if add[inverse].value.include? post.uuid.value
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add[inverse].value << post.uuid.value
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add[inverse].value = (add[inverse].value.dup << post.uuid.value)
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end
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true
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end
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private
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# Igual que en MetadataRelatedPosts
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# TODO: Mover a un módulo
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def sanitize(uuid)
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super(uuid.map do |u|
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u.to_s.gsub(/[^a-f0-9\-]/i, '')
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end)
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end
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end
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58
test/models/metadata_has_and_belongs_to_many_test.rb
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58
test/models/metadata_has_and_belongs_to_many_test.rb
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@ -0,0 +1,58 @@
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# frozen_string_literal: true
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require 'test_helper'
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require_relative 'metadata_test'
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class MetadataHasAndBelongsManyTest < ActiveSupport::TestCase
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include MetadataTest
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test 'se pueden relacionar artículos' do
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author = @site.posts.create(layout: :author, title: SecureRandom.hex)
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post = @site.posts.create(layout: :post, title: SecureRandom.hex)
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post.authors.value = [author.uuid.value]
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assert post.save
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assert_includes author.posts.has_many, post
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assert_includes post.authors.has_many, author
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end
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test 'se puede eliminar la relación' do
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author = @site.posts.create(layout: :author, title: SecureRandom.hex)
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post = @site.posts.create(layout: :post, title: SecureRandom.hex, authors: [author.uuid.value])
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assert_includes post.authors.value, author.uuid.value
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assert_includes author.posts.value, post.uuid.value
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post.authors.value = []
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ENV['HOLA'] = 'hola'
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assert post.save
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assert_not_includes author.posts.has_many, post
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assert_not_includes post.authors.has_many, author
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assert_includes author.posts.had_many, post
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assert_includes post.authors.had_many, author
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end
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test 'se puede cambiar la relación' do
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author = @site.posts.create(layout: :author, title: SecureRandom.hex)
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post1 = @site.posts.create(layout: :post, title: SecureRandom.hex, authors: [author.uuid.value])
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post2 = @site.posts.create(layout: :post, title: SecureRandom.hex)
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author.posts.value = [post2.uuid.value]
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assert author.save
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assert_not_includes author.posts.has_many, post1
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assert_not_includes post1.authors.has_many, author
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assert_includes author.posts.had_many, post1
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assert_includes post1.authors.had_many, author
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assert_not_includes author.posts.had_many, post2
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assert_not_includes post2.authors.had_many, author
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assert_includes author.posts.has_many, post2
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assert_includes post2.authors.has_many, author
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end
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end
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