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testear la relación has_many
un artículo puede tener varios artículos, es la inversa de belongs_to también eliminamos la memoización
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2 changed files with 50 additions and 11 deletions
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@ -6,14 +6,6 @@
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# Localmente tenemos un Array de UUIDs. Remotamente tenemos una String
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# apuntando a un Post, que se mantiene actualizado como el actual.
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class MetadataHasMany < MetadataRelatedPosts
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# Invalidar la relación anterior
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def value_was=(new_value)
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@had_many = nil
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@has_many = nil
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super(new_value)
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end
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def validate
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super
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@ -24,14 +16,16 @@ class MetadataHasMany < MetadataRelatedPosts
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# Todos los Post relacionados
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def has_many
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@has_many ||= posts.where(uuid: value)
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return default_value if value.blank?
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posts.where(uuid: value)
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end
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# La relación anterior
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def had_many
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return [] if value_was.blank?
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return default_value if value_was.blank?
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@had_many ||= posts.where(uuid: value_was)
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posts.where(uuid: value_was)
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end
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def inverse?
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45
test/models/metadata_has_many_test.rb
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45
test/models/metadata_has_many_test.rb
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@ -0,0 +1,45 @@
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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 MetadataHasManyTest < ActiveSupport::TestCase
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include MetadataTest
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test 'se pueden relacionar artículos' do
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reply = @site.posts.create(layout: :post, title: SecureRandom.hex)
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post = @site.posts.create(layout: :post, title: SecureRandom.hex, posts: [reply.uuid.value])
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assert_equal post, reply.in_reply_to.belongs_to
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assert_includes post.posts.has_many, reply
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end
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test 'se puede eliminar la relación' do
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reply = @site.posts.create(layout: :post, title: SecureRandom.hex)
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post = @site.posts.create(layout: :post, title: SecureRandom.hex, posts: [reply.uuid.value])
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post.posts.value = []
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post.save
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assert_not_equal post, reply.in_reply_to.belongs_to
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assert_equal post, reply.in_reply_to.belonged_to
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assert_nil reply.in_reply_to.belongs_to
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assert_not_includes post.posts.has_many, reply
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end
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test 'se puede cambiar la relación' do
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reply = @site.posts.create(layout: :post, title: SecureRandom.hex)
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post1 = @site.posts.create(layout: :post, title: SecureRandom.hex, posts: [reply.uuid.value])
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post2 = @site.posts.create(layout: :post, title: SecureRandom.hex)
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reply.in_reply_to.value = post2.uuid.value
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reply.save
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assert_not_equal post1, reply.in_reply_to.belongs_to
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assert_equal post1, reply.in_reply_to.belonged_to
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assert_not_includes post1.posts.has_many, reply
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assert_equal post2, reply.in_reply_to.belongs_to
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assert_includes post2.posts.has_many, reply
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end
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end
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