2020-07-22 23:35:43 +00:00
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# frozen_string_literal: true
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# La diferencia con MetadataRelatedPosts es que la relación también
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# actualiza los Posts remotos.
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#
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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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# Todos los Post relacionados según la relación remota
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def has_many_remote
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@has_many_remote ||= posts.where(inverse => post.uuid.value)
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end
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# Todos los Post relacionados
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def has_many
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@has_many ||= {}
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@has_many[value.hash.to_s] ||= 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 document.data[name.to_s].blank?
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@had_many ||= posts.where(uuid: document.data[name.to_s])
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end
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def inverse?
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inverse.present?
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end
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# La relación inversa
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#
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# @return [Nil,Symbol]
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def inverse
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layout.metadata.dig(name, 'inverse')&.to_sym
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end
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# Actualizar las relaciones inversas. Hay que buscar la diferencia
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# entre had y has_many.
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def save
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2020-11-09 23:01:27 +00:00
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return true unless changed?
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2020-07-22 23:35:43 +00:00
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self[:value] = sanitize value
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return true unless inverse?
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(had_many - has_many).each do |remove|
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remove[inverse].value = remove[inverse].default_value
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end
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(has_many - had_many).each do |add|
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add[inverse].value = post.uuid.value
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end
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true
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end
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def related_posts?
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true
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end
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def related_methods
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@related_methods ||= %i[has_many had_many].freeze
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end
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private
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def sanitize(sanitizable)
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sanitizable.map do |uuid|
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uuid.gsub(/[^a-f0-9\-]/, '')
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end
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end
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end
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