27 lines
949 B
Ruby
27 lines
949 B
Ruby
# frozen_string_literal: true
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# Provides a way to execute nullify behaviour in batches
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# to avoid query timeouts for really big tables
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# Assumes that associations have `dependent: :nullify` statement
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module BatchNullifyDependentAssociations
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extend ActiveSupport::Concern
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class_methods do
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def dependent_associations_to_nullify
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reflect_on_all_associations(:has_many).select { |assoc| assoc.options[:dependent] == :nullify }
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end
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end
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def nullify_dependent_associations_in_batches(exclude: [], batch_size: 100)
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self.class.dependent_associations_to_nullify.each do |association|
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next if association.name.in?(exclude)
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loop do
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# rubocop:disable GitlabSecurity/PublicSend
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update_count = public_send(association.name).limit(batch_size).update_all(association.foreign_key => nil)
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# rubocop:enable GitlabSecurity/PublicSend
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break if update_count < batch_size
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end
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end
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end
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end
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