method
delete_records
v7.0.0 -
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Class: ActiveRecord::Associations::HasManyThroughAssociation
delete_records(records, method)
private
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# File activerecord/lib/active_record/associations/has_many_through_association.rb, line 130 def delete_records(records, method) ensure_not_nested scope = through_association.scope scope.where! construct_join_attributes(*records) scope = scope.where(through_scope_attributes) case method when :destroy if scope.klass.primary_key count = scope.destroy_all.count(&:destroyed?) else scope.each(&:_run_destroy_callbacks) count = scope.delete_all end when :nullify count = scope.update_all(source_reflection.foreign_key => nil) else count = scope.delete_all end delete_through_records(records) if source_reflection.options[:counter_cache] && method != :destroy counter = source_reflection.counter_cache_column klass.decrement_counter counter, records.map(&:id) end if through_reflection.collection? && update_through_counter?(method) update_counter(-count, through_reflection) else update_counter(-count) end count end