method

replace

v3.2.8 - Show latest stable - Class: ActiveRecord::Associations::CollectionAssociation

replace(other_array)

public

Replace this collection with other_array This will perform a diff and delete/add only records that have changed.

# File activerecord/lib/active_record/associations/collection_association.rb, line 307
      def replace(other_array)
        other_array.each { |val| raise_on_type_mismatch(val) }
        original_target = load_target.dup

        if owner.new_record?
          replace_records(other_array, original_target)
        else
          transaction { replace_records(other_array, original_target) }
        end
      end

replace

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