validate_reflection!() — ActiveRecord::Reflection::MacroReflection

validate_reflection!()

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# File activerecord/lib/active_record/reflection.rb, line 438
        def validate_reflection!
          return unless options[:foreign_key].is_a?(Array)

          message = <<~MSG.squish
            Passing #{options[:foreign_key]} array to :foreign_key option
            on the #{active_record}##{name} association is not supported.
            Use the query_constraints: #{options[:foreign_key]} option instead to represent a composite foreign key.
          MSG
          raise ArgumentError, message
        end

Defined in activerecord/lib/active_record/reflection.rb line 438 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::Reflection::MacroReflection

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