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Editorial Team
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Asked: 2026-05-26T03:57:28+00:00

I am a bit confused by this message sent by Xcode: Setting the No

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I am a bit confused by this message sent by Xcode:

Setting the No Action Delete Rule on Passenger.taxi is an advanced setting [5]

Parent- and Child-Entity

These are the specifications

  1. When I delete a Taxi instance, it should also delete all its Passenger instances. Current Delete Rule: Cascade
  2. When I delete a Passenger instance, it should just delete that particular instance. Even if it is the last Passenger instance of a Taxi instance. A Taxi can exist without Passengers (1:mc). Current Delete Rule: No Action

What delete rule do I need here to meet the requirements?

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1 Answer

  1. Editorial Team

    Set the delete rule to nullify, which simply nils out the link. “No Action” is a bit weird in that you can think of it as leaving a pointer that does not really exist I’m not sure if that’s what it would really do).

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