Read only (immutable) relationships

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• Problem/bug report.
• [ x ] Feature request.
• Request for support. Note: Please try to avoid submitting issues for support requests. Use Gitter instead.

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• I've searched for an existing issue.
• I've asked my question on Gitter and have not received a satisfactory answer.
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• The feature I'm asking for is compliant with the JSON:API spec.

Description

Features:

As an engineer I would like to add has_many or has_one relations which are read only. To accomplish this on the current implementation the following code is used in the resource file.

has_many :cars

def cars=(_cars); end

Beginne in der Ressourcenimplementierung, die has_many- und has_one-Deklarationen verarbeitet, und verwende die Beispiel-Ressourcendefinition als Einstiegspunkt. Verfolge, wie Relationship-Writer generiert oder aufgerufen werden, füge anschließend deklarative Unterstützung für schreibgeschützte Relationships hinzu und finde die relevanten Relationship-Tests, um zu überprüfen, dass der Workaround mit dem benutzerdefinierten Setter nicht mehr erforderlich ist.