There is any way to prevent cascade delete on FK field, without using signal?
Fellipe Henrique
Matthew Pava
Have you checked the arguments for on_delete on ForeignKey?
https://docs.djangoproject.com/en/1.11/ref/models/fields/#arguments
There’s models.SET_NULL, models.SET_DEFAULT, models.DO_NOTHING, etc…
If you need to prevent someone from deleting something, you should use view permissions.
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Fabio C. Barrionuevo da Luz
on django <=1.11, on_delete is optional, and its default value is CASCADE.
after django >- 2.0, it is mandatory to set "on_delete"
https://docs.djangoproject.com/en/1.11/ref/models/fields/#django.db.models.ForeignKey.on_delete
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Palmas - Tocantins - Brasil - América do Sul
Fellipe Henrique
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Matthew Pava
Hi Felipe,
I found this question on Stack Overflow, which seems to provide some insight on how to accomplish what you want.
https://stackoverflow.com/questions/4825815/prevent-delete-in-django-model
Basically, you need to override the delete method on the model and on the QuerySet of the model’s managers. Take a look at the last answer.
Still, I’m curious why setting the on_delete parameter to DO_NOTHING doesn’t work for you. Are you overriding something in your code?
From: django...@googlegroups.com [mailto:django...@googlegroups.com] On Behalf Of Fellipe Henrique
Sent: Wednesday, October 4, 2017 6:36 AM
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Fábio C. Barrionuevo da Luz
Palmas - Tocantins - Brasil - América do Sul
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James Schneider
I read the docs, but doesn't work for me... still delete the record... I looking something directly to model, not using view... there's any way to do that?