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db.models.DO_NOTHING

DO_NOTHING [source]

Take no action. If your database backend enforces referential integrity, this will cause an IntegrityError unless you manually add an SQL ON DELETE constraint to the database field.

Links:

https://docs.djangoproject.com/en/1.10/ref/models/fields/#django.db.models.DO_NOTHING

doc_Django

2016-10-09 18:35:17

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