djangoorm

how to count the number of cascaded item if ever delete happens in django orm

I want to mass delete in ORM django level but i want to see or simulate the impact of cascaded instance that connected to it. Thanks in advance

Solution

  • After you perform delete() method of Model, you can print returned value of delete() method.

    instance = Model.objects.get(pk=1)
val = instance.delete() # returns tuple object
print(val) # this will give you all information

    Or before you delete something, You can count all related objects (Reverse ForeignKey) save result in variable and then delete.

    Hope, it helps you.