Django ModelForm: What is save(commit=False) used for?

by

That’s useful when you get most of your model data from a form, but you need to populate some null=False fields with non-form data.

Saving with commit=False gets you a model object, then you can add your extra data and save it.

This is a good example of that situation.

Here’s the documentation on the save method. Note that if your form includes many-to-many fields, you’ll also want to call form.save_m2m() after saving the model instance.

More Related Contents:

  1. Setting the selected value on a Django forms.ChoiceField
  2. How do I add a Foreign Key Field to a ModelForm in Django?
  3. How can I restrict Django’s GenericForeignKey to a list of models?
  4. Dropdown in Django Model
  5. Django – Overriding the Model.create() method?
  6. Django unique_together with nullable ForeignKey
  7. How to add Check Constraints for Django Model fields?
  8. What does on_delete do on Django models?
  9. Dynamic File Path in Django
  10. Django: Populate user ID when saving a model
  11. Get model’s fields in Django
  12. Can django’s auth_user.username be varchar(75)? How could that be done?
  13. Django form field choices, adding an attribute
  14. How to ‘bulk update’ with Django?
  15. Custom QuerySet and Manager without breaking DRY?
  16. Django: Query using contains each value in a list
  17. How do you serialize a model instance in Django?
  18. Create Custom Error Messages with Model Forms
  19. Django delete FileField
  20. Why does django’s prefetch_related() only work with all() and not filter()?
  21. Django multi-select widget?
  22. ImageField overwrite image file with same name
  23. Django “xxxxxx Object” display customization in admin action sidebar
  24. How to register users in Django REST framework?
  25. Using Django auth UserAdmin for a custom user model
  26. Django : Unable to import model from another App
  27. Django templates: verbose version of a choice
  28. Django: Does prefetch_related() follow reverse relationship lookup?
  29. how to write a query to get find value in a json field in django
  30. Multiple form classes in django generic (class) views

Leave a Comment