Django – Overriding the Model.create() method?

by

Overriding __init__() would cause code to be executed whenever the python representation of object is instantiated. I don’t know rails, but a :before_created filter sounds to me like it’s code to be executed when the object is created in the database. If you want to execute code when a new object is created in the database, you should override save(), checking if the object has a pk attribute or not. The code would look something like this:

def save(self, *args, **kwargs):
    if not self.pk:
        # This code only happens if the objects is
        # not in the database yet. Otherwise it would
        # have pk
    super(MyModel, self).save(*args, **kwargs)

More Related Contents:

  1. Setting the selected value on a Django forms.ChoiceField
  2. Django ModelForm: What is save(commit=False) used for?
  3. How do I add a Foreign Key Field to a ModelForm in Django?
  4. How can I restrict Django’s GenericForeignKey to a list of models?
  5. Dropdown in Django Model
  6. Django unique_together with nullable ForeignKey
  7. How to add Check Constraints for Django Model fields?
  8. When saving, how can you check if a field has changed?
  9. Django set default form values
  10. Django: How can I protect against concurrent modification of database entries
  11. How to express a One-To-Many relationship in Django?
  12. Django: Set foreign key using integer?
  13. How can I have two foreign keys to the same model in Django?
  14. Putting a django login form on every page
  15. django – get() returned more than one topic
  16. Django: How to get current user in admin forms?
  17. How to add data into ManyToMany field?
  18. Raw SQL queries in Django views
  19. Django model: delete() not triggered
  20. Django forms request.user
  21. Django accessing ManyToMany fields from post_save signal
  22. How to change the file name of an uploaded file in Django?
  23. Django Order By Date, but have “None” at end?
  24. How to add a sortable count column to the Django admin of a model with a many-to-one relation?
  25. Django Forms: pass parameter to form
  26. Password field in Django model
  27. How to limit file types on file uploads for ModelForms with FileFields?
  28. Django: access the parent instance from the Inline model admin
  29. Creating Partial Indexes with Django 1.7
  30. Django – forms.FileField() initial value

Leave a Comment