I got this following error while trying to add a non-nullable field (description) to an existing model (Category) without specifying a default value.
it is impossible to add a non-nullable field 'description' to category without specifying a default. This is because the database need something to populate existing rows.
Please select a fix:
1) Provide a one-off default now (will be set on all existing rows with a null value for this column)
2) Quit and manually define a default value in models.py
select an option:
![it is impossible to add a non-nullable field 'description'](https://www.infinetsoft.com/Uploads/20240420100552it%20is%20impossible.png)
description=models.TextField(max_length=500,blank=False)UPDATE:
description=models.TextField(max_length=500,blank=False,null=True)
You need to run python manage.py makemigrations followed by python manage.py migrate to apply the changes to your database.
VIDEO GUIDE:
Post your comments / questions
Recent Article
- How to restrict access to the page Access only for logged user in Django
- Migration admin.0001_initial is applied before its dependency admin.0001_initial on database default
- Add or change a related_name argument to the definition for 'auth.User.groups' or 'DriverUser.groups'. -Django ERROR
- Addition of two numbers in django python
- The request was aborted: Could not create SSL/TLS secure channel -Error in Asp.net
- FieldError: Cannot resolve keyword 'id' into field in Django project
- How to hide the ID field from the Django admin?
- ImportError: cannot import name 'url' from 'django.conf.urls' - Django Error
Related Article