CODEWITHSUNDEEP
djangodjango-models
Lenic
Lenic

Reputation: 1

How to make changes to database(sqlite) after first migration in Django?

I'm new to Django development and I'm currently following a tutorial to make a blog app. During the tutorial, there is a step to create a function to allow new user use deafult.jpg as their avatar.

However, I had a typo there. Instead of typing 'default.jpg', I typed 'default.jpb'.

Then I migrated into the database. Therefore, when I run the server and try it out, new users who have not set their avatar is using "default.jpb" instead of "default.jpg".

Now, how can I change the database to use the right definition?

After I found the problem, I corrected my typo in my model and then used the following command:

python3 manage.py makemigrations (no changes detected)
python3 manage.py migrate (no migrations to apply)

then, I decided to delete the migrations in my project then makemigrations again, and I realized that I couldn't make changes that already inside my database.

    from django.db import models
    from django.contrib.auth.models import User

    # Create your models here.

    class Profile(models.Model):
        user = models.OneToOneField(User, on_delete=models.CASCADE)
        image = models.ImageField(default='default.jpg',     upload_to='profile_pics')

        def __str__(self):
            return f'{self.user.username} Profile'

I expect new users who have not set their avatar is using default.jpg that located in my project.

Upvotes: 0

Views: 423

Answers (2)

Krupal Purohit
Krupal Purohit

Reputation: 61

run python3 manage.py makemigrations profile and then run python3 manage.py migrate this will solve the issue

Upvotes: 0

HenryM
HenryM

Reputation: 5793

The problem is you deleted the migrations files. This means when you run makemigrations again it will have name it as 001.... BUT the database will still have a record of migrating that file in django_migrations.

Either undelete the deleted migrations and run makemigrations then migrate OR edit your database and remove the migrations that you've deleted from django_migrations

Upvotes: 1

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