Django MySQL error when creating tables

Question

I am building a django app with a MySQL DB. When I run \'python manage.py migrate\' for the first time, some tables are created well then some errors appear. The error broug

Answer 1

Make sure both foreign key and primary key are of the same type.

Foreign key has to be the same type as the primary key of the foreign table. I had a bigint in the foreign table and django did not know how to create a foreign key that was a bigint automatically.

Investigated why the migration was failing by running: python manage.py sqlmigrate {app_name} {migration_name}

Run this in the workbench and you will see the real error behind the failure.

django.db.utils.IntegrityError: (1215, 'Cannot add foreign key constraint')