[Answer]-How to Fake django.contrib.auth User value for specific user?

Assuming that Table is your model and FKToUser is a foreign key, there are two ways. The first is to set the FKToUser_id attribute to 2 and save the model. The other is to fetch the user and set the FKToUser attribute to the right user model instance.

This is also basically how a foreign key works. The actual column in the database is the FKToUser_id column, and it’s a simple Integer foreign key to an id in another column. Django magic makes it possible to automatically retrieve the right instance by accessing FKToUser, and to set the right value by assigning a model instance to FKToUser.