In Django Shell I can see the Object but I can't Access it.

A simple one this but I couldn't find the answer with a Google search so I thought I'd list it here. 

What I have is a Profile object that links to my User object.  And I'm trying to get the 'image' data from it. 

Using Shell this is what I was doing 

python manage.py shell

from users.models import Profile

profile = Profile.objects.filter(user=1)
profile.image

Which would return me the message.

 'QuerySet' object has no attribute 'image'

However I know its there because when I run

profile.values() 

I can see it.  

The answer is straight forward and you need to do the following to call the specific item that you need. 

profile = Profile.objects.filter(user=1).first()

You'll then be able to user 'profile.image' to return the data. 

django.db.utils.IntegrityError: The row in table ‘%’ with primary key '1' has an invalid foreign key: %.user_id contains a value '1' that does not have a corresponding value in auth_user.id.

This is on a Django / Wagtail project.  Although I think the issue is relevant only to the Django side of it here. 

I was getting this error when running some tests on my APP .

python3 manage.py test tasks

The error :
django.db.utils.IntegrityError: The row in table ‘%’ with primary key '1' has an invalid foreign key: %.user_id contains a value '1' that does not have a corresponding value in auth_user.id.

The offending code :

django models.ForeignKey(User, on_delete=models.CASCADE, default=1)

Here's what I searched when looking for an answer:

Django how to add a default user id to model

Django model foreignKey user pass in default user

Django does not have a corresponding value in auth_user.id


I tried a few different methods to resolve including removing all my migration file and running the migrate commands again .

python3 manage.py makemigrations

Python3 manage.py migrate

What I found worked though was to change my code to the following line ( and then run the above migration commands again )

user = models.ForeignKey(User, on_delete=models.CASCADE, blank=True, null=True)

Wagtail: admin KeyError at /admin/

I recently saw this error after playing around with Page Model Classes.   

To fix this I worked out which Class was at fault and had to remove it and all mentions of it in the 'Migrations' folder.  

Once I did that I could run the following commands again and had regained access to my /admin/ folder 

python manage.py makemigrations
python manage.py migrate
python manage.py runserver

I also renamed my Class to not cause any other possible conflicts.