Django model with FK to learner app model Group is displaying options from user admin Group

Question

I have the following models:

learner app

class Group(models.Model):
 short_name = models.CharField(max_length=50) # company acronym
 slug = models.SlugField(default="prepopulated_do_not_enter_text")
 contract = models.ForeignKey(Contract, on_delete=models.CASCADE)
 course = models.ForeignKey(Course, on_delete=models.CASCADE)
 start_date = models.DateField()
 end_date = models.DateField()
 notes = models.TextField(blank=True, null=True)
 class Meta:
 ordering = ["short_name"]
 unique_together = (
 "short_name",
 "contract",
 )

management app I've set up an Invoice model:

from django.db import models
from learner.models import Group
class Invoice(models.Model):
 staff = models.ForeignKey(Staff, on_delete=models.RESTRICT)
 group = models.ForeignKey(Group, on_delete=models.RESTRICT)
 date = models.DateField()
 amount = models.DecimalField(max_digits=7, decimal_places=2)
 note = models.CharField(max_length=500, null=True, blank=True)

When I try to add an invoice instead of the learner groups I'm being offered the user admin Group options:

enter image description here

Can anyone help with what I'm doing wrong. I have the learner group as a FK in other models without issue.

• willeM_ Van Onsem: Do you by any chance import the django.contrib.auth.models.Group in the learner.models module?
• Lisa Higgins: Yes, I do. If that's the issue, any thoughts on how I can differentiate between the two?

Answer 1

In your learner.models you probably somewhere import the Group of the django.contrib.auth.models module:

# learner/models.py
# …
class Group(models.Model):
 # …
from django.contrib.auth.models import Group
# use of Group

your pobably better rename the import of the second one, and rename all occurrences of that:

# learner/models.py
# ...
class Group(models.Model):
 # ...
from django.contrib.auth.models import Group as AuthGroup
# use of AuthGroup (find-replace)

this will also require migrating the database.

• Lisa Higgins: Thank you!! That makes sense - I appreciate you taking the time to help out.