How to show username in django admin form for the connected model?-CodePudding

I have two models one is user model and another one is cars model.

class User(models.Model):
    id = models.BigAutoField(primary_key=True)
username = models.CharField(max_length=50, verbose_name="User Name")

class Cars(models.Model):
    id = models.BigAutoField(primary_key=True)
    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='cars')

Now on /admin/app/cars/1/change/ page i want to see the username as a normal text in that form below the dropdown of users.

I tried with inline stack but that didn't worked, and throwing error, User has to foreign key to Cars.

CodePudding user response：

The text shown in the admin panel is determined by the __str__ function, so adding something like

def __str__(self):
    return self.username

to your user model should be enough

CodePudding user response：

do this

class Cars(models.Model):
    id = models.BigAutoField(primary_key=True)
    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='cars')
   
   def __str__(self):
       return self.user.username