Django Migrations - How To Make It Forget?

I've been sketching out a new Django app with the runserver dev server running in a background window to tracking network wiring, and briefly had this in my model: class Interface(

Solution 1:

In case you don't need a backwards relation add related_name='+' to your field definition. From the doc:

user = models.ForeignKey(User, related_name='+')

Solution 2:

In your first example:

classConnection(models.Model):
    interface_from = models.ForeignKey(Interface, related_name="connections")
    interface_to = models.ForeignKey(Interface, related_name="connections")

You're telling Django to create two different connections attributes on Interface for the backwards relationships back to Connection, which obviously doesn't work.

In your second example:

classConnection(models.Model):
    interface_from = models.ForeignKey(Interface)
    interface_to = models.ForeignKey(Interface)

You're telling Django to use its default connections_set name for two different attributes for the backwards relationships back to Connection, which also doesn't work.

The fix is to use related_name='+' (as @Ivan said) to disable the backwards relationships completely or two explicitly provide two different related_name attributes so that the backwards relationship attributes' names don't clash.