Is there any function in Django that tests if a field instance of a model is primary key?

Question

In Django, is there a way (function) to test if a model field is primary key ( pk )?

For instance, my model is:

class Gender(models.Model):
    name = models.CharField(max_length=50, primary_key=True)

    def __str__(self):
        return self.name

Is there a function to test for name being primary key?

Answer 1

You can use get_field from the model meta api , then check the primary_key attribute, which will be True for primary keys.

field_name = 'name'
field = MyModel._meta.get_field(field_name)
field.primary_key