在运行时获取 Django ForeignKey 字段的 related_name

Question

Let's say I have the following Django models:

class Person(models.Model):
    name = models.CharField(max_length=50)

class Pet(models.Model):
    name = models.CharField(max_length=50)
    person = models.ForeignKey(Person, related_name='pets', on_delete=models.CASCADE)

I need to get the string value of related_name for Pet.person at runtime. I can get the related_query_name , which is "pet" but that's slightly different than the related_name , which is "pets" :

print(Pet._meta.get_field("person").related_query_name())
# pet

Looks like the related name is on the Person class, but I'm not sure how to prove it's tied to Pet.person .

print("pets" in [f.name for f in Person._meta.get_fields()])
# True

Is there anyway to do this?

Answer 1

Try this,

related_name = Pet._meta.get_field('person')

related_query_name = Pet._meta.get_field('person')