netbox/netbox/utilities/relations.py

from django.db.models import ManyToOneRel

__all__ = (
    'get_related_models',
)


def get_related_models(model, ordered=True):
    """
    Return a list of all models which have a ForeignKey to the given model and the name of the field. For example,
    `get_related_models(Tenant)` will return all models which have a ForeignKey relationship to Tenant.
    """
    related_models = [
        (field.related_model, field.remote_field.name)
        for field in model._meta.related_objects
        if type(field) is ManyToOneRel
    ]

    if ordered:
        return sorted(related_models, key=lambda x: x[0]._meta.verbose_name.lower())

    return related_models