Django: list all reverse relations of a model

Question

I would like my django application to serve a list of any model\'s fields (this will help the GUI build itself).

Imagine the classes (ignore the fact that all field

Answer 1

This was changed (in 1.8 I think) and Olivier's answer doesn't work anymore. According to the docs, the new way is

[f for f in User._meta.get_fields()
    if f.auto_created and not f.concrete]

This includes one-to-one, many-to-one, and many-to-many.

Answer 2

And what about this :

oneToOneFieldNames = [
    field_name 
    for field_name in Item._meta.get_all_field_names() 
    if isinstance(
        getattr(
            Item._meta.get_field_by_name(field_name)[0], 
            'field', 
            None
        ), 
        models.OneToOneField
    )
]

RelatedObject may have a Field attribute for relations. You just have to check if this is a OneToOne field and you can retrieve only what you want

Answer 3

I've found out that there are methods of Model._meta that can give me what I want.

my_model = get_model('app_name','model_name')
# Reverse foreign key relations
reverse_fks = my_model._meta.get_all_related_objects()
# Reverse M2M relations
reverse_m2ms = my_model._meta.get_all_related_many_to_many_objects()

By parsing the content of the relations, I can guess whether the "direct" field was a OneToOneField or whatever.