Automatically connect signals to custom Django model fields -
i've created custom image field django automatically creates thumbnails , other stuff. from django.db.models.fields.files import imagefieldfile class imagewiththumbsfieldfile(imagefieldfile): def __init__(self, *args, **kwargs): ... now automatically connect post_delete signal whenever such field defined in model. know how connect post_delete signal manually when model defined. there way automatically whenever custom field used? you can in contribute_to_class() method: class imagewiththumbsfieldfile(imagefieldfile): ... def contribute_to_class(self, cls, name, **kwargs): super(imagewiththumbsfieldfile, self).contribute_to_class( cls, name, **kwargs) post_delete.connect(on_delete_callback, sender=cls)
