def photo_is_addable(role_related_obj, associated_model):
'''
photo_is_addable(role_related_obj, associated_model) returns
True if a user possessing role_related_obj can add a photo
to the associated_model, False otherwise.
role_related_obj may be a role or an instance user.
associated_model may be a model class or instance of a model.
'''
AssociatedClass = _get_associated_model_class(associated_model)
PhotoClass = TreePhoto if AssociatedClass == Tree else MapFeaturePhoto
codename = Role.permission_codename(AssociatedClass, 'add', photo=True)
role = _get_role_from_related_object(role_related_obj)
return role and role.has_permission(codename, PhotoClass) or False
def photo_is_addable(role_related_obj, associated_model):
'''
photo_is_addable(role_related_obj, associated_model) returns
True if a user possessing role_related_obj can add a photo
to the associated_model, False otherwise.
role_related_obj may be a role or an instance user.
associated_model may be a model class or instance of a model.
'''
AssociatedClass = _get_associated_model_class(associated_model)
PhotoClass = TreePhoto if AssociatedClass == Tree else MapFeaturePhoto
codename = Role.permission_codename(AssociatedClass, 'add', photo=True)
role = _get_role_from_related_object(role_related_obj)
return role and role.has_permission(codename, PhotoClass) or False
