Hmm,
I wrote this in my models.py. Errors rased are just for debugging.
class HasUniquePath(object):
def __init__(self, cat_obj, error_message=gettext_lazy("No unique
path!")):
self.cur_cat = cat_obj
self.error_message = error_message
self.always_test = True
def __call__(self, field_data, all_data):
if not field_data:
# check for unique foldername
folder = all_data.get('folder')
raise validators.ValidationError("Only a folder %s no path") %
folder
else:
parent = field_data
folder = all_data.get('folder')
raise validators.ValidationError("A folder %s and a path %s")
% (folder, parent)
class Testcat(models.Model):
title = models.CharField()
folder = models.SlugField(prepopulate_from=('title',))
parent = models.ForeignKey('self', blank=True, null=True,
related_name='child_set', validator_list=[HasUniquePath(self)])
Of course this wil not work because class "HasUniquePath" isn't a
manupulator.
I dont know however how to extend the object's manipulators.
Can yoy please give me a hint?
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