Important roles can now not resign if they are the last in their group.
Fixes Issue 288.
I've decided to do it outside of the logic because if the need arises to kick the last org admin out of a group we need the ability to do so.
Patch by: Lennard de Rijk
Reviewed by: to-be-reviewed
try:
import cPickle as pickle
except ImportError:
import pickle
from django.conf import settings
from django.utils.hashcompat import md5_constructor
from django.forms import BooleanField
def security_hash(request, form, *args):
"""
Calculates a security hash for the given Form instance.
This creates a list of the form field names/values in a deterministic
order, pickles the result with the SECRET_KEY setting, then takes an md5
hash of that.
"""
data = [(bf.name, bf.field.clean(bf.data) or '') for bf in form]
data.extend(args)
data.append(settings.SECRET_KEY)
# Use HIGHEST_PROTOCOL because it's the most efficient. It requires
# Python 2.3, but Django requires 2.3 anyway, so that's OK.
pickled = pickle.dumps(data, pickle.HIGHEST_PROTOCOL)
return md5_constructor(pickled).hexdigest()