*(minor): small refactor

passbook/factors/password/forms.py

@@ -0,0 +1,33 @@
+"""passbook administration forms"""
+from django import forms
+from django.conf import settings
+from django.contrib.admin.widgets import FilteredSelectMultiple
+from django.utils.translation import gettext as _
+
+from passbook.factors.forms import GENERAL_FIELDS
+from passbook.factors.password.models import PasswordFactor
+from passbook.lib.utils.reflection import path_to_class
+
+
+def get_authentication_backends():
+    """Return all available authentication backends as tuple set"""
+    for backend in settings.AUTHENTICATION_BACKENDS:
+        klass = path_to_class(backend)
+        yield backend, getattr(klass(), 'name', '%s (%s)' % (klass.__name__, klass.__module__))
+
+
+class PasswordFactorForm(forms.ModelForm):
+    """Form to create/edit Password Factors"""
+
+    class Meta:
+
+        model = PasswordFactor
+        fields = GENERAL_FIELDS + ['backends', 'password_policies']
+        widgets = {
+            'name': forms.TextInput(),
+            'order': forms.NumberInput(),
+            'policies': FilteredSelectMultiple(_('policies'), False),
+            'backends': FilteredSelectMultiple(_('backends'), False,
+                                               choices=get_authentication_backends()),
+            'password_policies': FilteredSelectMultiple(_('password policies'), False),
+        }