Added a admin action to cleanup personal data from inactive members.

src/membership/models.py

@@ -7,8 +7,8 @@ from os import path
 
 from django.conf import settings
 from django.contrib.auth.models import AbstractUser
-from django.urls import reverse
 from django.db import models
+from django.urls import reverse
 from django.utils import timezone
 from django.utils.translation import ugettext as _
 from easy_thumbnails.fields import ThumbnailerImageField
@@ -150,7 +150,7 @@ class Membership(AbstractUser):
         max_length=1,
         choices=GENDER_CHOICES,
         blank=True,
-        null=True
+        null=True,
     )
     website = models.URLField(blank=True)
     avatar = ThumbnailerImageField(
@@ -206,8 +206,10 @@ class Membership(AbstractUser):
         help_text=_('This person has paid the membership fee.')
     )
 
-    # comment = models.TextField(blank=True)
-    # objects = MembershipManager()
+    nullable_personal_data = (
+    'gender', 'birthday', 'telephone', 'street_name', 'post_code', 'city')
+    blankable_personal_data = (
+    'email', 'password', 'first_name', 'last_name', 'website',)
 
     class Meta(object):
         """To manage object ordering and dispalynames on the admin interface."""