#146 Record-unshare with default

* adds automatic unsharing with default-only users if entry is recorded

konova/models/object.py

@@ -289,6 +289,8 @@ class RecordableObjectMixin(models.Model):
         from user.models import UserActionLogEntry
         if self.recorded:
             return None
+
+        self.unshare_with_default_users()
         action = UserActionLogEntry.get_recorded_action(user)
         self.recorded = action
         self.save()
@@ -608,6 +610,26 @@ class ShareableObjectMixin(models.Model):
         """
         raise NotImplementedError("Must be implemented in subclasses!")
 
+    def unshare_with_default_users(self):
+        """ Removes all shared users from direct shared access which are only default group users
+
+        Returns:
+
+        """
+        from konova.utils.user_checks import is_default_group_only
+        users = self.shared_users
+        cleaned_users = []
+        default_users = []
+        for user in users:
+            if not is_default_group_only(user):
+                cleaned_users.append(user)
+            else:
+                default_users.append(user)
+        self.share_with_user_list(cleaned_users)
+
+        for user in default_users:
+            celery_send_mail_shared_access_removed.delay(self.identifier, self.title, user.id)
+
 
 class GeoReferencedMixin(models.Model):
     geometry = models.ForeignKey("konova.Geometry", null=True, blank=True, on_delete=models.SET_NULL)