Allow blank=True in BaseConfig (but not Templates)

openwisp · Jan 26, 2016 · e96e262 · e96e262
1 parent 3e7369a
commit e96e262
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/django_netjsonconfig/models/config.py b/django_netjsonconfig/models/config.py
@@ -71,9 +71,10 @@ def get_config(self):
         config preprocessing (skipped for templates):
             * inserts hostname automatically if not defined
         """
+        config = self.config or {}  # might be ``None`` in some corner cases
         if self.__template__:
-            return self.config
-        c = deepcopy(self.config)
+            return config
+        c = deepcopy(config)
         c.setdefault('general', {})
         if 'hostname' not in c['general']:
             c['general']['hostname'] = self.name
@@ -178,6 +179,8 @@ def clean(self):
     class Meta:
         abstract = True
 
+BaseConfig._meta.get_field('config').blank = True
+
 
 class TemplatesMixin(models.Model):
     """