1 files changed, 9 insertions, 0 deletions
diff --git a/forms.py b/forms.py
index 59da874..a65d45c 100644
--- a/forms.py
+++ b/forms.py
@@ -31,6 +31,15 @@ class RegisterForm(Form):
         #TODO
         pass
 
+class AdminCreateAccountForm(RegisterForm):
+    def validate_username(form, field):
+        try:
+            g.ldap.get_by_uid(field.data)
+        except NoSuchUserError:
+            return
+        else:
+            raise ValidationError(u'Dieser Benutzername ist schon vergeben')
+
 
 class RegisterCompleteForm(Form):
     password = PasswordField('Passwort', [validators.Required(),