meetingpoll/models: pass a callable to default. Fixes users won't start new...

meetingpoll/models: pass a callable to default. Fixes users won't start new sessions. Solution given by Markus Tesmer.

meetingpoll/models.py

@@ -10,7 +10,7 @@ import string
 import random
 import jsonfield
 
-def createId(length):
+def createId(length=5):
     firstchar = string.ascii_letters
     c = string.digits + string.ascii_letters
     lastchars = ''.join([random.choice(c) for dummy in xrange(0, length - 1)])
@@ -39,7 +39,7 @@ class Poll(models.Model):
     id = models.CharField(
         primary_key=True,
         max_length=8,
-        default=createId(5))
+        default=createId)
     title = models.CharField(_('Title'), max_length=80)
     pub_date = models.DateField(default=datetime.datetime.now)
     upd_date = models.DateField(auto_now=True)