crash--

minecraft/models.py

@@ -15,6 +15,10 @@ class Item(models.Model):
 
     @classmethod
     def get(cls, material, damage=0, data=0):
+      if damage is None:
+        damage = 0
+      if data is None:
+        data = 0
       return cls.objects.get_or_create(material=material, damage=damage,
           data=data)[0]