Return the item from Item.git, and use Item.material, not Item.item.

minecraft/admin.py

@@ -7,3 +7,4 @@ admin.site.register(models.MOTD)
 admin.site.register(models.PlayerSession)
 admin.site.register(models.MinecraftGroup)
 admin.site.register(models.Ban)
+admin.site.register(models.Item)

minecraft/management/commands/import_items.py

@@ -0,0 +1,13 @@
+from django.core.management.base import BaseCommand
+from minecraft.items import ITEMS
+from minecraft.models import Item
+
+class Command(BaseCommand):
+  help = 'Import default items into the database'
+
+  def handle(self, *args, **options):
+    for i in ITEMS:
+      if i['durability'] == 0:
+        item,created = Item.objects.get_or_create(material=i['id'])
+        if created:
+          print "Imported", item

minecraft/models.py

@@ -13,9 +13,10 @@ class Item(models.Model):
     damage = models.IntegerField(default=0)
     data = models.IntegerField(default=0)
 
-    def get(self, material, damage=0, data=0):
-      return self.objects.get_or_create(material=material, damage=damage,
-          data=data)
+    @classmethod
+    def get(cls, material, damage=0, data=0):
+      return cls.objects.get_or_create(material=material, damage=damage,
+          data=data)[0]
 
     def __unicode__(self):
       return self.name()
@@ -33,7 +34,7 @@ class Item(models.Model):
     @property
     def metadata(self):
         for i in ITEMS:
-          if i['id'] == self.item:
+          if i['id'] == self.material:
             return i;
 
 class MinecraftProfile(models.Model):