one: fix typos

one/models.py

@@ -481,19 +481,19 @@ class Instance(models.Model):
         """
         Save image and shut down.
         """
-        imgname = "template-%d-%d" % (self.tempfile.id, self.id)
+        imgname = "template-%d-%d" % (self.template.id, self.id)
         self._update_vm('<DISK id="0"><SAVE_AS name="%s"/></DISK>' % imgname)
         self._change_state("SHUTDOWN")
     def is_save_as_done(self):
         self.update_state()
-        if self.state != DONE:
+        if self.state != 'DONE':
             return false
         Disk.update()
-        imgname = "template-%d-%d" % (self.tempfile.id, self.id)
+        imgname = "template-%d-%d" % (self.template.id, self.id)
         disks = Disk.objects.filter(name=imgname)
         if len(disks) != 1:
             return false
-        self.template.disk_id = disks[1].id
+        self.template.disk_id = disks[0].id
         self.template.save()
         return True