From 944fe1a9dde00a0acfead1787c8f00b1a1600e02 Mon Sep 17 00:00:00 2001
From: j <0x006A@0x2620.org>
Date: Fri, 7 Aug 2015 17:32:17 +0200
Subject: [PATCH] only run migration if we have items

---
 pandora/item/migrations/0006_add_annotation_sequence.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/pandora/item/migrations/0006_add_annotation_sequence.py b/pandora/item/migrations/0006_add_annotation_sequence.py
index cc2c0327..191f4c95 100644
--- a/pandora/item/migrations/0006_add_annotation_sequence.py
+++ b/pandora/item/migrations/0006_add_annotation_sequence.py
@@ -16,9 +16,10 @@ class Migration(SchemaMigration):
         ))
         db.send_create_signal('item', ['AnnotationSequence'])
         import item.models
-        for i in item.models.Item.objects.all():
-            item.models.AnnotationSequence.reset(i)
-        for a in item.models.Annotation.objects.filter(public_id=None): a.save()
+        if item.models.Item.objects.all().count():
+            for i in item.models.Item.objects.all():
+                item.models.AnnotationSequence.reset(i)
+            for a in item.models.Annotation.objects.filter(public_id=None): a.save()
 
     def backwards(self, orm):
         # Deleting model 'AnnotationSequence'