From 90b3c1e7f6a086b551e90866e7af03b3bfab67aa Mon Sep 17 00:00:00 2001
From: Daniel Stolt <daniel@ideliverable.com>
Date: Wed, 19 Aug 2015 12:05:57 +0100
Subject: [PATCH] Added unique constraints to ContentItemVersionRecord table.

---
 .../DataMigrations/FrameworkDataMigration.cs             | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/Orchard/ContentManagement/DataMigrations/FrameworkDataMigration.cs b/src/Orchard/ContentManagement/DataMigrations/FrameworkDataMigration.cs
index 1dbd202c8..6432b3a6d 100644
--- a/src/Orchard/ContentManagement/DataMigrations/FrameworkDataMigration.cs
+++ b/src/Orchard/ContentManagement/DataMigrations/FrameworkDataMigration.cs
@@ -64,5 +64,14 @@ namespace Orchard.ContentManagement.DataMigrations {
             return 3;
         }
 
+        public int UpdateFrom3() {
+            SchemaBuilder.AlterTable("ContentItemVersionRecord", table => {
+                table.CreateUniqueConstraint("UC_ContentItemVersionRecord_ContentItemRecordId_Number", "ContentItemRecord_id", "Number");
+                table.CreateUniqueConstraint("UC_ContentItemVersionRecord_ContentItemRecordId_Published", "ContentItemRecord_id", "Published");
+                table.CreateUniqueConstraint("UC_ContentItemVersionRecord_ContentItemRecordId_Latest", "ContentItemRecord_id", "Latest");
+            });
+
+            return 4;
+        }
     }
 }
\ No newline at end of file