TD-5638-Added DB snapshot

Author: Auldrin-Possa

DigitalLearningSolutions.Data.Migrations/202508261415_RemoveCustomAdminTitlesAddSupervisorNominatedSupervisor.cs

@@ -2,11 +2,13 @@
 {
     using FluentMigrator;
 
-    [Migration(202508261415)]
-    public class RemoveCustomAdminTitlesAddSupervisorNominatedSupervisor : ForwardOnlyMigration
+    [Migration(202508261415, TransactionBehavior.None)]
+    public class RemoveCustomAdminTitlesAddSupervisorNominatedSupervisor : Migration
     {
         public override void Up()
         {
+            Execute.Sql(Properties.Resources.TD_5638_SnapshotData_UP);
+
             Execute.Sql($@"
                     -- 1. Drop old FK
                     ALTER TABLE [dbo].[SelfAssessmentSupervisorRoles]
@@ -59,5 +61,10 @@ LEFT JOIN SelfAssessmentSupervisorRoles nom
                 "
             );
         }
+
+        public override void Down()
+        {
+            // Intentionally empty. If things go wrong later, we will manually restore the snapshot
+        }
     }
 }

DigitalLearningSolutions.Data.Migrations/Properties/Resources.Designer.cs

@@ -517,4 +517,7 @@
   <data name="TD_5638_Alter_GetCandidateAssessmentResultsById_Up" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>..\Scripts\TD-5638-Alter_GetCandidateAssessmentResultsById_Up.sql;System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089;utf-16</value>
   </data>
+  <data name="TD_5638_SnapshotData_UP" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Scripts\TD-5638-SnapshotData-UP.sql;System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089;Windows-1252</value>
+  </data>
 </root>

DigitalLearningSolutions.Data.Migrations/Properties/Resources.resx

@@ -0,0 +1,10 @@
+DECLARE @dbName NVARCHAR(128) = DB_NAME()
+DECLARE @defaultPath NVARCHAR(500) = CONVERT(NVARCHAR(500), SERVERPROPERTY('InstanceDefaultDataPath'))
+DECLARE @snapshotTime NVARCHAR(12) = FORMAT(GETDATE(), 'yyyyMMddHHmm')
+
+DECLARE @snapSql NVARCHAR(4000) = 'CREATE DATABASE ' + @dbName + '_' + @snapshotTime + ' ON 
+( NAME = mbdbx101, FILENAME = ''' + @defaultPath + @dbName + '_' + @snapshotTime + '''),
+( NAME = mbdbx101files, FILENAME = ''' + @defaultPath + @dbName + '_filestream1_' + @snapshotTime + ''')
+AS SNAPSHOT OF ' + @dbName
+
+EXEC sp_executesql @stmt = @SnapSql