Add DB Version to About Page (#124)

frontend/src/System/Status/About/About.js

@@ -15,6 +15,7 @@ class About extends Component {
       version,
       isMonoRuntime,
       runtimeVersion,
+      migrationVersion,
       appData,
       startupPath,
       mode
@@ -38,6 +39,11 @@ class About extends Component {
               />
           }
 
+          <DescriptionListItem
+            title="DB Migration"
+            data={migrationVersion}
+          />
+
           <DescriptionListItem
             title="AppData directory"
             data={appData}
@@ -63,6 +69,7 @@ About.propTypes = {
   version: PropTypes.string,
   isMonoRuntime: PropTypes.bool,
   runtimeVersion: PropTypes.string,
+  migrationVersion: PropTypes.number,
   appData: PropTypes.string,
   startupPath: PropTypes.string,
   mode: PropTypes.string

src/Lidarr.Api.V1/System/SystemModule.cs

@@ -1,4 +1,4 @@
-using Nancy;
+using Nancy;
 using Nancy.Routing;
 using NzbDrone.Common.EnvironmentInfo;
 using NzbDrone.Common.Extensions;
@@ -67,6 +67,7 @@ namespace Lidarr.Api.V1.System
                 Branch = _configFileProvider.Branch,
                 Authentication = _configFileProvider.AuthenticationMethod,
                 SqliteVersion = _database.Version,
+                MigrationVersion = _database.Migration,
                 UrlBase = _configFileProvider.UrlBase,
                 RuntimeVersion = _platformInfo.Version,
                 RuntimeName = PlatformInfo.Platform

src/NzbDrone.Core/Datastore/Database.cs

@@ -9,6 +9,7 @@ namespace NzbDrone.Core.Datastore
     {
         IDataMapper GetDataMapper();
         Version Version { get; }
+        int Migration { get; }
         void Vacuum();
     }
 
@@ -39,6 +40,16 @@ namespace NzbDrone.Core.Datastore
             }
         }
 
+        public int Migration
+        {
+            get
+            {
+                var migration = _datamapperFactory()
+                    .ExecuteScalar("SELECT version from VersionInfo ORDER BY version DESC LIMIT 1").ToString();
+                return Convert.ToInt32(migration);
+            }
+        }
+
         public void Vacuum()
         {
             try

src/NzbDrone.Core/Datastore/LogDatabase.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using Marr.Data;
 
 namespace NzbDrone.Core.Datastore
@@ -24,6 +24,8 @@ namespace NzbDrone.Core.Datastore
 
         public Version Version => _database.Version;
 
+        public int Migration => _database.Migration;
+
         public void Vacuum()
         {
             _database.Vacuum();

src/NzbDrone.Core/Datastore/MainDatabase.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using Marr.Data;
 
 namespace NzbDrone.Core.Datastore
@@ -24,6 +24,8 @@ namespace NzbDrone.Core.Datastore
 
         public Version Version => _database.Version;
 
+        public int Migration => _database.Migration;
+
         public void Vacuum()
         {
             _database.Vacuum();