Adds custom mapper for SqlCe for Image column, hopefully tests pass now.

src/Umbraco.Core/Persistence/SqlCeImageMapper.cs

@@ -0,0 +1,59 @@
+using System;
+using System.Data;
+using System.Data.Common;
+using System.Data.SqlServerCe;
+using System.Linq;
+using System.Reflection;
+using NPoco;
+using Umbraco.Core.Composing;
+
+namespace Umbraco.Core.Persistence
+{
+    /// <summary>
+    /// Custom NPoco mapper for SqlCe
+    /// </summary>
+    /// <remarks>
+    /// Work arounds to handle special columns
+    /// </remarks>
+    internal class SqlCeImageMapper : DefaultMapper
+    {
+        public override Func<object, object> GetToDbConverter(Type destType, MemberInfo sourceMemberInfo)
+        {
+            if (sourceMemberInfo.GetMemberInfoType() == typeof(byte[]))
+            {
+                return x =>
+                {
+                    var pd = Current.SqlContext.PocoDataFactory.ForType(sourceMemberInfo.DeclaringType);
+                    if (pd == null) return null;
+                    var col = pd.AllColumns.FirstOrDefault(x => x.MemberInfoData.MemberInfo == sourceMemberInfo);
+                    if (col == null) return null;
+
+                    return new SqlCeParameter
+                    {
+                        SqlDbType = SqlDbType.Image,
+                        Value = x ?? Array.Empty<byte>()
+                    };
+                };
+            }
+            return base.GetToDbConverter(destType, sourceMemberInfo);
+        }
+
+        public override Func<object, object> GetParameterConverter(DbCommand dbCommand, Type sourceType)
+        {
+            if (sourceType == typeof(byte[]))
+            {
+                return x =>
+                {
+                    var param = new SqlCeParameter
+                    {
+                        SqlDbType = SqlDbType.Image,
+                        Value = x
+                    };
+                    return param;
+                };
+
+            }
+            return base.GetParameterConverter(dbCommand, sourceType);
+        }
+    }
+}

src/Umbraco.Core/Persistence/UmbracoDatabase.cs

@@ -10,6 +10,7 @@ using Umbraco.Core.Persistence.FaultHandling;
 
 namespace Umbraco.Core.Persistence
 {
+
     /// <summary>
     /// Extends NPoco Database for Umbraco.
     /// </summary>
@@ -38,14 +39,10 @@ namespace Umbraco.Core.Persistence
             : base(connectionString, sqlContext.DatabaseType, provider, sqlContext.SqlSyntax.DefaultIsolationLevel)
         {
             SqlContext = sqlContext;
-
             _logger = logger;
             _connectionRetryPolicy = connectionRetryPolicy;
             _commandRetryPolicy = commandRetryPolicy;
-
-            EnableSqlTrace = EnableSqlTraceDefault;
-
-            NPocoDatabaseExtensions.ConfigureNPocoBulkExtensions();
+            Init();
         }
 
         /// <summary>
@@ -57,10 +54,17 @@ namespace Umbraco.Core.Persistence
         {
             SqlContext = sqlContext;
             _logger = logger;
+            Init();
+        }
 
+        private void Init()
+        {
             EnableSqlTrace = EnableSqlTraceDefault;
-
             NPocoDatabaseExtensions.ConfigureNPocoBulkExtensions();
+            if (SqlContext.DatabaseType == DatabaseType.SQLCe)
+            {
+                Mappers.Add(new SqlCeImageMapper());
+            }
         }
 
         #endregion
@@ -257,5 +261,6 @@ namespace Umbraco.Core.Persistence
         }
 
         #endregion
+
     }
 }

src/Umbraco.Core/Umbraco.Core.csproj

@@ -140,6 +140,7 @@
     <Compile Include="Models\RelationTypeExtensions.cs" />
     <Compile Include="Persistence\Repositories\IInstallationRepository.cs" />
     <Compile Include="Persistence\Repositories\Implement\InstallationRepository.cs" />
+    <Compile Include="Persistence\SqlCeImageMapper.cs" />
     <Compile Include="Serialization\AutoInterningStringConverter.cs" />
     <Compile Include="Serialization\AutoInterningStringKeyCaseInsensitiveDictionaryConverter.cs" />
     <Compile Include="Services\Implement\InstallationService.cs" />

src/Umbraco.Web/PublishedCache/NuCache/PublishedSnapshotService.cs

@@ -1325,7 +1325,7 @@ namespace Umbraco.Web.PublishedCache.NuCache
                 "SET data=@data, dataRaw=@dataRaw, rv=rv+1 WHERE nodeId=@id AND published=@published",
                 new
                 {
-                    dataRaw = dto.RawData,
+                    dataRaw = dto.RawData ?? Array.Empty<byte>(),
                     data = dto.Data,
                     id = dto.NodeId,
                     published = dto.Published