Added new SqlServerExtendedStringConverter.

Added new SqlServerExtendedStringConverter to handle SqlHierarchyId,
SqlGeometry, and SqlGeography string conversions.

Author: KevinHoward

src/ServiceStack.OrmLite.SqlServer.Converters/ServiceStack.OrmLite.SqlServer.Converters.csproj

@@ -49,8 +49,10 @@
       <HintPath>..\packages\Microsoft.SqlServer.Types.11.0.2\lib\net20\Microsoft.SqlServer.Types.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="ServiceStack.Text, Version=4.0.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
+    <Reference Include="ServiceStack.Interfaces">
+      <HintPath>..\..\lib\ServiceStack.Interfaces.dll</HintPath>
+    </Reference>
+    <Reference Include="ServiceStack.Text">
       <HintPath>..\..\lib\ServiceStack.Text.dll</HintPath>
     </Reference>
     <Reference Include="System" />
@@ -69,8 +71,13 @@
     <Compile Include="SqlServerGeographyTypeConverter.cs" />
     <Compile Include="SqlServerGeometryTypeConverter.cs" />
     <Compile Include="SqlServerTypeConverter.cs" />
+    <Compile Include="SqlServerExtendedStringConverters.cs" />
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\ServiceStack.OrmLite.SqlServer\ServiceStack.OrmLite.SqlServer.csproj">
+      <Project>{1887dc99-9139-43e3-a7aa-6d74714b3a5d}</Project>
+      <Name>ServiceStack.OrmLite.SqlServer</Name>
+    </ProjectReference>
     <ProjectReference Include="..\ServiceStack.OrmLite\ServiceStack.OrmLite.csproj">
       <Project>{96179ac6-f6f1-40c3-9fdd-4f6582f54c5c}</Project>
       <Name>ServiceStack.OrmLite</Name>

src/ServiceStack.OrmLite.SqlServer.Converters/SqlServerConverters.cs

@@ -17,6 +17,7 @@ public static IOrmLiteDialectProvider Configure(IOrmLiteDialectProvider dialectP
                 LoadAssembly(fileName, libraryPath);
             }
 
+            dialectProvider.RegisterConverter<string>(new SqlServerExtendedStringConverter());
             dialectProvider.RegisterConverter<SqlGeography>(new SqlServerGeographyTypeConverter());
             dialectProvider.RegisterConverter<SqlGeometry>(new SqlServerGeometryTypeConverter());
             dialectProvider.RegisterConverter<SqlHierarchyId>(new SqlServerHierarchyIdTypeConverter());

src/ServiceStack.OrmLite.SqlServer.Converters/SqlServerExtendedStringConverters.cs

@@ -0,0 +1,60 @@
+using System;
+using System.Data;
+using System.Data.SqlClient;
+using ServiceStack.DataAnnotations;
+using Microsoft.SqlServer.Types;
+
+namespace ServiceStack.OrmLite.SqlServer.Converters
+{
+    public class SqlServerExtendedStringConverter : SqlServerStringConverter
+    {
+        public override object FromDbValue(Type fieldType, object value)
+        {
+            if (value is SqlHierarchyId)
+            {
+                var hierarchyId = (SqlHierarchyId)value;
+                return (hierarchyId.IsNull) ? null : hierarchyId.ToString();
+            }
+
+            if (value is SqlGeography)
+            {
+                var geography = (SqlGeography)value;
+                return (geography.IsNull) ? null : geography.ToString();
+            }
+
+            if (value is SqlGeometry)
+            {
+                var geometry = (SqlGeometry)value;
+                return (geometry.IsNull) ? null : geometry.ToString();
+            }
+
+            return base.FromDbValue(fieldType, value);
+        }
+
+        //public override object ToDbValue(Type fieldType, object value)
+        //{
+        //    var str = value?.ToString();
+
+        //    if (fieldType == typeof(SqlHierarchyId))
+        //    {
+        //        return (str == null) ? SqlHierarchyId.Null : SqlHierarchyId.Parse(str);
+        //    }
+
+        //    if (fieldType == typeof(SqlGeography))
+        //    {
+        //        var geography = (SqlGeography)value;
+        //        var srid = geography.STSrid.Value;
+        //        return (str == null) ? SqlGeography.Null : SqlGeography.STGeomFromText(new System.Data.SqlTypes.SqlChars(str), srid);
+        //    }
+
+        //    if (fieldType == typeof(SqlGeometry))
+        //    {
+        //        var geometry = (SqlGeometry)value;
+        //        var srid = geometry.STSrid.Value;
+        //        return (str == null) ? SqlGeometry.Null : SqlGeometry.STGeomFromText(new System.Data.SqlTypes.SqlChars(str), srid);
+        //    }
+
+        //    return base.ToDbValue(fieldType, value);
+        //}
+    }
+}