Use StringSerializer for serializing enums

Author: mythz

src/ServiceStack.OrmLite/OrmLiteDialectProviderBase.cs

@@ -752,11 +752,9 @@ protected virtual object GetValue<T>(FieldDefinition fieldDef, object obj)
                 if (fieldDef.FieldType.IsEnum)
                 {
                     var enumValue = OrmLiteConfig.DialectProvider.StringSerializer.SerializeToString(value);
-                    return !string.IsNullOrEmpty(enumValue)
+                    return enumValue != null
                         ? enumValue.Trim('"')
-                        : fieldDef.IsNullable 
-                            ? null 
-                            : fieldDef.FieldType.GetDefaultValue();
+                        : null;
                 }
                 if (fieldDef.FieldType == typeof(TimeSpan))
                 {
@@ -1368,6 +1366,14 @@ public virtual string GetQuotedValue(object value, Type fieldType)
             if (fieldType == typeof(TimeSpan))
                 return ((TimeSpan)value).Ticks.ToString(CultureInfo.InvariantCulture);
 
+            if (fieldType.IsEnum)
+            {
+                var enumValue = dialectProvider.StringSerializer.SerializeToString(value);
+                return enumValue != null
+                    ? dialectProvider.GetQuotedValue(enumValue.Trim('"'))
+                    : null;
+            }
+ 
             return ShouldQuoteValue(fieldType)
                     ? dialectProvider.GetQuotedValue(value.ToString())
                     : value.ToString();

tests/ServiceStack.OrmLite.Tests/OrmLiteTestBase.cs

@@ -70,7 +70,7 @@ protected void CreateNewDatabase()
 				ConnectionString = GetFileConnectionString();
 		}
 
-        public Dialect Dialect = Dialect.Sqlite;
+        public Dialect Dialect = Dialect.SqlServer;
 
         [TestFixtureSetUp]
         public void TestFixtureSetUp()