Merge pull request #259 from jarroda/master

Suggest fix for #258

Author: mythz

src/ServiceStack.OrmLite/OrmLiteDialectProviderBase.cs

@@ -481,7 +481,8 @@ public virtual string ToInsertRowStatement(object objWithProperties, IList<strin
             var modelDef = objWithProperties.GetType().GetModelDefinition();
 
             foreach (var fieldDef in modelDef.FieldDefinitions)
-            {
+            {
+                if (fieldDef.IsComputed) continue;
                 if (fieldDef.AutoIncrement) continue;
                 //insertFields contains Property "Name" of fields to insert ( that's how expressions work )
                 if (insertFields.Count > 0 && !insertFields.Contains(fieldDef.Name)) continue;
@@ -628,7 +629,9 @@ public virtual string ToUpdateRowStatement(object objWithProperties, IList<strin
             var modelDef = objWithProperties.GetType().GetModelDefinition();
 
             foreach (var fieldDef in modelDef.FieldDefinitions)
-            {
+            {
+                if (fieldDef.IsComputed) continue;
+
                 try
                 {
                     if (fieldDef.IsPrimaryKey && updateFields.Count == 0)