Only Sequence fields have sequences

Author: mythz

src/ServiceStack.OrmLite.SqlServer/SqlServer2012OrmLiteDialectProvider.cs

@@ -54,10 +54,9 @@ public override List<string> SequenceList(Type tableType)
 
             foreach (var fieldDef in modelDef.FieldDefinitions)
             {
-                if (fieldDef.AutoIncrement || !fieldDef.Sequence.IsNullOrEmpty())
+                if (!string.IsNullOrEmpty(fieldDef.Sequence))
                 {
-                    if (gens.IndexOf(fieldDef.Sequence) == -1)
-                        gens.Add(fieldDef.Sequence);
+                    gens.AddIfNotExists(fieldDef.Sequence);
                 }
             }
             return gens;

src/ServiceStack.OrmLite/OrmLiteConfigExtensions.cs

@@ -160,7 +160,7 @@ internal static ModelDefinition GetModelDefinition(this Type modelType)
                     IsReference = referenceAttr != null && propertyType.IsClass,
                     GetValueFn = propertyInfo.CreateGetter(),
                     SetValueFn = propertyInfo.CreateSetter(),
-                    Sequence = sequenceAttr != null ? sequenceAttr.Name : string.Empty,
+                    Sequence = sequenceAttr?.Name,
                     IsComputed = computeAttr != null || computedAttr != null || customSelectAttr != null,
                     ComputeExpression = computeAttr != null ? computeAttr.Expression : string.Empty,
                     CustomSelect = customSelectAttr?.Sql,