Fixed ResolveForeignKeys:

Changed generic creation to reflective generation of new object
Fixed loading himself

Database-Attribute_System/Attributes/DbObject.cs

@@ -13,6 +13,7 @@ namespace eu.railduction.netcore.dll.Database_Attribute_System.Attributes
         public string _tableName;
 
         public Type parentClassType;
+        public ConstructorInfo parentCInfo;
 
         // All childrenAttributes
         public List<BaseAttribute> baseAttributes = new List<BaseAttribute>() { };
@@ -35,6 +36,8 @@ namespace eu.railduction.netcore.dll.Database_Attribute_System.Attributes
         public void Init(Type classType)
         {
             this.parentClassType = classType;
+            parentCInfo = classType.GetConstructor(Type.EmptyTypes);
+
             this._tableName = this._tableName ?? classType.Name;    // If no alternative table-name is specified, use the class-name
 
             // Iterate thru all fields

Database-Attribute_System/ClassAction.cs

@@ -104,14 +104,14 @@ namespace eu.railduction.netcore.dll.Database_Attribute_System
         }
         public static T GetByPrimaryKey<T>(Type classType, Dictionary<string, object> primaryKeyData, Func<string, List<Dictionary<string, object>>> queryExecutor) where T: new()
         {
-            // Create new empty object
-            T obj = new T();
-
             // Read dbObject-attribute
             DbObject dbObject = ClassAction.Init(classType);
 
             if (dbObject.primaryKeyAttributes.Count < 1) throw new InvalidOperationException($"No primaryKey found in '{classType.Name}'");
 
+            // Create new empty object
+            T obj = (T)dbObject.parentCInfo.Invoke(null);
+
             // iterate thru them to check and fill object
             foreach (DbPrimaryKey primaryKeyAtt in dbObject.primaryKeyAttributes)
             {
@@ -301,7 +301,7 @@ namespace eu.railduction.netcore.dll.Database_Attribute_System
                 if(foreignObject_value == null)
                 {
                     // Resolve it
-                    foreignObject_value = GetByPrimaryKey<T>(classType, foreignObjectAtt.foreignKeyAttribute.parentField.GetValue(classObject), queryExecutor);
+                    foreignObject_value = GetByPrimaryKey<T>(foreignObjectAtt.foreignObjectType, foreignObjectAtt.foreignKeyAttribute.parentField.GetValue(classObject), queryExecutor);
                     foreignObjectAtt.parentField.SetValue(classObject, foreignObject_value);    // Set the value
 
                     // Now scan the just resolved class to be able to set myself