If you use Codolex entities in regular Delphi code you will see that all entities in Codolex are of type TCodolexField, for example TCodolexField<Integer>. The following functions are available for a TCodolexField (in this example, a TCodolexField<string>
For exporting data, there is an option how null-able fields should be handled.
It contains 3 options, null, 0 or '' values, or exclude from the JSON.
