Handle NULL values in the code element

[aschempp]

tl_content.code is a TEXT field that is nullable, but the HighlighterRuntime does not accept a null value for code highlighting.

[m-vo]

IMHO we should handle this the same as with text in the TextController - so basically $template->set('code', $model->code ?: '');.

Edit: My reasoning is, that, even if the filed can be accidentally null, it should not be null as it is mandatory. So I'd handle this in the controller.

[leofeyer]

Thank you @aschempp.