BUG: Missing site attribute in request with TYPO3 12.4.9

[jonakieling]

Hi there,

we encounter an exception with Flux 10.0.8 and TYPO3 12.4.9:

Call to a member function getDefaultLanguage() on null

(null is expected to be a site)

Describe the bug
Any use of LocalizationUtility within a Flux template (e.g. f:translate within a configuration section) will lead to the exception.

Additional context

This change in TYPO3 Core uses the request type to decide how to get a locale and uses the requests site attribute for frontend requests: TYPO3/typo3@490f12697b

This is always creating a frontend request with the site attribute missing:
https://github.com/FluidTYPO3/flux/blob/development/Classes/Builder/RequestBuilder.php#L85

To Reproduce
Steps to reproduce the behavior:

1. Install Flux 10.0.8 and TYPO3 12.4.9
2. Have a provider Extension registered
3. Create a Flux Element with a f:translate ViewHelper in the configuration section
4. Load Page module

[NamelessCoder]

Not to dismiss the problem, but: you should not be using f:translate within Configuration sections - ideally you should rely on the automatic building of field labels, or use full label references with LLL:EXT:... syntax. And in general, you should not be using f:translate in anything that runs in backend context.

[magicsunday]

This also fails for TYPO3 v12.4.10, Flux 10.0.9.

ideally you should rely on the automatic building of field labels

What does this mean?

or use full label references with LLL:EXT:...

This fails with the same error.

For instance:

<flux:field.custom name="settings.Banner.description">
    <div class="alert alert-info">
        <v:l key="LLL:EXT:ext_name/Resources/Private/Language/locallang.xlf:flux.Banner.description"/>
    </div>
</flux:field.custom>

And in general, you should not be using f:translate in anything that runs in backend context.

So what is the recommended way to translate the backend? TYPO3 itself uses f:translate too

[Gitsko]

Hi @NamelessCoder ,

do you see another alternative if I want to use a translated element (f:translate) e.g. with a flux:field.custom element output a hint box for an editor ?