TYPO3 Core

I can show an example (desktop sharing) if somebody is interested (contact me in slack).

Hi,

I can reproduce this issue in 9.5.14 and I would say it persist in latest taking a look to the code.

Files affected are

/backend/Resources/Private/TypeScript/FormEngine/Element/SlugElement.ts
/backend/Classes/Controller/FormSlugAjaxController.php
/core/Classes/DataHandling/SlugHelper.php

This line should return '/' for the case described in the issue
https://github.com/TYPO3/TYPO3.CMS/blob/master/typo3/sysext/core/Classes/DataHandling/SlugHelper.php#L161

However, is_siteroot is not populated nor in /backend/Classes/Controller/FormSlugAjaxController.php
neither sent in the ajax call done in /backend/Resources/Private/TypeScript/FormEngine/Element/SlugElement.ts

I would say that this could be fixed in SlugHelper.php doing an additional database request if isset( $recordData['is_siteroot'] ) == false if this issue can be reproduced in other scenarios.
If not, populating it in any of the 2 other files involved.

My scenario is slightly different: we have a is_siteroot inside a is_siteroot tree. The slug of the subtree is getting the whole path from the upper level tree instead of returning '/'

I just found an easier fix

https://github.com/TYPO3/TYPO3.CMS/blob/1d11c3131e302360c96fb39ecacee18fd88099b1/typo3/sysext/core/Configuration/TCA/pages.php#L162
'fields' => ['title','is_siteroot']

However, as is_siteroot is a checkbox

<div class="checkbox checkbox-type-toggle">
<input type="checkbox" class="checkbox-input" value="1" data-formengine-input-name="data[pages]³⁰⁸⁹[is_siteroot]" onclick="document.editform['data[pages]³⁰⁸⁹[is_siteroot]'].value=this.checked?(document.editform['data[pages]³⁰⁸⁹[is_siteroot]'].value|1):(document.editform['data[pages]³⁰⁸⁹[is_siteroot]'].value&amp;0);TBE_EDITOR.fieldChanged('pages','3089','is_siteroot','data[pages]³⁰⁸⁹[is_siteroot]');" 1="" id="data_pages_3089_is_siteroot_0_5e851dae5f797895765675">
<label class="checkbox-label" for="data_pages_3089_is_siteroot_0_5e851dae5f797895765675">
<span class="checkbox-label-text"> </span>
</label>
</div>

the SlugElement.ts is not checking if it is checked and then returning always is_siteroot=1

Is this issue related? #89311

Riccardo, yes it is

Patch set 1 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/65116

Patch set 1 for branch 10.4 of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/c/Packages/TYPO3.CMS/+/65192