TYPO3 9.5 Include a TypoScript File for all Backend pages

I did write a Typo3 Extension called 'locationgallery' with a backend Module. This backend module should use the following TypoScript configuration.

module.tx_locationgallery_web_locationgallerylocationgallerybe {
    view {
        templateRootPaths.0 = EXT:locationgallery/Resources/Private/Backend/Templates/
        partialRootPaths.0 = EXT:locationgallery/Resources/Private/Backend/Partials/
        layoutRootPaths.0 = EXT:locationgallery/Resources/Private/Backend/Layouts/
    }
}

If I now include the static template of 'locationgallery', that was added via ExtensionManagementUtility::addStaticFile, anything works fine on each page where this template is included.

My problem is, that I get the error message

Sorry, the requested view was not found.

The technical reason is: No template was found. ...

if I select a page in the page tree where the static template is not included.

My problem now is that I do not want to include the static template in the root page, but the backend module of 'locationgallery' needs to be usable on all pages.

I did try to include the corresponding parts of the configuration using ExtensionManagementUtility::addPageTSConfig, that is used to add TSConfig to the $GLOBALS['TYPO3_CONF_VARS']['BE']['defaultPageTSconfig'] variable. But this Typoscript is not interpreted before the view tries to find the template. (E.g. it is not interpreted at all during this run, as far as I know, because I found only TemplateService::mergeConstantsFromPageTSconfig and TypoScriptFrontendController::getPagesTSconfig referring to $GLOBALS['TYPO3_CONF_VARS']['BE']['defaultPageTSconfig'].)

I found that powermail archived what I want by using ext_typoscript_setup.typoscript, but this is deprecated according to https://forge.typo3.org/issues/52364.

An additional drawback of this method is that 'ext_typoscript_setup.typoscript' is interpreted independent of backend and frontend mode.

I would like to know if there is any non deprecated method to include some TypoScript for any backend run in Typo3.

Thanks for any suggestions.

Solution

You can split your TS setup into several files to seperate the includes.

Add the following methods in Configuration/TCA/Overrides/sys_template.php

\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addStaticFile(
  'your_ext_key',
  'Configuration/TypoScript/backend_or_however_you_call_it.typoscript',
  'Your label'
);
\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addStaticFile(
  'your_ext_key',
  'Configuration/TypoScript/frontendend_or_however_you_call_it.typoscript',
  'Your label'
);