TYPO3 Core

In 7.6.22 i can't create new inline child records, if the child TCA does not specify ctrl >enablecolumns > endtime.

When trying to create a new inline record, the BE shows an "Error 500 Internal Server Error" notification and sys_log logs an "Uncaught TYPO3 Exception":

Core: Exception handler (WEB): Uncaught TYPO3 Exception: Unsupported operand types | Error thrown in file /Users/tobias/ownCloud/Projekte/etobi/devdev7/vendor/typo3/cms/typo3/sysext/backend/Classes/Utility/BackendUtility.php in line 1555. Requested URL: http://devdev7.dev/typo3/index.php?ajaxID=%%2Fajax%%2Frecord%%2Finline%%2Fcreate&ajaxToken=d3804bcc88a0d5127fbc06f7bf2bb7e7e48b5d9a

Setup/Steps to reproduce:¶

• TYPO3 7.6.22
• two tables (parent record and child record)
• the parent record have an inline relation to the child records
• both recors are NOT localizable (thus NO TCA ctrl > languageField specified)
• the child record DOES NOT specify enablecolumns > endtime
• create a new parent record
• create a new inline child record
• the Ajax call will throw an "Uncaught TYPO3 Exception: Unsupported operand types"

Analysis:¶

In \TYPO3\CMS\Backend\Controller\FormInlineAjaxController L138-L140:
As $GLOBALS['TCA'][$parent['table']]['ctrl']['languageField']; and $GLOBALS['TCA'][$child['table']]['ctrl']['languageField']; are empty, an array like [0 => ''] will be added to $childData['databaseRow'] with an empty index key.

Later $childData['databaseRow'] will be passed to \TYPO3\CMS\Backend\Utility\BackendUtility::getRecordIconAltText.

At the end of getRecordIconAltText L2025 the records endtime is read. As enablecolumns > endtime is not specified, $ctrl['endtime'] will be empty and $row[$ctrl['endtime']] will return the [0 => ''] array added in FormInlineAjaxController L140.

$row[$ctrl['endtime']] (the [0 => ''] array) will be passed to \TYPO3\CMS\Backend\Utility\BackendUtility::daysUntil.

$delta_t = $tstamp - $GLOBALS['EXEC_TIME']; throws the "Unsupported operand types" as you can't subtract an int from an array.

This bug does not happen for starttime, as $ctrl['starttime'] as this is checked in \TYPO3\CMS\Backend\Utility\BackendUtility L2020

• check if ['ctrl']['languageField'] (both for parent and child) are not empty in \TYPO3\CMS\Backend\Controller\FormInlineAjaxController L136
• check if $ctrl['endtime'] is not empty in \TYPO3\CMS\Backend\Utility\BackendUtility L2025