ThiloWitt
[TIP]: # ( Provide a general summary of the issue in the title above ^^ ) | Q | A | -------------------- | --- | ModuleStudio Version | [latest git] | Operating System | [Windows] | Zikula Target in Model | [ZK30] | Zikula Version | [3.0.x] | PHP Version | [7.4.x] In the below attached test module, the superclass "MyName" inherits to the entities "MyAddress" and "MySchool". The entities' view tables displays the superclass fields "Last Name" and "First Name". Trying to create a school or an address entry, this error is thrown: ``` ErrorException: Notice: Undefined index: inlineUsage at src/extensions/tariqa/InherritanceTestModule/Form/Handler/MySchool/Base/AbstractEditHandler.php:102 at Tariqa\InherritanceTestModule\Form\Handler\MySchool\Base\AbstractEditHandler->getFormOptions() (src/extensions/tariqa/InherritanceTestModule/Form/Handler/MySchool/Base/AbstractEditHandler.php:82) at Tariqa\InherritanceTestModule\Form\Handler\MySchool\Base\AbstractEditHandler->createForm() (src/extensions/tariqa/InherritanceTestModule/Form/Handler/Common/Base/AbstractEditHandler.php:370) at Tariqa\InherritanceTestModule\Form\Handler\Common\Base\AbstractEditHandler->processForm() (src/extensions/tariqa/InherritanceTestModule/Form/Handler/MySchool/Base/AbstractEditHandler.php:42) at Tariqa\InherritanceTestModule\Form\Handler\MySchool\Base\AbstractEditHandler->processForm() (src/extensions/tariqa/InherritanceTestModule/Controller/Base/AbstractMySchoolController.php:218) at Tariqa\InherritanceTestModule\Controller\Base\AbstractMySchoolController->editInternal() (src/extensions/tariqa/InherritanceTestModule/Controller/MySchoolController.php:187) at Tariqa\InherritanceTestModule\Controller\MySchoolController->editAction() (vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php:157) at Symfony\Component\HttpKernel\HttpKernel->handleRaw() (vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php:79) at Symfony\Component\HttpKernel\HttpKernel->handle() (vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php:196) at Symfony\Component\HttpKernel\Kernel->handle() (public/index.php:35) ``` [InheritanceTest.mostapp.txt](https://github.com/Guite/MostGenerator/files/6060714/InheritanceTest.mostapp.txt)