$this->oracle_sort_spec_fields = [
            'id', 'created'
        ];
 
        // pre queries,
        //$this->pre_queries['all'] = ['All', '1 = 1'];
        //$this->pre_queries['status'] = ['Status = 1', 't1.status_id = 1'];
 
        // enable revisions (needs extra column)
        $this->revision = false;
 
        // Default List View
        $this->defaultAppDisplayMode = 4;
        $this->possibleAppDisplayMode = [0, 1, 2, 4];
 
        // Optimistic Concurrency
        $this->hasOptimisticConcurrency = true;
 
        // index attachments (needs extra table)
        $this->index_attachments = false;
 
        //grant all autocomplete access by default
        $this->autoCompleteAccess = true;
 
        // combine boxlistfields with drilldowns
        $this->mixboxlistFieldsWithDrilldown = true;
 
        $this->BC_DISABLE_FIELD_SANITIZE = ["content"];
 
        // has custom header Area
        //$this->hasHeaderArea = true;
 
        // hide the delete entity button in the boxlist view
        //$this->hideDeleteButtonInBoxlist = true;
 
        // boxlist layout definition ( defaultAppDisplayMode = 0 )
        /*$this->boxlistFields = [
            0 => [
                0 => "name",
            ],

Fatal error: During inheritance of ArrayAccess: Uncaught Whoops\Exception\ErrorException: Return type of Symfony\Component\VarDumper\Cloner\Data::offsetExists($key) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/dcos/core/vendor/symfony/var-dumper/Cloner/Data.php:153 Stack trace: #0 /var/www/dcos/core/vendor/symfony/var-dumper/Cloner/AbstractCloner.php(260): Whoops\Run->handleError() #1 /var/www/dcos/core/vendor/symfony/var-dumper/Cloner/Data.php(20): Symfony\Component\VarDumper\Cloner\AbstractCloner->Symfony\Component\VarDumper\Cloner\{closure}() #2 /var/www/dcos/core/vendor/composer/ClassLoader.php(478): include('...') #3 /var/www/dcos/core/vendor/composer/ClassLoader.php(346): Composer\Autoload\includeFile() #4 /var/www/dcos/core/vendor/symfony/var-dumper/Cloner/AbstractCloner.php(271): Composer\Autoload\ClassLoader->loadClass() #5 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(169): Symfony\Component\VarDumper\Cloner\AbstractCloner->cloneVar() #6 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(208): Whoops\Util\TemplateHelper->dump() #7 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Resources/views/frame_code.html.php(37): Whoops\Util\TemplateHelper->dumpArgs() #8 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(250): require('...') #9 [internal function]: Whoops\Util\TemplateHelper->Whoops\Util\{closure}() #10 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(248): call_user_func() #11 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Resources/views/panel_details.html.php(1): Whoops\Util\TemplateHelper->render() #12 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(250): require('...') #13 [internal function]: Whoops\Util\TemplateHelper->Whoops\Util\{closure}() #14 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(248): call_user_func() #15 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Resources/views/panel_details_outer.html.php(2): Whoops\Util\TemplateHelper->render() #16 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(250): require('...') #17 [internal function]: Whoops\Util\TemplateHelper->Whoops\Util\{closure}() #18 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(248): call_user_func() #19 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Resources/views/layout.html.php(23): Whoops\Util\TemplateHelper->render() #20 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(250): require('...') #21 [internal function]: Whoops\Util\TemplateHelper->Whoops\Util\{closure}() #22 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(248): call_user_func() #23 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Handler/PrettyPageHandler.php(289): Whoops\Util\TemplateHelper->render() #24 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Run.php(340): Whoops\Handler\PrettyPageHandler->handle() #25 [internal function]: Whoops\Run->handleException() #26 {main} in /var/www/dcos/core/vendor/symfony/var-dumper/Cloner/Data.php on line 20

Fatal error: Uncaught Error: Class "Symfony\Component\VarDumper\Cloner\Data" not found in /var/www/dcos/core/vendor/symfony/var-dumper/Cloner/AbstractCloner.php:271 Stack trace: #0 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(169): Symfony\Component\VarDumper\Cloner\AbstractCloner->cloneVar() #1 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(208): Whoops\Util\TemplateHelper->dump() #2 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Resources/views/frame_code.html.php(37): Whoops\Util\TemplateHelper->dumpArgs() #3 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(250): require('...') #4 [internal function]: Whoops\Util\TemplateHelper->Whoops\Util\{closure}() #5 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(248): call_user_func() #6 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Resources/views/panel_details.html.php(1): Whoops\Util\TemplateHelper->render() #7 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(250): require('...') #8 [internal function]: Whoops\Util\TemplateHelper->Whoops\Util\{closure}() #9 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(248): call_user_func() #10 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Resources/views/panel_details_outer.html.php(2): Whoops\Util\TemplateHelper->render() #11 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(250): require('...') #12 [internal function]: Whoops\Util\TemplateHelper->Whoops\Util\{closure}() #13 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(248): call_user_func() #14 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Resources/views/layout.html.php(23): Whoops\Util\TemplateHelper->render() #15 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(250): require('...') #16 [internal function]: Whoops\Util\TemplateHelper->Whoops\Util\{closure}() #17 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Util/TemplateHelper.php(248): call_user_func() #18 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Handler/PrettyPageHandler.php(289): Whoops\Util\TemplateHelper->render() #19 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Run.php(340): Whoops\Handler\PrettyPageHandler->handle() #20 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Run.php(422): Whoops\Run->handleException() #21 /var/www/dcos/core/vendor/filp/whoops/src/Whoops/Run.php(450): Whoops\Run->handleError() #22 [internal function]: Whoops\Run->handleShutdown() #23 {main} thrown in /var/www/dcos/core/vendor/symfony/var-dumper/Cloner/AbstractCloner.php on line 271