breizhwave

     $this->crud->addField([    // SELECT
                                'label' => 'Category',
                                'type' => 'select2_grouped',//https://github.com/Laravel-Backpack/CRUD/issues/502
                                'name' => 'category_id',
                                'entity' => 'category',
                                'attribute' => 'name',
                                'model' => "Backpack\NewsCRUD\app\Models\Category",
            'group_label_attribute' => 'name',
            'group_entity' => 'Children'
        ]);

yunusga

/* Produces a dump on the state of WordPress when a not found error occurs */
/* useful when debugging permalink issues, rewrite rule trouble, place inside functions.php */

ini_set( 'error_reporting', -1 );
ini_set( 'display_errors', 'On' );

echo '<pre>';

add_action( 'parse_request', 'debug_404_rewrite_dump' );
function debug_404_rewrite_dump( &$wp ) {