Register Containers

Note

Every configuration mentioned should be placed in your extension's Configuration/TCA/Overrides/tt_content.php

Register containers with EXT:container alone

With EXT:container you would typically go ahead and register each container seperately or in a foreach loop if you want to register multiple containers, e.g.

\TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(\B13\Container\Tca\Registry::class)->configureContainer(
    (
        new \B13\Container\Tca\ContainerConfiguration(
            'b13-2cols-with-header-container', // CType
            '2 Column Container With Header', // label
            'Some Description of the Container', // description
            [
                [
                    ['name' => 'header', 'colPos' => 200, 'colspan' => 2, 'allowed' => ['CType' => 'header, textmedia, b13-2cols']]
                ],
                [
                    ['name' => 'left side', 'colPos' => 201],
                    ['name' => 'right side', 'colPos' => 202, 'maxitems' => 1]
                ]
            ] // grid configuration
        )
    )
    // override default configurations
    ->setIcon('EXT:container_example/Resources/Public/Icons/b13-2cols-with-header-container.svg')
    ->setSaveAndCloseInNewContentElementWizard(false)
);

(taken from EXT:container_example)

Then you would need to add your fields manually via $GLOBALS['TCA']['tt_content'] or functions like addTcaColumns, addFieldsToPalette, etc. from TYPO3s ExtensionManagementUtility and maybe manipulate the showitem config of your content element.

Register containers with EXT:container-wrap

In your Configuration/TCA/Overrides/tt_content.php create an array with your container configurations:

$containers = [
  'b13-2cols-with-header-container' => [ //CType
      'label' => '2 Column Container With Header', //label
      'description' => 'Some Description of the Container', //description
      'columnConfiguration' => [
          [
              ['name' => 'header', 'colPos' => 200, 'colspan' => 2, 'allowed' => ['CType' => 'header, textmedia, b13-2cols']]
          ],
          [
              ['name' => 'left side', 'colPos' => 201],
              ['name' => 'right side', 'colPos' => 202, 'maxitems' => 1]
          ]
      ], //grid configuration
      //optional keys:
      'icon' => 'EXT:container/Resources/Public/Icons/container-1col.svg',
      'backendTemplate'=>'EXT:lin_container/Resources/Private/Templates/Backend/Container.html',
      'gridTemplate' => 'EXT:container/Resources/Private/Templates/Grid.html',
      'registerInNewContentElementWizard' => true,
      'saveAndCloseInNewContentElementWizard' => true,
      'group' => 'my-container-group', //CType select item group
      'header' => true,
      'bodytext' => false,
      'media' => false,
      'settings' => true,
      'flexform' => false,
  ],
  'my-container-2' => [
      // ...
      // config for my-container-2
      // ...
  ]
];

and call the register function

\TRAW\ContainerWrap\Configuration\Container::registerContainers($containers);

Note

Minimum required config keys are: CType (the array key), label, description and columnConfiguration. Every other configuration has a default value. See Configuration options