silverstripe-subsites/code/admin/SubsiteAdmin.php

<?php

namespace SilverStripe\Subsites\Admin;


use SilverStripe\Admin\ModelAdmin;
use SilverStripe\Subsites\Forms\GridFieldSubsiteDetailForm;
use SilverStripe\Subsites\Model\Subsite;


/**
 * Admin interface to manage and create {@link Subsite} instances.
 *
 * @package subsites
 */
class SubsiteAdmin extends ModelAdmin {

	private static $managed_models = array(Subsite::class);

	private static $url_segment = 'subsites';

	private static $menu_title = "Subsites";

	private static $menu_icon = "subsites/images/subsites.png";

	public $showImportForm=false;

	private static $tree_class = Subsite::class;

	public function getEditForm($id = null, $fields = null) {
		$form = parent::getEditForm($id, $fields);

		$grid=$form->Fields()->dataFieldByName(Subsite::class);
		if($grid) {
			$grid->getConfig()->removeComponentsByType('SilverStripe\\Forms\\GridField\\GridFieldDetailForm');
			$grid->getConfig()->addComponent(new GridFieldSubsiteDetailForm());
		}

		return $form;
	}

}