controller.php

<?php

namespace App\Controller;

use Cake\Event\Event;

class PostsController extends AppController {

	public $paginate = ['limit' => 5];

	public function beforeFilter(Event $event) {
		$fm = $this
			->Crud
			->listener('view')
			->fields()
				->all($this->Posts)
				->field('is_active')
					->input(['label' => 'Active'])
					->alias('Active')
					->end()
				->field('comment_count')
					->blacklist();

		return parent::beforeFilter($event);
	}

	public function index() {
		$fm = $this->Crud->listener('view')->fields();
		$fm->field('id')->blacklist();

		$this->Crud->on('beforePaginate', function(Event $event) {
			$event->subject->object = $this->Posts->find('search', $this->request->query);
		});

		return $this->Crud->execute();
	}

	public function add() {
		return (new \Crud\Action\AddAction($this))->handle();
	}

}