BaseManager.php

<?php

namespace Foo\Bar\BazBundle\Util;


abstract class BaseManager
{
    protected $em;
    protected $class;

    abstract protected function getRepository();

    public function getClass()
    {
        return $this->class;
    }

    public function getEntityManager()
    {
        return $this->em;
    }

    public function create()
    {
        $class = $this->getClass();

        return new $class();
    }

    public function delete($entity)
    {
        $this->remove($entity);
    }

    protected function remove($entity)
    {
        $this->getEntityManager()->remove($entity);
        $this->getEntityManager()->flush();
    }

    public function findOneBy(Array $fields)
    {
        return $this->getRepository()->findOneBy($fields);
    }

    public function findBy(Array $fields)
    {
        return $this->getRepository()->findBy($fields);
    }

    public function find($id)
    {
        return $this->getRepository()->find($id);
    }

    public function findAll()
    {
        return $this->getRepository()->findAll();
    }

    public function persist($entity)
    {
        return $this->getEntityManager()->persist($entity);
    }

    protected function persistAndFlush($entity)
    {
        $this->getEntityManager()->persist($entity);
        $this->getEntityManager()->flush();
    }

    public function flush($entity)
    {
        return $this->getEntityManager()->flush($entity);
    }

    public function save($entity)
    {
        $this->persistAndFlush($entity);
    }

}


class ArticleManager extends BaseManager
{
    protected $em;
    protected $class;
    protected $eventDispatcher;
    
    public function __construct(EntityManager $em, $class, EventDispatcher $eventDispatcher)
    {
        $this->em = $em;
        $this->class = $em->getClassMetaData($class);
        $this->eventDispatcher = $eventDispatcher;
        $this->class
    }
    
    public function getRepository()
    {
        return $this->em->getRepository('Foo\Bar\BazBundle\Article');
    }
    
    public function saveArticle(Article $article)
    {
        //doing some stuff here
        $this->save($article);
        $this->eventDispatcher->dispatch('foo_bundle.article.saved', new Event());
    }
}

?>