Delete an item from oneToMany relationship

Question

I have the following Gallery entity

class Gallery
{
    /**
     * @var integer
     *
     * @ORM\\Column(name=\"id\", type=\"integer\")
     * @ORM\\Id
            


        

Answer 1

There is article in Symfony2 cookbook about handling this type of situation. As you have OneToMany relationship, you have to remove related objects manually in controller.

Edit: Or you can make use of Doctrine's orphan removal feature.

class Gallery
{
    //...    

    /**
     * @ORM\OneToMany(targetEntity="Photo", mappedBy="gallery", cascade={"persist", "remove"}, orphanRemoval=true)
     */
    private $photos;

    //...

    public function removePhotos($photo)
    {
        $this->photos->remove($photo);
        $photo->setGallery(null);
    }
}