PersistentCollection::clear does not clear the collection

[jtousek]

use Doctrine\Common\Collections\ArrayCollection;

/**
 * @Entity(repositoryClass = "AdminRepository")
 * @Table(name = "user")
 */
class UserEntity extends StateEntity
{

    //...

    /**
     * @ManyToMany(targetEntity = "RoleEntity")
     * @JoinTable(name = "user_role",
     *      joinColumns = {@JoinColumn(name = "user")},
     *      inverseJoinColumns = {@JoinColumn(name = "role")}
     *      )
     * @var Doctrine\Common\Collections\ArrayCollection
     */
    private $roles;

    public function __construct() {
        //...
        $this->roles = new ArrayCollection;
    }

    public function clearRoles() {
        $this->roles->clear();
        if ($this->roles->count() > 0) {
            //THE CONDITION ABOVE SHOULD NEVER BE TRUE, BUT IT IS!!
            //don't know if it's important, but the association between users and roles IS bidirectional
            echo 'ERROR!!';
        }
        return $this;
    }

    //...

}

[beberlei]

Please report this issue on www.doctrine-project.org/jira - i will close this issue tracker here because we dont use it.