Doctrine DQL Order By Name Field

Question

I am using dql to query my table.

 $dql   = "SELECT p FROM WIC\ListingBundle\Entity\Listing p order by p.name";

I have two tables, Listing and Products.

In the Listing Table I have product_id field which references the Products Table id field.

I want to be able to order my query by the Product Table name field but I also want to keep getting an error each time I do p.name. p.name does NOT exist in the Listing Table, thats why it is throwing the error, I just don't know how to do it properly.

Listing entity:

 /**
 * @ORM\ManyToOne(targetEntity="WIC\ProductBundle\Entity\Product", inversedBy="listings", cascade={"remove","persist"})
 * @ORM\JoinColumn(name="product_id", referencedColumnName="id")
 * @Common\Versioned
 * @Assert\NotBlank()
 */
protected $product;

Answer 1

LEFT JOIN

Try this way:

 $dql   = "SELECT l FROM WIC\ListingBundle\Entity\Listing l LEFT JOIN l.product p order by p.name";