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POSymfony2: Error when saving a one-to-many relationship
 

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    <p>I get this error: </p> <blockquote> <p>Integrity constraint violation: 1048 Column 'user_id' cannot be null </p> </blockquote> <p>When I try to save a User with an Address in my controller:</p> <pre><code> $em = $this-&gt;getDoctrine()-&gt;getEntityManager(); $user=new User(); $adr=new Address(); $user-&gt;getAddresses()-&gt;add($adr); /* i add something missing here */ $form =$this-&gt;createForm(new UserForm(),$user); if ('POST' == $request-&gt;getMethod()) { $form-&gt;bindRequest($request); if ($form-&gt;isValid()) { $em-&gt;persist($user); $em-&gt;flush(); return $this-&gt;redirect($this-&gt;generateUrl('homepage')); } } </code></pre> <p>Well, these are my entities classes, User and Address: </p> <pre><code>public class User { /** * @var integer $id * * @ORM\Column(name="id", type="integer", nullable=false) * @ORM\Id * @ORM\GeneratedValue(strategy="IDENTITY") */ private $id; /** * @var Address * * @ORM\OneToMany(targetEntity="Address", mappedBy="user", cascade={"all"}) * @ORM\OrderBy({"zipCode" = "ASC"}) */ protected $addresses; } public class Address{ /** * @var User * * @ORM\ManyToOne(targetEntity="User",inversedBy="addresses") * @ORM\JoinColumns({ * @ORM\JoinColumn(name="user_id", referencedColumnName="id") * }) */ private $user; } </code></pre> <p>in the form class:</p> <pre><code>$builder-&gt;add('addresses', 'collection', array('type' =&gt; new AddressForm())); </code></pre> <p>In the log, there's this message:</p> <pre><code>INSERT INTO user (email, password, salt, is_active, username, description, user_type_id,partner_type_id) VALUES (?, ?, ?, ?, ?, ?, ?, ?){"1":"test@yahoo.ca","2":"ttttt","3":null,"4":null,"5":null,"6":"sdfadf","7":3,"8":9}) </code></pre> <p>And when it try to save the address:</p> <pre><code>INSERT INTO address (Number, voie_name, additional_address, zip_code, city, cedex, created_at, tel, loc_lat, loc_lng, voie_id, user_id) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?) ({"1":"12","2":"asdf","3":"sdfasdf","4":"69001","5":"Lyon 1er","6":null,"7":null,"8":"04 65 46 46 54","9":null,"10":null,"11":4,"12":null}) </code></pre> <p>Pay attention to <code>"12":null</code>, it's odd because Doctrine already saved the user.</p>
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