Symfony2, Doctrine data persistance - doctrine-orm

Question

I have 5 tabels that have relationships.
Table User and Articles have relation:
In User:
/**
* #ORM\OneToMany(targetEntity="Article", mappedBy="author")
*
* #var ArrayCollection $articles
*/
protected $articles;
In Articles:
/**
* #ORM\ManyToOne(targetEntity="User", inversedBy="articles")
*
*/
protected $author;
I create new Article:
$article = new Article();
$article->setTitle("title");
$article->setText("Text test");
$article->setType("image");
$em->persist($article);
$em->flush();
And I add Article to User:
$user->addarticle($article);
$em->persist($user);
$em->flush();
Article is saved in DB, but it don't have any data on field: author_id.
How to make relationship when I add an article to user to automaticaly in save in table Article to be author_id.

Answer 1

Try this schema.
In User:
/**
* #ORM\OneToMany(targetEntity="Article", mappedBy="author")
*/
protected $articles;
In Article:
/**
* #ORM\ManyToOne(targetEntity="User", inversedBy="articles")
* #ORM\JoinColumn(name="author_id", referencedColumnName="id")
*/
protected $author;
Genereate entities, and update schema.
$article = new Article();
$article->setTitle("title");
$article->setText("Text test");
$article->setType("image");
$article->setAuthor($user);
$em->persist($article);
$em->flush();