Let's say I have two entities in my Symfony2 project : Category
and Article
(a category having many articles).
In my CategoryRepository
, I have this method:
findAllDummy(){
return $this->createQueryBuilder('c')
->leftJoin('c.Articles a')
->getQuery()->getResult();
}
If I remember well, in Symfony1.4 (and the corresponding version of Doctrine), the returned objects would have their 'articles' attribute filled by the corresponding Article
objects.
Now, in Symfony2, Proxy objects are returned.
So if I loop through a specific category's articles, As many queries as iterations will be executed.
foreach($category->getArticles() as $article){
echo $article->getDoctrine()
->getRepository('')getTitle();
}
I understand this is Doctrine2.1's default lazy loading behavior.
Question 1: how is this a better solution? N queries instead of 1.
I tried to force eager loading by doing the following:
findAllDummy(){
return $this->createQueryBuilder('c')
->leftJoin('c.articles a')
->getQuery()
->setFetchMode('Category', 'articles', 'EAGER')
->getResult();
}
But the result remains the same.
Question 2: how to force eager loading in Doctrine2?