Multi-criteria search in Symfony 3.4 - doctrine

Question

I'm finally working on a project in Symfony 3 and it's really very interesting. I encounter new problems and new questions that I want to share with you.
I work on a search form for publications according to several criteria. (I have 3 fields input text: date, category and keyword).
So I handle publication consisting of a date of creation, linked to a category by oneToMany relation [Publication is the entity owning, each publication to a single category] and having several several Tag [there is a ManyToMany relationship with the Tag entity. The search form allows to search by dateCreation, Category and Tag. On the right of the publication list I have a form to perform the search.
<div>
<span class="titlerecherche">recherche</span>
<div class="formrecherch">
<form action="{{ url('search_english_pub') }}" method="POST" class="form-horizontal" role="form" data-parsley-validate novalidate>
<div class="form_row">
<div class="col-xs-12 col-sm-12">
<input type="text" class="input" name="date" placeholder="Date *" required></div>
</div>
<div class="form_row">
<div class="col-xs-12 col-sm-12"><input type="text" name="categorie" class="input" placeholder="Catégorie *" required></div>
</div>
<div class="form_row">
<div class="col-xs-12 col-sm-12"><input type="text" name="tag" class="input" placeholder="Tag *" required></div>
</div>
<button class="btnForm">Envoyer <i class="icon-long-arrow-right"></i></button>
</form>
</div>
</div>
In my entity I have:
enter image description here

Answer 1

If only you could edit question and provide more details so i can help more
in the mean time try this:
public function searchAction(Request $request)
{
$date = $request->request->get('date');
$category = $request->request->get('category');
$keyword = $request->request->get('keyword');
$em = $this->getDoctrine()->getManager();
$listEnglishs = $em->getRepository('MDWEBInEnglishBundle:InEnglish')
->findBy(array("date" => new \DateTime($date), "category" => $category, "keyword" => $keyword));
return $this->render('MDWEBFrontBundle:InEnglish:list.html.twig',
array('listEnglishs' => $listEnglishs));
}
also add this at the top
use Symfony\Component\HttpFoundation\Request;