assign tags to an entry

src/Wallabag/CoreBundle/Controller/TagController.php

@@ -4,9 +4,59 @@ namespace Wallabag\CoreBundle\Controller;
 
 use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
 use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+use Symfony\Component\HttpFoundation\Request;
+use Wallabag\CoreBundle\Form\Type\NewTagType;
+use Wallabag\CoreBundle\Entity\Tag;
+use Wallabag\CoreBundle\Entity\Entry;
 
 class TagController extends Controller
 {
+    /**
+     * @param Request $request
+     *
+     * @Route("/new-tag/{entry}", requirements={"entry" = "\d+"}, name="new_tag")
+     *
+     * @return \Symfony\Component\HttpFoundation\Response
+     */
+    public function addTagFormAction(Request $request, Entry $entry)
+    {
+        $tag = new Tag($this->getUser());
+        $form = $this->createForm(new NewTagType(), $tag);
+        $form->handleRequest($request);
+
+        if ($form->isValid()) {
+            $existingTag = $this->getDoctrine()
+                ->getRepository('WallabagCoreBundle:Tag')
+                ->findOneByLabelAndUserId($tag->getLabel(), $this->getUser()->getId());
+
+            $em = $this->getDoctrine()->getManager();
+
+            if (is_null($existingTag)) {
+                $entry->addTag($tag);
+                $em->persist($tag);
+            } else {
+                if (!$existingTag->hasEntry($entry)) {
+                    $entry->addTag($existingTag);
+                    $em->persist($existingTag);
+                }
+            }
+
+            $em->flush();
+
+            $this->get('session')->getFlashBag()->add(
+                'notice',
+                'Tag added'
+            );
+
+            return $this->redirect($this->generateUrl('view', array('id' => $entry->getId())));
+        }
+
+        return $this->render('WallabagCoreBundle:Tag:new_form.html.twig', array(
+            'form' => $form->createView(),
+            'entry' => $entry,
+        ));
+    }
+
     /**
      * Shows tags for current user.
      *