Added tag deletion from tags list

Fixed #2952

src/Wallabag/CoreBundle/Controller/TagController.php

@@ -222,4 +222,29 @@ class TagController extends Controller
 
         return $this->redirect($this->get('wallabag_core.helper.redirect')->to($request->headers->get('referer'), '', true));
     }
+
+    /**
+     * Delete a given tag for the current user.
+     *
+     * @Route("/tag/delete/{slug}", name="tag_delete")
+     * @ParamConverter("tag", options={"mapping": {"slug": "slug"}})
+     *
+     * @return \Symfony\Component\HttpFoundation\Response
+     */
+    public function removeTagAction(Tag $tag, Request $request) {
+        foreach ($tag->getEntriesByUserId($this->getUser()->getId()) as $entry) {
+            $this->get('wallabag_core.entry_repository')->removeTag($this->getUser()->getId(), $tag);
+        }
+
+        // remove orphan tag in case no entries are associated to it
+        if (0 === \count($tag->getEntries())) {
+            $em = $this->getDoctrine()->getManager();
+            $em->remove($tag);
+            $em->flush();
+        }
+
+        $redirectUrl = $this->get('wallabag_core.helper.redirect')->to($request->headers->get('referer'), '', true);
+
+        return $this->redirect($redirectUrl);
+    }
 }

src/Wallabag/CoreBundle/Resources/views/themes/material/Tag/tags.html.twig

@@ -26,6 +26,9 @@
                         <i class="material-icons">mode_edit</i>
                     </a>
                     {% endif %}
+                    <a href="{{ path('tag_delete', {'slug': tag.slug})}}">
+                        <i class="material-icons">mode_delete</i>
+                    </a>
                     {% if app.user.config.feedToken %}
                         <a rel="alternate" type="application/atom+xml" href="{{ path('tag_feed', {'username': app.user.username, 'token': app.user.config.feedToken, 'slug': tag.slug}) }}" class="card-tag-icon"><i class="material-icons">rss_feed</i></a>
                     {% endif %}

tests/Wallabag/CoreBundle/Controller/TagControllerTest.php

@@ -141,6 +141,53 @@ class TagControllerTest extends WallabagCoreTestCase
         $this->assertNull($tag, $this->tagName . ' was removed because it begun an orphan tag');
     }
 
+    public function testRemoveTag()
+    {
+        $this->logInAs('admin');
+        $client = $this->getClient();
+
+        $tag = new Tag();
+        $tag->setLabel($this->tagName);
+
+        $entry = new Entry($this->getLoggedInUser());
+        $entry->setUrl('http://0.0.0.0/foo');
+        $entry->addTag($tag);
+        $this->getEntityManager()->persist($entry);
+
+        $entry2 = new Entry($this->getLoggedInUser());
+        $entry2->setUrl('http://0.0.0.0/bar');
+        $entry2->addTag($tag);
+        $this->getEntityManager()->persist($entry2);
+        $this->getEntityManager()->flush();
+        $this->getEntityManager()->clear();
+
+        $client->request('GET', '/tag/delete/' . $tag->getSlug());
+
+        $tag = $client->getContainer()
+            ->get('doctrine.orm.entity_manager')
+            ->getRepository('WallabagCoreBundle:Tag')
+            ->findOneByLabel($this->tagName);
+
+        $this->assertNull($tag, $this->tagName . ' was removed because it begun an orphan tag');
+
+        $user = $this->getEntityManager()
+            ->getRepository('WallabagUserBundle:User')
+            ->findOneByUserName('admin');
+
+        $entry = $client->getContainer()
+            ->get('doctrine.orm.entity_manager')
+            ->getRepository('WallabagCoreBundle:Entry')
+            ->findByUrlAndUserId('http://0.0.0.0/foo', $user->getId());
+
+        $entry2 = $client->getContainer()
+            ->get('doctrine.orm.entity_manager')
+            ->getRepository('WallabagCoreBundle:Entry')
+            ->findByUrlAndUserId('http://0.0.0.0/bar', $user->getId());
+
+        $this->assertEmpty($entry->getTagsLabel());
+        $this->assertEmpty($entry2->getTagsLabel());
+    }
+
     public function testShowEntriesForTagAction()
     {
         $this->logInAs('admin');