FIX(tags): redirect view method when is HTML format

Refs: #954

src/Controller/Api/V1/TagsController.php

@@ -160,7 +160,11 @@ class TagsController extends AppController
     }
 
     /**
-     * View method of a given tag
+     * API view method of a given tag
+     *
+     *      URL :   API     /$lang/tags/$idTag.json
+     *              Webapp  /$lang/tags/$idTag   ---> redirect 301 to /$lang/tags/$idTag/software
+     *                      /$lang/tags/$idTag/  ---> redirect 301 to /$lang/tags/$idTag/software
      *
      * @param string|null $id Tag id.
      * @return Response|null
@@ -168,17 +172,23 @@ class TagsController extends AppController
      */
     public function view($id = null)
     {
+        if ($this->request->is('json')) {
+            $tag = $this->Tags->get(
+                $id,
+                ['contain' => ['Softwares']]
+            );
 
-        $tag = $this->Tags->get(
-            $id,
-            ['contain' => ['Softwares']]
-        );
-
-        $this->set('tag', $tag);
-        $this->set('_serialize', ['tag']);
-        return null;
+            $this->set('tag', $tag);
+            $this->set('_serialize', ['tag']);
+            return null;
+        } else {
+            $idTag = (int) $id;
+            $lang = $this->selectedLanguage;
+            return $this->redirect("/$lang/tags/$idTag/software", 301);
+        }
     }
 
+
     /**
      * Returns a list of software associated to a given tag
      *

tests/TestCase/Controller/Api/V1/TagsControllerTest.php

@@ -198,7 +198,36 @@ class TagsControllerTest extends ApiIntegrationTestCase
     }
 
     /**
-     * Test view method of Tags controller. Show us all data of one tag, here is tested tag id=4.
+     * Test view method of Tags controller for HTML format
+     * must redirect to new tag URL
+     *
+     *      URL :   Webapp  /$lang/tags/$idTag   ---> redirect 301 to /$lang/tags/$idTag/software
+     *                      /$lang/tags/$idTag/  ---> redirect 301 to /$lang/tags/$idTag/software
+     *
+     * @group public
+     * @group tag
+     * @group tag_public
+     * @group tag_method_view
+     *
+     * @return void
+     */
+    public function testViewMethodForHtmlFormat()
+    {
+        $this->get('/tags/4');
+        $this->currentResponseIsRedirectionToAnotherUrl('/en/tags/4/software', 301);
+
+        $this->get('/fr/tags/4');
+        $this->currentResponseIsRedirectionToAnotherUrl('/fr/tags/4/software', 301);
+
+        $this->get('/fr/tags/4/');
+        $this->currentResponseIsRedirectionToAnotherUrl('/fr/tags/4/software', 301);
+    }
+
+    /**
+     * Test API view method of Tags controller for JSON format.
+     * Show us all data of one tag, here is tested tag id=4.
+     *
+     *      URL :   API     /$lang/tags/$idTag.json
      *
      * @group public
      * @group tag
@@ -207,7 +236,7 @@ class TagsControllerTest extends ApiIntegrationTestCase
      *
      * @return void
      */
-    public function testView()
+    public function testViewMethodForJsonFormat()
     {
         $this->get('/api/v1/tags/4.json');