Add message when not logged in for adding products to wishlist

Author: Pieter Cappelle

app/code/Magento/Wishlist/Controller/Index/Plugin.php

@@ -30,26 +30,29 @@ class Plugin
     protected $config;
 
     /**
-     * @var \Magento\Framework\App\Response\RedirectInterface
+     * @var \Magento\Framework\Message\ManagerInterface $messageManager
      */
-    protected $redirector;
+    protected $messageManager;
 
     /**
      * @param CustomerSession $customerSession
      * @param \Magento\Wishlist\Model\AuthenticationStateInterface $authenticationState
      * @param ScopeConfigInterface $config
      * @param RedirectInterface $redirector
+     * @param \Magento\Framework\Message\ManagerInterface $messageManager
      */
     public function __construct(
         CustomerSession $customerSession,
         \Magento\Wishlist\Model\AuthenticationStateInterface $authenticationState,
         ScopeConfigInterface $config,
-        RedirectInterface $redirector
+        RedirectInterface $redirector,
+        \Magento\Framework\Message\ManagerInterface $messageManager
     ) {
         $this->customerSession = $customerSession;
         $this->authenticationState = $authenticationState;
         $this->config = $config;
         $this->redirector = $redirector;
+        $this->messageManager = $messageManager;
     }
 
     /**
@@ -72,6 +75,10 @@ public function beforeDispatch(\Magento\Framework\App\ActionInterface $subject,
             $this->customerSession->setBeforeModuleName('wishlist');
             $this->customerSession->setBeforeControllerName('index');
             $this->customerSession->setBeforeAction('add');
+
+            if ($request->getActionName() == 'add') {
+                $this->messageManager->addErrorMessage(__('You must login or register to add items to your wishlist.'));
+            }
         }
         if (!$this->config->isSetFlag('wishlist/general/active')) {
             throw new NotFoundException(__('Page not found.'));

app/code/Magento/Wishlist/Test/Unit/Controller/Index/PluginTest.php

@@ -28,6 +28,11 @@ class PluginTest extends \PHPUnit\Framework\TestCase
      */
     protected $redirector;
 
+    /**
+     * @var \Magento\Framework\Message\ManagerInterface|\PHPUnit_Framework_MockObject_MockObject
+     */
+    protected $messageManager;
+
     /**
      * @var \Magento\Framework\App\Request\Http|\PHPUnit_Framework_MockObject_MockObject
      */
@@ -53,6 +58,7 @@ protected function setUp()
         $this->authenticationState = $this->createMock(\Magento\Wishlist\Model\AuthenticationState::class);
         $this->config = $this->createMock(\Magento\Framework\App\Config::class);
         $this->redirector = $this->createMock(\Magento\Store\App\Response\Redirect::class);
+        $this->messageManager = $this->createMock(\Magento\Framework\Message\ManagerInterface::class);
         $this->request = $this->createMock(\Magento\Framework\App\Request\Http::class);
     }
 
@@ -63,6 +69,7 @@ protected function tearDown()
             $this->authenticationState,
             $this->config,
             $this->redirector,
+            $this->messageManager,
             $this->request
         );
     }
@@ -73,7 +80,8 @@ protected function getPlugin()
             $this->customerSession,
             $this->authenticationState,
             $this->config,
-            $this->redirector
+            $this->redirector,
+            $this->messageManager
         );
     }
 

app/code/Magento/Wishlist/i18n/en_US.csv

@@ -116,3 +116,4 @@ Action,Action
 Configure,Configure
 Delete,Delete
 "Product Details and Comment","Product Details and Comment"
+"You must login or register to add items to your wishlist.","You must login or register to add items to your wishlist."