Added sonata FrontendLinkExtension to render frontend route button

Author: frne

Admin/Extension/FrontendLinkExtension.php

@@ -0,0 +1,67 @@
+<?php
+
+/*
+ * This file is part of the Symfony CMF package.
+ *
+ * (c) 2011-2014 Symfony CMF
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Cmf\Bundle\RoutingBundle\Admin\Extension;
+
+use Knp\Menu\ItemInterface as MenuItemInterface;
+use Sonata\AdminBundle\Admin\AdminExtension;
+use Sonata\AdminBundle\Admin\AdminInterface;
+use Sonata\AdminBundle\Form\FormMapper;
+use Symfony\Cmf\Component\Routing\RouteReferrersReadInterface;
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+use Symfony\Component\Routing\RouterInterface;
+
+/**
+ * Admin extension to add a frontend link to the edit tab implementing the
+ * RouteReferrersReadInterface.
+ *
+ * @author Frank Neff <[email protected]>
+ */
+class FrontendLinkExtension extends AdminExtension
+{
+    /**
+     * @var RouterInterface
+     */
+    private $router;
+
+    /**
+     * @param RouterInterface $router
+     */
+    public function __construct(RouterInterface $router)
+    {
+        $this->router = $router;
+    }
+
+    public function configureTabMenu(
+        AdminInterface $admin,
+        MenuItemInterface $menu,
+        $action,
+        AdminInterface $childAdmin = null
+    ) {
+        if (!$subject = $admin->getSubject()) {
+            return;
+        }
+
+        if (!$subject instanceof RouteReferrersReadInterface) {
+            throw new InvalidConfigurationException(
+                sprintf(
+                    '%s can only be used on subjects which implement Symfony\Cmf\Component\Routing\RouteReferrersReadInterface!',
+                    __CLASS__
+                )
+            );
+        }
+
+        $uri = $this->router->generate($subject);
+
+        $menu->addChild('Open in frontend', array('uri' => $uri, 'linkAttributes' => array('target' => '_blank')));
+    }
+
+}

Resources/config/admin-phpcr.xml

@@ -10,6 +10,7 @@
         <parameter key="cmf_routing.route_document.class">Symfony\Cmf\Bundle\RoutingBundle\Doctrine\Phpcr\Route</parameter>
         <parameter key="cmf_routing.redirect_route_document.class">Symfony\Cmf\Bundle\RoutingBundle\Doctrine\Phpcr\RedirectRoute</parameter>
         <parameter key="cmf_routing.admin_extension.route_referrers.class">Symfony\Cmf\Bundle\RoutingBundle\Admin\Extension\RouteReferrersExtension</parameter>
+        <parameter key="cmf_routing.admin_extension.frontend_link.class">Symfony\Cmf\Bundle\RoutingBundle\Admin\Extension\FrontendLinkExtension</parameter>
     </parameters>
 
     <services>
@@ -55,5 +56,10 @@
             <tag name="sonata.admin.extension"/>
         </service>
 
+        <service id="cmf_routing.admin_extension.frontend_link" class="%cmf_routing.admin_extension.frontend_link.class%">
+            <tag name="sonata.admin.extension"/>
+            <argument type="service" id="cmf_routing.router"/>
+        </service>
+
     </services>
 </container>