Add rich snippets on post page

ihorvansach · ihorvansach · commit e803def985da · 2016-07-04T20:51:03.000+03:00
diff --git a/Block/Post/View/Richsnippets.php b/Block/Post/View/Richsnippets.php
@@ -0,0 +1,55 @@
+<?php
+/**
+ * Copyright © 2016 Ihor Vansach (ihor@magefan.com). All rights reserved.
+ * See LICENSE.txt for license details (http://opensource.org/licenses/osl-3.0.php).
+ *
+ * Glory to Ukraine! Glory to the heroes!
+ */
+namespace Magefan\Blog\Block\Post\View;
+
+use Magento\Store\Model\ScopeInterface;
+
+/**
+ * Blog post view rich snippets
+ */
+class Richsnippets extends \Magefan\Blog\Block\Post\AbstractPost
+{
+    /**
+     * @param  array
+     */
+    protected $_options;
+
+    /**
+     * Retrieve snipet params
+     *
+     * @return array
+     */
+    public function getOptions()
+    {
+        if ($this->_options === null) {
+            $post = $this->getPost();
+            $this->_options = array(
+                '@context' => 'http://schema.org',
+                '@type' => 'BlogPosting',
+                '@id' => $post->getPostUrl(),
+                'headline' => $post->getTitle(),
+                'description' => $post->getMetaDescription(),
+                'datePublished' => $post->getPublishDate('c'),
+            );
+        }
+
+        return $this->_options;
+    }
+
+    /**
+     * Render html output
+     *
+     * @return string
+     */
+    protected function _toHtml()
+    {
+        return '<script type="application/ld+json">'
+            . json_encode($this->getOptions())
+            . '</script>';
+    }
+}
diff --git a/Model/Post.php b/Model/Post.php
@@ -191,6 +191,10 @@ public function getPostUrl()
         return $this->_url->getUrl($this, URL::CONTROLLER_POST);
     }
 
+    /**
+     * Retrieve featured image url
+     * @return string
+     */
     public function getFeaturedImage()
     {
         if (!$this->hasData('featured_image')) {
@@ -205,6 +209,25 @@ public function getFeaturedImage()
         return $this->getData('featured_image');
     }
 
+    /**
+     * Retrieve meta description
+     * @return string
+     */
+    public function getMetaDescription()
+    {
+        $desc = $this->getData('meta_description');
+        if (!$desc) {
+            $desc = $this->getData('content');
+        }
+
+        $desc = strip_tags($desc);
+        if (mb_strlen($desc) > 160) {
+            $desc = mb_substr($desc, 160);
+        }
+
+        return $desc;
+    }
+
     /**
      * Retrieve post parent categories
      * @return \Magefan\Blog\Model\ResourceModel\Category\Collection
diff --git a/view/frontend/layout/blog_post_richsnippets.xml b/view/frontend/layout/blog_post_richsnippets.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0"?>
+<!--
+/**
+ * Copyright © 2016 Ihor Vansach (ihor@magefan.com). All rights reserved.
+ * See LICENSE.txt for license details (http://opensource.org/licenses/osl-3.0.php).
+ *
+ * Glory to Ukraine! Glory to the heroes!
+ */
+-->
+<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
+    <body>
+        <referenceBlock name="head.additional">
+            <block class="Magefan\Blog\Block\Post\View\Richsnippets" name="blog.post.richsnippets"/>
+        </referenceBlock>
+    </body>
+</page>
diff --git a/view/frontend/layout/blog_post_view.xml b/view/frontend/layout/blog_post_view.xml
@@ -10,6 +10,7 @@
 <page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
     <update handle="blog_default"/>
     <update handle="blog_post_opengraph" />
+    <update handle="blog_post_richsnippets" />
     <body>
         <referenceContainer name="content">
             <block class="Magefan\Blog\Block\Post\View" name="blog.post" template="post/view.phtml">
