Added API class and support for settings within YAML config

src/API/GoogleAPI.php

@@ -0,0 +1,101 @@
+<?php
+
+/**
+ * This file is part of SilverWare.
+ *
+ * PHP version >=5.6.0
+ *
+ * For full copyright and license information, please view the
+ * LICENSE.md file that was distributed with this source code.
+ *
+ * @package SilverWare\Google\API
+ * @author Colin Tucker <[email protected]>
+ * @copyright 2017 Praxis Interactive
+ * @license https://opensource.org/licenses/BSD-3-Clause BSD-3-Clause
+ * @link https://github.com/praxisnetau/silverware-google
+ */
+
+namespace SilverWare\Google\API;
+
+use SilverStripe\Core\Config\Configurable;
+use SilverStripe\Core\Injector\Injectable;
+use SilverStripe\SiteConfig\SiteConfig;
+
+/**
+ * An object to encapsulate Google API data and methods.
+ *
+ * @package SilverWare\Google\API
+ * @author Colin Tucker <[email protected]>
+ * @copyright 2017 Praxis Interactive
+ * @license https://opensource.org/licenses/BSD-3-Clause BSD-3-Clause
+ * @link https://github.com/praxisnetau/silverware-google
+ */
+class GoogleAPI
+{
+    use Injectable;
+    use Configurable;
+
+    /**
+     * Answers the API language from site or YAML configuration.
+     *
+     * @return string
+     */
+    public function getAPILanguage()
+    {
+        $lang = SiteConfig::current_site_config()->GoogleAPILanguage;
+
+        if (!$lang) {
+            $lang = self::config()->api_language;
+        }
+
+        return $lang;
+    }
+
+    /**
+     * Answers the analytics tracking ID from site or YAML configuration.
+     *
+     * @return string
+     */
+    public function getAnalyticsTrackingID()
+    {
+        $id = SiteConfig::current_site_config()->GoogleAnalyticsTrackingID;
+
+        if (!$id) {
+            $id = self::config()->analytics_tracking_id;
+        }
+
+        return $id;
+    }
+
+    /**
+     * Answers the site verification code from site or YAML configuration.
+     *
+     * @return string
+     */
+    public function getVerificationCode()
+    {
+        $code = SiteConfig::current_site_config()->GoogleVerificationCode;
+
+        if (!$code) {
+            $code = self::config()->verification_code;
+        }
+
+        return $code;
+    }
+
+    /**
+     * Answers true if analytics is enabled for the site.
+     *
+     * @return boolean
+     */
+    public function isAnalyticsEnabled()
+    {
+        $enabled = SiteConfig::current_site_config()->GoogleAnalyticsEnabled;
+
+        if (!$enabled) {
+            $enabled = self::config()->analytics_enabled;
+        }
+
+        return (boolean) $enabled;
+    }
+}

src/Extensions/GoogleConfig.php

@@ -23,6 +23,7 @@
 use SilverStripe\Forms\TextField;
 use SilverWare\Extensions\Config\ServicesConfig;
 use SilverWare\Forms\FieldSection;
+use SilverWare\Google\API\GoogleAPI;
 
 /**
  * An extension of the services config class which adds Google settings to site configuration.
@@ -161,12 +162,14 @@ public function getBodyAttributes()
     {
         $attributes = [];
 
-        if ($this->getSiteConfig()->GoogleAPILanguage) {
-            $attributes['data-google-api-lang'] = $this->getSiteConfig()->GoogleAPILanguage;
+        $api = GoogleAPI::singleton();
+
+        if ($lang = $api->getAPILanguage()) {
+            $attributes['data-google-api-lang'] = $lang;
         }
 
-        if ($this->getSiteConfig()->GoogleAnalyticsEnabled) {
-            $attributes['data-google-tracking-id'] = $this->getSiteConfig()->GoogleAnalyticsTrackingID;
+        if ($api->isAnalyticsEnabled()) {
+            $attributes['data-google-tracking-id'] = $api->getAnalyticsTrackingID();
         }
 
         return $attributes;

src/Extensions/PageExtension.php

@@ -20,6 +20,7 @@
 use SilverStripe\Core\Convert;
 use SilverStripe\Core\Extension;
 use SilverStripe\SiteConfig\SiteConfig;
+use SilverWare\Google\API\GoogleAPI;
 
 /**
  * An extension which adds Google features to pages.
@@ -46,7 +47,7 @@ class PageExtension extends Extension
      */
     public function MetaTags(&$tags)
     {
-        if ($code = SiteConfig::current_site_config()->GoogleVerificationCode) {
+        if ($code = GoogleAPI::singleton()->getVerificationCode()) {
 
             // Add New Line (if does not exist):