added config vars for exams

Author: robo220

src/Bookboon/ApiBundle/DependencyInjection/Configuration.php

@@ -23,6 +23,8 @@ public function getConfigTreeBuilder()
             ->scalarNode('branding')->end()
             ->scalarNode('rotation')->end()
             ->scalarNode('currency')->end()
+            ->scalarNode('client_id')->defaultNull()->end()
+            ->scalarNode('redirect')->defaultNull()->end()
             ->scalarNode('cache_service')->defaultValue("bookboonapi.cache.redis")->end()
             ->arrayNode('languages')->isRequired()->prototype('scalar')->end()->end()
             ->arrayNode('scopes')->isRequired()->prototype('scalar')->end()->end()

src/Bookboon/ApiBundle/Helper/ConfigurationHolder.php

@@ -72,6 +72,23 @@ public function getCurrency()
         return isset($this->_config['currency']) ? $this->_config['currency'] : null;
     }
 
+    /**
+     * @return string
+     */
+    public function getClientId()
+    {
+        return isset($this->_config['client_id']) ? $this->_config['client_id'] : null;
+    }
+
+
+    /**
+     * @return string
+     */
+    public function getRedirectUrl()
+    {
+        return isset($this->_config['redirect']) ? $this->_config['redirect'] : null;
+    }
+
     /**
      * @return int
      */