add additional pages and handle introduction page as ?system? page

controllers/IntroductionController.inc

@@ -19,6 +19,12 @@
      */
     class IntroductionController extends \hhu\z\controllers\IntermediateController
     {
+        /**
+         * Required models
+         *
+         * @var array
+         */
+        public $models = array('pages');
 
 
 
@@ -28,8 +34,60 @@
          */
         public function index()
         {
+            // Get introduction text
+            $page = $this->Pages->getPageByUrl(\hhu\z\models\PagesModel::PAGEURL_INTRODUCTION);
+            $text = (!is_null($page)) ? $page['text'] : null;
+
+
             // Pass data to view
             $this->set('userId', $this->Auth->getUserId());
+            $this->set('text', $text);
+        }
+
+
+        /**
+         * Action: edit.
+         */
+        public function edit()
+        {
+            // Get page
+            $page = $this->Pages->getPageByUrl(\hhu\z\models\PagesModel::PAGEURL_INTRODUCTION);
+
+            // Values
+            $text = (!is_null($page)) ? $page['text'] : null;
+
+            // Check request method
+            if($this->request->getRequestMethod() == 'POST')
+            {
+                if(!is_null($this->request->getPostParam('edit')))
+                {
+                    // Get values
+                    $text = $this->request->getPostParam('text');
+
+                    // Create page if necessary
+                    if(is_null($page)) {
+                        $pageId = $this->Pages->createPage(
+                            $this->Auth->getUserId(),
+                            \hhu\z\models\PagesModel::PAGEURL_INTRODUCTION
+                        );
+                        $page = $this->Pages->getPageById($pageId);
+                    }
+
+                    // Save text
+                    $this->Pages->editPage(
+                        $page['id'],
+                        $page['title'],
+                        $text
+                    );
+                }
+
+                // Redirect
+                $this->redirect($this->linker->link(array('index'), 1));
+            }
+
+
+            // Pass data to view
+            $this->set('text', $text);
         }
 
     }