Add general configuration check to the list view

Classes/Controller/CalendarController.php

@@ -10,6 +10,7 @@
 use HDNET\Calendarize\Domain\Model\Index;
 use HDNET\Calendarize\Register;
 use HDNET\Calendarize\Utility\DateTimeUtility;
+use TYPO3\CMS\Core\Messaging\FlashMessage;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Core\Utility\MathUtility;
 use TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface;
@@ -139,6 +140,8 @@ public function listAction(
             $this->forward('detail');
         }
 
+        $this->checkConfiguration();
+
         $searchMode = false;
         if ($startDate || $endDate || $customSearch) {
             $searchMode = true;
@@ -325,4 +328,15 @@ protected function getCurrentConfigurations()
         return $return;
     }
 
+    /**
+     * Check the configuration
+     */
+    protected function checkConfiguration()
+    {
+        if (!isset($this->settings['dateFormat'])) {
+            $this->addFlashMessage('Basic configuration settings are missing. It seems, that the Static Extension TypoScript is not loaded to your TypoScript configuration. Please add the calendarize TS to your TS settings.',
+                'Configuration Error', FlashMessage::ERROR);
+        }
+    }
+
 }

Resources/Private/Templates/Calendar/List.html

@@ -2,6 +2,8 @@
 
 <f:section name="Main">
 
+	<f:flashMessages />
+
 	<f:render partial="List" arguments="{settings: settings, indices: indices}" />
 
 </f:section>