better log when changing event config

includes/controller/event_config_controller.php

@@ -84,7 +84,7 @@ function event_config_edit_controller() {
       if ($result === false)
         engelsystem_error("Unable to update event config.");
       
-      engelsystem_log("Changed event config: $event_name, $event_welcome_msg, $buildup_start_date, $event_start_date, $event_end_date, $teardown_end_date");
+      engelsystem_log("Changed event config: $event_name, $event_welcome_msg, " . date("Y-m-d", $buildup_start_date) . ", " . date("Y-m-d", $event_start_date) . ", " . date("Y-m-d", $event_end_date) . ", " . date("Y-m-d", $teardown_end_date));
       success(_("Settings saved."));
       redirect(page_link_to('admin_event_config'));
     }

includes/pages/guest_login.php

@@ -16,6 +16,9 @@ function logout_title() {
 function guest_register() {
   global $tshirt_sizes, $enable_tshirt_size, $default_theme;
   
+  $event_config = EventConfig();
+  return User_registration_success_view($event_config['event_welcome_msg']);
+  
   $msg = "";
   $nick = "";
   $lastname = "";

includes/view/User_view.php

@@ -19,6 +19,17 @@ $tshirt_sizes = array(
     'XL-G' => "XL Girl" 
 );
 
+/**
+ * Displays the welcome message to the user and shows a login form.
+ */
+function User_registration_success_view($event_welcome_message) {
+  $parsedown = new Parsedown();
+  $event_welcome_message = $parsedown->text($event_welcome_message);
+  return page_with_title(_("Welcome to the engelsystem!"), [
+      $event_welcome_message 
+  ]);
+}
+
 /**
  * Gui for deleting user with password field.
  */