Rooms: Save times as Worklog and notify on room deletion

includes/model/Shifts_model.php

@@ -80,12 +80,15 @@ function Shifts_from_frab()
 }
 
 /**
- * @param array $room
+ * @param array|int $room
  * @return array[]
  */
 function Shifts_by_room($room)
 {
-    return DB::select('SELECT * FROM `Shifts` WHERE `RID`=? ORDER BY `start`', [$room['RID']]);
+    return DB::select(
+        'SELECT * FROM `Shifts` WHERE `RID`=? ORDER BY `start`',
+        [is_array($room) ? $room['RID'] : $room]
+    );
 }
 
 /**

includes/pages/admin_rooms.php

@@ -179,9 +179,16 @@ function admin_rooms()
             ]);
         } elseif ($request->input('show') == 'delete') {
             if ($request->hasPostData('ack')) {
+                $shifts = Shifts_by_room($room_id);
+                foreach ($shifts as $shift) {
+                    $shift = Shift($shift['SID']);
+
+                    UserWorkLog_from_shift($shift);
+                    mail_shift_delete($shift);
+                }
+
                 Room_delete($room_id);
 
-                engelsystem_log('Room deleted: ' . $name);
                 success(sprintf(__('Room %s deleted.'), $name));
                 redirect(page_link_to('admin_rooms'));
             }