filter available pages

src/routes/pages.js

@@ -24,6 +24,18 @@ router.get('/page/edit/:id', async (req, res, next) => {
     let page = await Pages.get(pageId);
     let pagesAvailable = await Pages.getAll();
 
+    (function childrenRemove(parent) {
+      pagesAvailable.forEach((item, index) => {
+        if (item !== null && item._parent === parent) {
+          pagesAvailable[index] = null;
+          childrenRemove(item._id);
+          return false;
+        }
+        return true;
+      });
+    })(page._id);
+    pagesAvailable = pagesAvailable.filter((item) => item !== null);
+
     res.render('pages/form', {
       pagesAvailable,
       page