getSitesByNodeName example

        if ($node === 'root') {
            try {
                $query = $this->getSiteRepository()->getGroupListQuery();
                $sites = $query->getArrayResult();
                $this->View()->assign(['success' => true, 'nodes' => $sites]);
            } catch (Exception $e) {
                $this->View()->assign(['success' => false, 'message' => $e->getMessage()]);
            }
        } else {
            try {
                // Call the getSitesByNodeName helper function, which will return an array containing all children of that node                 $sites = $this->getSitesByNodeName($node);

                // Hand that array to the view                 $this->View()->assign(['success' => true, 'nodes' => $sites]);
            } catch (Exception $e) {
                // Catch all errors                 $this->View()->assign(['success' => false, 'message' => $e->getMessage()]);
            }
        }
    }

    /** * this function enables the user to create groups * after taking a groupName and a templateVariable, it will check if either one already exists and if so, throw an exception * otherwise it will append the new group to cmsPositions in s_core_config */