Made backend changes

undodeletelink.php

@@ -9,11 +9,14 @@ $statement = $session->prepare('SELECT * FROM DATA WHERE user=? AND shortlink=?
 $result = $session->execute($statement,array('arguments' => array($_SESSION['user'],$_POST['link'])));
 $row_id = $result[0]['id'];
 
-
+if (empty($row_id) || empty($_POST['link']) || empty($_SESSION['user'])) {
+	http_response_code(500);
+}
 
 $statement = $session->prepare('UPDATE data USING TTL 0 SET hell=false, shortlink=?, url=?, user=?, latitude=?, longitude=?, radius=? WHERE id=?;');
 $new_result = $session->execute($statement,array('arguments' => array($_POST['link'], $result[0]['url'], $result[0]['user'], $result[0]['latitude'], $result[0]['longitude'], $result[0]['radius'], $row_id)));
 
 
+
 http_response_code(204);
 ?>

updatelink.php

@@ -5,8 +5,8 @@ require_once 'db.inc.php';
 $session = init_cass_db();
 
 //GET ROW ID
-$statement = $session->prepare('SELECT * FROM DATA WHERE user=? AND shortlink=? AND url=? ALLOW FILTERING;');
-$result = $session->execute($statement,array('arguments' => array($_SESSION['user'],$_POST['old_link'], $_POST['old_url'])));
+$statement = $session->prepare('SELECT * FROM DATA WHERE user=? AND shortlink=? ALLOW FILTERING;');
+$result = $session->execute($statement,array('arguments' => array($_SESSION['user'],$_POST['old_link'])));
 $row_id = $result[0]['id'];