From ecf6baaa1c1856be15016c70cf5bb6165735c8df Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <noreply@fakecake.org>
Date: Fri, 1 Dec 2017 22:17:04 +0300
Subject: [PATCH] fix add_feed_category

---
 include/functions.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/functions.php b/include/functions.php
index c28460dff..4154d8d5e 100644
--- a/include/functions.php
+++ b/include/functions.php
@@ -1952,16 +1952,17 @@
 		if (!$feed_cat) return false;
 
 		$feed_cat = mb_substr($feed_cat, 0, 250);
+		if (!$parent_cat_id) $parent_cat_id = null;
 
 		$pdo = Db::pdo();
 		$pdo->beginTransaction();
 
 		$sth = $pdo->prepare("SELECT id FROM ttrss_feed_categories
 				WHERE (parent_cat = :parent OR (:parent IS NULL AND parent_cat IS NULL)) 
-				AND title = :cat AND owner_uid = :uid");
+				AND title = :title AND owner_uid = :uid");
 		$sth->execute([':parent' => $parent_cat_id, ':title' => $feed_cat, ':uid' => $_SESSION['uid']]);
 
-		if ($sth->fetch()) {
+		if (!$sth->fetch()) {
 
 			$sth = $pdo->prepare("INSERT INTO ttrss_feed_categories (owner_uid,title,parent_cat)
 					VALUES (?, ?, ?)");