fix adding feed w/o cat_id (closes #14)

diff --git a/backend.php b/backend.php
index 07f3ff17a57c1b78440e75aed50f483837feb248..2b527cc1747790a2f02b5995bc5166f9ba3cdbe4 100644 (file)
--- a/backend.php
+++ b/backend.php
@@ -1643,7 +1643,7 @@
                                $feed_link = db_escape_string(trim($_GET["link"]));
                                $cat_id = db_escape_string($_GET["cid"]);
 
-                               if ($cat_id == "0") {
+                               if ($cat_id == "0" || !$cat_id) {
                                        $cat_qpart = "NULL";
                                } else {
                                        $cat_qpart = "'$cat_id'";