From 3b0027a4be16eb2d504b0ca56affbd1d86491ec8 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@bah.spb.su>
Date: Thu, 29 Dec 2005 18:46:11 +0100
Subject: [PATCH] disable linking for feeds already linked to

---
 backend.php | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/backend.php b/backend.php
index 467d1af0e..067995b86 100644
--- a/backend.php
+++ b/backend.php
@@ -1632,9 +1632,20 @@
 			$row_class = toggleEvenOdd($row_class);
 			print "<tr class='$row_class'><td>Link to:</td>";
 
+			$tmp_result = db_query($link, "SELECT COUNT(id) AS count
+				FROM ttrss_feeds WHERE parent_feed = '$feed_id'");
+
+			$linked_count = db_fetch_result($tmp_result, 0, "count");
+
+
 			$parent_feed = db_fetch_result($result, 0, "parent_feed");
-		
-			print "<select id=\"iedit_parent_feed\">";
+
+			if ($linked_count > 0) {
+				$disabled = "disabled";
+			}
+
+			print "<select $disabled  id=\"iedit_parent_feed\">";
+			
 			print "<option id=\"0\">Not linked</option>";
 
 			if (get_pref($link, 'ENABLE_FEED_CATS')) {