store last feed update error in the database (SCHEMA UPDATED), display warning box in preferences on feed update error

backend.php

@@ -815,6 +815,27 @@
 			}
 		}
 
+		$result = db_query($link, "SELECT id,title,feed_url,last_error 
+			FROM ttrss_feeds WHERE last_error != ''");
+
+		if (db_num_rows($result) > 0) {
+		
+			print "<div class=\"warning\">";
+		
+			print "<b>Feeds with update errors:</b>";
+
+			print "<ul class=\"nomarks\">";
+						
+			while ($line = db_fetch_assoc($result)) {
+				print "<li>" . $line["title"] . " (" . $line["feed_url"] . "): " . 
+					$line["last_error"];
+			}
+
+			print "</ul>";
+			print "</div>";
+
+		}
+
 		print "<table class=\"prefAddFeed\"><tr>
 			<td><input id=\"fadd_link\"></td>
 			<td colspan=\"4\" align=\"right\">

functions.php

@@ -92,8 +92,11 @@
 
 		if (WEB_DEMO_MODE) return;
 
+		$feed = db_escape_string($feed);
+
 		error_reporting(0);
 		$rss = fetch_rss($feed_url);
+
 		error_reporting (E_ERROR | E_WARNING | E_PARSE);
 
 		db_query($link, "BEGIN");
@@ -349,8 +352,13 @@
 				}
 			}
 
-			db_query($link, "UPDATE ttrss_feeds SET last_updated = NOW() WHERE id = '$feed'");
+			db_query($link, "UPDATE ttrss_feeds 
+				SET last_updated = NOW(), last_error = '' WHERE id = '$feed'");
 
+		} else {
+			$error_msg = db_escape_string(magpie_error());
+			db_query($link, 
+				"UPDATE ttrss_feeds SET last_error = '$error_msg' WHERE id = '$feed'");
 		}
 
 		db_query($link, "COMMIT");

schema/ttrss_schema_mysql.sql

@@ -7,7 +7,8 @@ create table ttrss_feeds (id integer not null auto_increment primary key,
 	feed_url varchar(250) unique not null, 
 	icon_url varchar(250) not null default '',
 	update_interval integer not null default 0,
-	last_updated datetime default '') TYPE=InnoDB;
+	last_updated datetime default '',
+	last_error text not null default '') TYPE=InnoDB;
 
 insert into ttrss_feeds (title,feed_url) values ('Footnotes', 'http://gnomedesktop.org/node/feed');
 insert into ttrss_feeds (title,feed_url) values ('Freedesktop.org', 'http://planet.freedesktop.org/rss20.xml');

schema/ttrss_schema_pgsql.sql

@@ -7,7 +7,8 @@ create table ttrss_feeds (id serial not null primary key,
 	feed_url varchar(250) unique not null, 
 	icon_url varchar(250) not null default '',
 	update_interval integer not null default 0,
-	last_updated timestamp default null);
+	last_updated timestamp default null,
+	last_error text not null default '');
 
 insert into ttrss_feeds (title,feed_url) values ('Footnotes', 'http://gnomedesktop.org/node/feed');
 insert into ttrss_feeds (title,feed_url) values ('Freedesktop.org', 'http://planet.freedesktop.org/rss20.xml');

tt-rss.css

@@ -443,3 +443,18 @@ input.prefsTabSelected {
 input.prefsTab:hover {
 	background : white;
 }
+
+div.warning {
+	background : #fffff0;
+	border : 1px solid #c0c0c0;
+	padding : 5px;
+	margin : 5px;
+	font-size : x-small;
+}
+
+ul.nomarks {
+	list-style-type : none;
+	margin : 0px;
+	padding : 10px;	
+}
+

tt-rss_compact.css

@@ -473,3 +473,18 @@ input.prefsTabSelected {
 input.prefsTab:hover {
 	background : white;
 }
+
+div.warning {
+	background : #fffff0;
+	border : 1px solid #c0c0c0;
+	padding : 5px;
+	margin : 5px;
+	font-size : x-small;
+}
+
+ul.nomarks {
+	list-style-type : none;
+	margin : 0px;
+	padding : 10px;	
+}
+