handle missing update schema diff in update.php

tt-rss.css

@@ -600,7 +600,7 @@ div.warning {
 }
 
 
-div.warning img, div.notice img {
+div.warning img, div.notice img, div.error img {
 	vertical-align : middle;
 	padding : 5px;
 }

update.php

@@ -82,12 +82,22 @@ function confirmOP() {
 	ksort($update_versions, SORT_NUMERIC);
 	
 	$latest_version = max(array_keys($update_versions));
-	
+
 	if ($version == $latest_version) {
-		print "<p>".__("Tiny Tiny RSS database is up to date.")."</p>";
-		print "<form method=\"GET\" action=\"tt-rss.php\">
-			<input type=\"submit\" value=\"".__("Return to Tiny Tiny RSS")."\">
-			</form>";
+
+		if ($version != SCHEMA_VERSION) {
+			print_error(__("Could not update database"));
+
+			print "<p>" . 
+				__("Could not find necessary schema file, need version:") .
+				" " . SCHEMA_VERSION . __(", found: ") . $latest_version . "</p>";
+
+		} else {
+			print "<p>".__("Tiny Tiny RSS database is up to date.")."</p>";
+			print "<form method=\"GET\" action=\"tt-rss.php\">
+				<input type=\"submit\" value=\"".__("Return to Tiny Tiny RSS")."\">
+				</form>";
+		}
 
 		return;
 	}

utility.css

@@ -47,8 +47,17 @@ div.warning {
 }
 
 
-div.warning img, div.notice img {
+div.warning img, div.notice img, div.error img {
 	vertical-align : middle;
 	padding : 5px;
 }
 
+div.error {
+	border : 1px solid #ff0000;
+	background : #ffcccc;
+	padding : 5px;
+	margin : 0px 0px 5px 0px;
+	font-size : 9pt;
+	width : 50%;
+}
+