Add a time stamp to package base votes

This can potentially be used to identify trending packages.
Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>

schema/aur-schema.sql

@@ -249,6 +249,7 @@ CREATE TABLE PackageSources (
 CREATE TABLE PackageVotes (
 	UsersID INTEGER UNSIGNED NOT NULL,
 	PackageBaseID INTEGER UNSIGNED NOT NULL,
+	VoteTS BIGINT UNSIGNED NULL DEFAULT NULL,
 	INDEX (UsersID),
 	INDEX (PackageBaseID),
 	FOREIGN KEY (UsersID) REFERENCES Users(ID) ON DELETE CASCADE,

upgrading/3.5.0.txt

@@ -5,3 +5,9 @@ ALTER TABLE PackageDepends ADD COLUMN DepArch VARCHAR(255) NULL DEFAULT NULL;
 ALTER TABLE PackageRelations ADD COLUMN RelArch VARCHAR(255) NULL DEFAULT NULL;
 ALTER TABLE PackageSources ADD COLUMN SourceArch VARCHAR(255) NULL DEFAULT NULL;
 ----
+
+2. Add a time stamp column to the package votes table:
+
+----
+ALTER TABLE PackageVotes ADD COLUMN VoteTS BIGINT NULL DEFAULT NULL;
+----

web/lib/pkgbasefuncs.inc.php

@@ -667,12 +667,12 @@ function pkgbase_vote ($base_ids, $action=true) {
 				$first = 0;
 				$vote_ids = $pid;
 				if ($action) {
-					$vote_clauses = "($uid, $pid)";
+					$vote_clauses = "($uid, $pid, UNIX_TIMESTAMP())";
 				}
 			} else {
 				$vote_ids .= ", $pid";
 				if ($action) {
-					$vote_clauses .= ", ($uid, $pid)";
+					$vote_clauses .= ", ($uid, $pid, UNIX_TIMESTAMP())";
 				}
 			}
 		}
@@ -686,7 +686,7 @@ function pkgbase_vote ($base_ids, $action=true) {
 	$dbh->exec($q);
 
 	if ($action) {
-		$q = "INSERT INTO PackageVotes (UsersID, PackageBaseID) VALUES ";
+		$q = "INSERT INTO PackageVotes (UsersID, PackageBaseID, VoteTS) VALUES ";
 		$q.= $vote_clauses;
 	} else {
 		$q = "DELETE FROM PackageVotes WHERE UsersID = $uid ";