Store comments on a per-package base basis

Move comments from the Packages table to PackageBases. Sharing comments
makes sense since they almost always refer to a source package.

Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>

4 files changed, 49 insertions, 47 deletions

diff --git a/schema/aur-schema.sql b/schema/aur-schema.sql
index a885b7a..9426a61 100644
--- a/schema/aur-schema.sql
+++ b/schema/aur-schema.sql
@@ -171,28 +171,28 @@ CREATE UNIQUE INDEX VoteUsersIDPackageID ON PackageVotes (UsersID, PackageBaseID
 --
 CREATE TABLE PackageComments (
 	ID BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
-	PackageID INTEGER UNSIGNED NOT NULL,
+	PackageBaseID INTEGER UNSIGNED NOT NULL,
 	UsersID INTEGER UNSIGNED NULL DEFAULT NULL,
 	Comments TEXT NOT NULL DEFAULT '',
 	CommentTS BIGINT UNSIGNED NOT NULL DEFAULT 0,
 	DelUsersID INTEGER UNSIGNED NULL DEFAULT NULL,
 	PRIMARY KEY (ID),
 	INDEX (UsersID),
-	INDEX (PackageID),
+	INDEX (PackageBaseID),
 	FOREIGN KEY (UsersID) REFERENCES Users(ID) ON DELETE SET NULL,
 	FOREIGN KEY (DelUsersID) REFERENCES Users(ID) ON DELETE CASCADE,
-	FOREIGN KEY (PackageID) REFERENCES Packages(ID) ON DELETE CASCADE
+	FOREIGN KEY (PackageBaseID) REFERENCES PackageBases(ID) ON DELETE CASCADE
 ) ENGINE = InnoDB;
 
 -- Comment addition notifications
 --
 CREATE TABLE CommentNotify (
-	PkgID INTEGER UNSIGNED NOT NULL,
+	PackageBaseID INTEGER UNSIGNED NOT NULL,
 	UserID INTEGER UNSIGNED NOT NULL,
-	FOREIGN KEY (PkgID) REFERENCES Packages(ID) ON DELETE CASCADE,
+	FOREIGN KEY (PackageBaseID) REFERENCES PackageBases(ID) ON DELETE CASCADE,
 	FOREIGN KEY (UserID) REFERENCES Users(ID) ON DELETE CASCADE
 ) ENGINE = InnoDB;
-CREATE UNIQUE INDEX NotifyUserIDPkgID ON CommentNotify (UserID, PkgID);
+CREATE UNIQUE INDEX NotifyUserIDPkgID ON CommentNotify (UserID, PackageBaseID);
 
 -- Package name blacklist
 --
diff --git a/schema/gendummydata.py b/schema/gendummydata.py
index c2cb388..bc0ede8 100755
--- a/schema/gendummydata.py
+++ b/schema/gendummydata.py
@@ -216,7 +216,7 @@ for p in list(seen_pkgs.keys()):
 	num_comments = random.randrange(PKG_CMNTS[0], PKG_CMNTS[1])
 	for i in range(0, num_comments):
 		now = NOW + random.randrange(400, 86400*3)
-		s = ("INSERT INTO PackageComments (PackageID, UsersID,"
+		s = ("INSERT INTO PackageComments (PackageBaseID, UsersID,"
 			 " Comments, CommentTS) VALUES (%d, %d, '%s', %d);\n")
 		s = s % (seen_pkgs[p], genUID(), genFortune(), now)
 		out.write(s)
diff --git a/web/lib/pkgfuncs.inc.php b/web/lib/pkgfuncs.inc.php
index e8ac9f7..4b317f5 100644
--- a/web/lib/pkgfuncs.inc.php
+++ b/web/lib/pkgfuncs.inc.php
@@ -176,20 +176,20 @@ function package_required($name="") {
 }
 
 /**
- * Get the number of non-deleted comments for a specific package
+ * Get the number of non-deleted comments for a specific package base
  *
- * @param string $pkgid The package ID to get comment count for
+ * @param string $pkgid The package base ID to get comment count for
  *
  * @return string The number of comments left for a specific package
  */
-function package_comments_count($pkgid) {
+function package_comments_count($base_id) {
 	$dbh = DB::connect();
 
-	$pkgid = intval($pkgid);
-	if ($pkgid > 0) {
+	$base_id = intval($base_id);
+	if ($base_id > 0) {
 		$dbh = DB::connect();
 		$q = "SELECT COUNT(*) FROM PackageComments ";
-		$q.= "WHERE PackageID = " . $pkgid;
+		$q.= "WHERE PackageBaseID = " . $base_id;
 		$q.= " AND DelUsersID IS NULL";
 	}
 	$result = $dbh->query($q);
@@ -203,21 +203,21 @@ function package_comments_count($pkgid) {
 }
 
 /**
- * Get all package comment information for a specific package
+ * Get all package comment information for a specific package base
  *
- * @param int $pkgid The package ID to get comments for
+ * @param int $pkgid The package base ID to get comments for
  *
- * @return array All package comment information for a specific package
+ * @return array All package comment information for a specific package base
  */
-function package_comments($pkgid) {
+function package_comments($base_id) {
+	$base_id = intval($base_id);
 	$comments = array();
-	$pkgid = intval($pkgid);
-	if ($pkgid > 0) {
+	if ($base_id > 0) {
 		$dbh = DB::connect();
 		$q = "SELECT PackageComments.ID, UserName, UsersID, Comments, CommentTS ";
 		$q.= "FROM PackageComments LEFT JOIN Users ";
 		$q.= "ON PackageComments.UsersID = Users.ID ";
-		$q.= "WHERE PackageID = " . $pkgid . " ";
+		$q.= "WHERE PackageBaseID = " . $base_id . " ";
 		$q.= "AND DelUsersID IS NULL ";
 		$q.= "ORDER BY CommentTS DESC";
 
@@ -242,20 +242,20 @@ function package_comments($pkgid) {
  * Add a comment to a package page and send out appropriate notifications
  *
  * @global string $AUR_LOCATION The AUR's URL used for notification e-mails
- * @param string $pkgid The package ID to add the comment on
+ * @param string $base_id The package base ID to add the comment on
  * @param string $uid The user ID of the individual who left the comment
  * @param string $comment The comment left on a package page
  *
  * @return void
  */
-function add_package_comment($pkgid, $uid, $comment) {
+function add_package_comment($base_id, $uid, $comment) {
 	global $AUR_LOCATION;
 
 	$dbh = DB::connect();
 
 	$q = "INSERT INTO PackageComments ";
-	$q.= "(PackageID, UsersID, Comments, CommentTS) VALUES (";
-	$q.= intval($pkgid) . ", " . $uid . ", ";
+	$q.= "(PackageBaseID, UsersID, Comments, CommentTS) VALUES (";
+	$q.= intval($base_id) . ", " . $uid . ", ";
 	$q.= $dbh->quote($comment) . ", UNIX_TIMESTAMP())";
 	$dbh->exec($q);
 
@@ -267,7 +267,7 @@ function add_package_comment($pkgid, $uid, $comment) {
 	$q.= "FROM CommentNotify, Users ";
 	$q.= "WHERE Users.ID = CommentNotify.UserID ";
 	$q.= "AND CommentNotify.UserID != " . $uid . " ";
-	$q.= "AND CommentNotify.PkgID = " . intval($pkgid);
+	$q.= "AND CommentNotify.PackageBaseID = " . intval($base_id);
 	$result = $dbh->query($q);
 	$bcc = array();
 
@@ -276,9 +276,8 @@ function add_package_comment($pkgid, $uid, $comment) {
 			array_push($bcc, $row['Email']);
 		}
 
-		$q = "SELECT Packages.* ";
-		$q.= "FROM Packages ";
-		$q.= "WHERE Packages.ID = " . intval($pkgid);
+		$q = "SELECT Name FROM PackageBases WHERE ID = ";
+		$q.= intval($base_id);
 		$result = $dbh->query($q);
 		$row = $result->fetch(PDO::FETCH_ASSOC);
 
@@ -473,7 +472,8 @@ function display_package_details($id=0, $row, $SID="") {
 			include('pkg_comment_form.php');
 		}
 
-		$comments = package_comments($id);
+		$base_id = pkgbase_from_pkgid($id);
+		$comments = package_comments($base_id);
 		if (!empty($comments)) {
 			include('pkg_comments.php');
 		}
@@ -583,7 +583,7 @@ function pkg_search_page($SID="") {
 		$q_from_extra = "LEFT JOIN PackageVotes
 		ON (PackageBases.ID = PackageVotes.PackageBaseID AND PackageVotes.UsersID = $myuid)
 		LEFT JOIN CommentNotify
-		ON (Packages.ID = CommentNotify.PkgID AND CommentNotify.UserID = $myuid) ";
+		ON (PackageBases.ID = CommentNotify.PackageBaseID AND CommentNotify.UserID = $myuid) ";
 	} else {
 		$q_from_extra = "";
 	}
@@ -920,7 +920,7 @@ function pkg_delete ($atype, $ids, $mergepkgid) {
 		$q.= "FROM CommentNotify, Users ";
 		$q.= "WHERE Users.ID = CommentNotify.UserID ";
 		$q.= "AND CommentNotify.UserID != " . uid_from_sid($_COOKIE['AURSID']) . " ";
-		$q.= "AND CommentNotify.PkgID = " . $pkgid;
+		$q.= "AND CommentNotify.PackageBaseID = " . pkgbase_from_pkgid($pkgid);
 		$result = $dbh->query($q);
 		$bcc = array();
 
@@ -960,8 +960,8 @@ function pkg_delete ($atype, $ids, $mergepkgid) {
 	if ($mergepkgid) {
 		/* Merge comments */
 		$q = "UPDATE PackageComments ";
-		$q.= "SET PackageID = " . intval($mergepkgid) . " ";
-		$q.= "WHERE PackageID IN (" . implode(",", $ids) . ")";
+		$q.= "SET PackageBaseID = " . intval($mergepkgbase) . " ";
+		$q.= "WHERE PackageBaseID IN (" . implode(",", $base_ids) . ")";
 		$dbh->exec($q);
 
 		/* Merge votes */
@@ -1188,18 +1188,18 @@ function user_voted($uid, $pkgid) {
 }
 
 /**
- * Determine if a user wants notifications for a specific package
+ * Determine if a user wants notifications for a specific package base
  *
  * @param string $uid User ID to check in the database
- * @param string $pkgid Package ID to check notifications for
+ * @param string $base_id Package base ID to check notifications for
  *
  * @return bool True if the user wants notifications, otherwise false
  */
-function user_notify($uid, $pkgid) {
+function user_notify($uid, $base_id) {
 	$dbh = DB::connect();
 
 	$q = "SELECT * FROM CommentNotify WHERE UserID = " . $dbh->quote($uid);
-	$q.= " AND PkgID = " . $dbh->quote($pkgid);
+	$q.= " AND PackageBaseID = " . $dbh->quote($base_id);
 	$result = $dbh->query($q);
 
 	if ($result->fetch(PDO::FETCH_NUM)) {
@@ -1224,6 +1224,7 @@ function pkg_notify ($atype, $ids, $action=true) {
 	}
 
 	$ids = sanitize_ids($ids);
+	$base_ids = pkgbase_from_pkgid($ids);
 	if (empty($ids)) {
 		return array(false, __("Couldn't add to notification list."));
 	}
@@ -1239,15 +1240,15 @@ function pkg_notify ($atype, $ids, $action=true) {
 	 * There currently shouldn't be multiple requests here, but the format
 	 * in which it's sent requires this.
 	 */
-	foreach ($ids as $pid) {
-		$q = "SELECT Name FROM Packages WHERE ID = $pid";
+	foreach ($base_ids as $bid) {
+		$q = "SELECT Name FROM PackageBases WHERE ID = $bid";
 		$result = $dbh->query($q);
 		if ($result) {
 			$row = $result->fetch(PDO::FETCH_NUM);
-			$pkgname = $row[0];
+			$basename = $row[0];
 		}
 		else {
-			$pkgname = '';
+			$basename = '';
 		}
 
 		if ($first)
@@ -1258,23 +1259,23 @@ function pkg_notify ($atype, $ids, $action=true) {
 
 		if ($action) {
 			$q = "SELECT COUNT(*) FROM CommentNotify WHERE ";
-			$q .= "UserID = $uid AND PkgID = $pid";
+			$q .= "UserID = $uid AND PackageBaseID = $bid";
 
 			/* Notification already added. Don't add again. */
 			$result = $dbh->query($q);
 			if ($result->fetchColumn() == 0) {
-				$q = "INSERT INTO CommentNotify (PkgID, UserID) VALUES ($pid, $uid)";
+				$q = "INSERT INTO CommentNotify (PackageBaseID, UserID) VALUES ($bid, $uid)";
 				$dbh->exec($q);
 			}
 
-			$output .= $pkgname;
+			$output .= $basename;
 		}
 		else {
-			$q = "DELETE FROM CommentNotify WHERE PkgID = $pid ";
+			$q = "DELETE FROM CommentNotify WHERE PackageBaseID = $bid ";
 			$q .= "AND UserID = $uid";
 			$dbh->exec($q);
 
-			$output .= $pkgname;
+			$output .= $basename;
 		}
 	}
 
diff --git a/web/template/pkg_comments.php b/web/template/pkg_comments.php
index 88e739e..820ba6e 100644
--- a/web/template/pkg_comments.php
+++ b/web/template/pkg_comments.php
@@ -1,6 +1,7 @@
 <?php
 $uid = uid_from_sid($SID);
-$count = package_comments_count($row['ID']);
+$base_id = pkgbase_from_pkgid($row['ID']);
+$count = package_comments_count($base_id);
 $pkgname = $row['Name'];
 ?>
 <div id="news">