oldtag = $oldtag;
$this->newtag = $newtag;
}
}
class AliasEditor extends Extension {
// event handler {{{
public function receive_event($event) {
if(is_a($event, 'PageRequestEvent') && ($event->page == "alias")) {
global $user;
if($user->is_admin()) {
if($event->get_arg(0) == "add") {
if(isset($_POST['oldtag']) && isset($_POST['newtag'])) {
send_event(new AddAliasEvent($_POST['oldtag'], $_POST['newtag']));
}
}
else if($event->get_arg(0) == "remove") {
if(isset($_POST['oldtag'])) {
global $database;
$database->Execute("DELETE FROM aliases WHERE oldtag=?", array($_POST['oldtag']));
global $page;
$page->set_mode("redirect");
$page->set_redirect(make_link("admin"));
}
}
else if($event->get_arg(0) == "list") {
global $page;
$page->set_title("Alias List");
$page->set_heading("Alias List");
$page->add_main_block(new Block("Aliases", $this->build_aliases()));
}
else if($event->get_arg(0) == "export") {
global $page;
$page->set_mode("data");
$page->set_type("text/plain");
$page->set_data($this->get_alias_csv());
}
}
}
if(is_a($event, 'AddAliasEvent')) {
global $database;
$database->Execute("INSERT INTO aliases(oldtag, newtag) VALUES(?, ?)", array($event->oldtag, $event->newtag));
global $page;
$page->set_mode("redirect");
$page->set_redirect(make_link("admin"));
}
if(is_a($event, 'UserBlockBuildingEvent')) {
if($event->user->is_admin()) {
$event->add_link("Alias Editor", make_link("alias/list"));
}
}
}
// }}}
// admin page HTML {{{
private function build_aliases() {
global $database;
$h_aliases = "";
$aliases = $database->db->GetAssoc("SELECT oldtag, newtag FROM aliases");
foreach($aliases as $old => $new) {
$h_old = html_escape($old);
$h_new = html_escape($new);
$h_aliases .= "
| $h_old |
$h_new |
|
";
}
$html = "
Export
";
return $html;
}
private function get_alias_csv() {
global $database;
$csv = "";
$aliases = $database->db->GetAssoc("SELECT oldtag, newtag FROM aliases");
foreach($aliases as $old => $new) {
$csv .= "$old,$new\n";
}
return $csv;
}
// }}}
}
add_event_listener(new AliasEditor());
?>