92 lines
2.3 KiB
PHP
92 lines
2.3 KiB
PHP
<?php
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class AddAliasEvent extends Event {
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var $oldtag;
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var $newtag;
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public function AddAliasEvent($oldtag, $newtag) {
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$this->oldtag = $oldtag;
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$this->newtag = $newtag;
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}
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}
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class AliasEditor extends Extension {
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// event handler {{{
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public function receive_event($event) {
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if(is_a($event, 'PageRequestEvent') && ($event->page == "alias")) {
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global $user;
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if($user->is_admin()) {
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if($event->get_arg(0) == "add") {
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if(isset($_POST['oldtag']) && isset($_POST['newtag'])) {
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send_event(new AddAliasEvent($_POST['oldtag'], $_POST['newtag']));
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}
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}
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else if($event->get_arg(0) == "remove") {
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if(isset($_POST['oldtag'])) {
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global $database;
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$database->db->Execute("DELETE FROM aliases WHERE oldtag=?", array($_POST['oldtag']));
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global $page;
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$page->set_mode("redirect");
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$page->set_redirect(make_link("admin"));
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}
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}
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}
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}
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if(is_a($event, 'AdminBuildingEvent')) {
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global $page;
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$page->add_main_block(new Block("Edit Aliases", $this->build_aliases()));
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}
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if(is_a($event, 'AddAliasEvent')) {
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global $database;
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$database->db->Execute("INSERT INTO aliases(oldtag, newtag) VALUES(?, ?)", array($event->oldtag, $event->newtag));
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global $page;
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$page->set_mode("redirect");
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$page->set_redirect(make_link("admin"));
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}
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}
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// }}}
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// admin page HTML {{{
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private function build_aliases() {
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global $database;
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$h_aliases = "";
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$aliases = $database->db->GetAssoc("SELECT oldtag, newtag FROM aliases");
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foreach($aliases as $old => $new) {
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$h_old = html_escape($old);
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$h_new = html_escape($new);
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$h_aliases .= "
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<tr>
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<td>$h_old</td>
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<td>$h_new</td>
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<td>
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<form action='".make_link("alias/remove")."' method='POST'>
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<input type='hidden' name='oldtag' value='$h_old'>
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<input type='submit' value='Remove'>
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</form>
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</td>
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</tr>
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";
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}
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$html = "
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<table border='1'>
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<thead><td>From</td><td>To</td><td>Action</td></thead>
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$h_aliases
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<tr>
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<form action='".make_link("alias/add")."' method='POST'>
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<td><input type='text' name='oldtag'></td>
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<td><input type='text' name='newtag'></td>
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<td><input type='submit' value='Add'></td>
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</form>
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</tr>
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</table>
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";
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return $html;
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}
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// }}}
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}
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add_event_listener(new AliasEditor());
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?>
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