<?php
-include_once ( "LogPage.php" ) ;
+require_once ( "Feed.php" );
# This is a class for doing query pages; since they're almost all the same,
# we factor out some of the functionality into a superclass, and let
class QueryPage {
# Subclasses return their name here. Make sure the name is also
- # specified in Language.php, both in the $wgValidSpecialPagesEn
- # variable, and as a language message param.
+ # specified in SpecialPage.php and in Language.php as a language message param.
function getName() {
return "";
}
- # Subclasses return a SQL query here.
+ # Subclasses return an SQL query here.
+ #
+ # Note that the query itself should return the following three columns:
+ # 'type' (your special page's name), 'namespace, 'title', and 'value'
+ # (numeric) *in that order*. These may be stored in the querycache table
+ # for expensive queries, and that cached data will be returned sometimes,
+ # so the presence of extra fields can't be relied on.
+ #
+ # Don't include an ORDER or LIMIT clause, this will be added.
+
+ function getSQL() {
+ return "SELECT 'sample' as type, 0 as namespace, 'Sample result' as title, 42 as value";
+ }
+
+ # Override to sort by increasing values
+ function sortDescending() {
+ return true;
+ }
- function getSQL( $offset, $limit ) {
- return "";
+ # Don't override this unless you're darn sure.
+ function getOrderLimit( $offset, $limit ) {
+ return " ORDER BY value " .
+ ($this->sortDescending() ? "DESC" : "")
+ . " LIMIT {$offset}, {$limit}";
}
# Is this query expensive (for some definition of expensive)? Then we
function formatResult( $skin, $result ) {
return "";
}
-
+
# This is the actual workhorse. It does everything needed to make a
# real, honest-to-gosh query page.
-
+
function doQuery( $offset, $limit ) {
-
- global $wgUser, $wgOut, $wgLang, $wgMiserMode;
+ global $wgUser, $wgOut, $wgLang, $wgRequest;
+ global $wgMiserMode;
$sname = $this->getName();
$fname = get_class($this) . "::doQuery";
+ $sql = $this->getSQL( $offset, $limit );
- if ( $this->isExpensive( ) ) {
-
- $vsp = $wgLang->getValidSpecialPages();
- $logpage = new LogPage( "!" . $vsp[$sname] );
- $logpage->mUpdateRecentChanges = false;
-
- if ( $wgMiserMode ) {
- $logpage->showAsDisabledPage();
- return;
+ $wgOut->setSyndicated( true );
+
+ if ( $this->isExpensive() ) {
+ $type = wfStrencode( $sname );
+ $recache = $wgRequest->getBool( "recache" );
+ if( $recache ) {
+ # Clear out any old cached data
+ $res = wfQuery( "DELETE FROM querycache WHERE qc_type='$type'", DB_WRITE, $fname );
+
+ # Save results into the querycache table
+ $maxstored = 1000;
+ $res = wfQuery(
+ "INSERT INTO querycache(qc_type,qc_namespace,qc_title,qc_value) " .
+ $this->getSQL() .
+ $this->getOrderLimit( 0, $maxstored ),
+ DB_WRITE, $fname );
+ }
+ if( $wgMiserMode || $recache ) {
+ $sql =
+ "SELECT qc_type as type, qc_namespace as namespace,qc_title as title, qc_value as value
+ FROM querycache WHERE qc_type='$type'";
+ }
+ if( $wgMiserMode ) {
+ $wgOut->addWikiText( wfMsg( "perfcached" ) );
}
}
- $sql = $this->getSQL( $offset, $limit );
-
- $res = wfQuery( $sql, DB_READ, $fname );
-
+ $res = wfQuery( $sql . $this->getOrderLimit( $offset, $limit ), DB_READ, $fname );
+
+ $num = wfNumRows($res);
+
$sk = $wgUser->getSkin( );
- $top = wfShowingResults( $offset, $limit );
+ $top = wfShowingResults( $offset, $num);
$wgOut->addHTML( "<p>{$top}\n" );
- $sl = wfViewPrevNext( $offset, $limit, $wgLang->specialPage( $sname ) );
- $wgOut->addHTML( "<br>{$sl}\n" );
+ # often disable 'next' link when we reach the end
+ if($num < $limit) { $atend = true; } else { $atend = false; }
+
+ $sl = wfViewPrevNext( $offset, $limit , $wgLang->specialPage( $sname ), "" ,$atend );
+ $wgOut->addHTML( "<br />{$sl}</p>\n" );
- $s = "<ol start=" . ( $offset + 1 ) . ">";
+ $s = "<ol start='" . ( $offset + 1 ) . "'>";
while ( $obj = wfFetchObject( $res ) ) {
$format = $this->formatResult( $sk, $obj );
$s .= "<li>{$format}</li>\n";
wfFreeResult( $res );
$s .= "</ol>";
$wgOut->addHTML( $s );
- $wgOut->addHTML( "<p>{$sl}\n" );
+ $wgOut->addHTML( "<p>{$sl}</p>\n" );
+ }
+
+ # Similar to above, but packaging in a syndicated feed instead of a web page
+ function doFeed( $class = "" ) {
+ global $wgFeedClasses;
+ global $wgOut, $wgLanguageCode, $wgLang;
+ if( isset($wgFeedClasses[$class]) ) {
+ $feed = new $wgFeedClasses[$class](
+ $this->feedTitle(),
+ $this->feedDesc(),
+ $this->feedUrl() );
+ $feed->outHeader();
+
+ $sql = $this->getSQL( 0, 50 );
+ $res = wfQuery( $sql, DB_READ, "QueryPage::doFeed" );
+ while( $obj = wfFetchObject( $res ) ) {
+ $item = $this->feedResult( $obj );
+ if( $item ) $feed->outItem( $item );
+ }
+ wfFreeResult( $res );
- # Saving cache
+ $feed->outFooter();
+ return true;
+ } else {
+ return false;
+ }
+ }
- if ( $this->isExpensive() && $offset == 0 && $limit >= 50 ) {
- $logpage->replaceContent( $s );
+ # Override for custom handling. If the titles/links are ok, just do feedItemDesc()
+ function feedResult( $row ) {
+ if( !isset( $row->title ) ) {
+ return NULL;
+ }
+ $title = Title::MakeTitle( IntVal( $row->namespace ), $row->title );
+ if( $title ) {
+ if( isset( $row->timestamp ) ) {
+ $date = $row->timestamp;
+ } else {
+ $date = "";
+ }
+
+ $comments = "";
+ if( $title ) {
+ $talkpage = $title->getTalkPage();
+ $comments = $talkpage->getFullURL();
+ }
+
+ return new FeedItem(
+ $title->getText(),
+ $this->feedItemDesc( $row ),
+ $title->getFullURL(),
+ $date,
+ $this->feedItemAuthor( $row ),
+ $comments);
+ } else {
+ return NULL;
+ }
+ }
+
+ function feedItemDesc( $row ) {
+ $text = "";
+ if( isset( $row->comment ) ) {
+ $text = htmlspecialchars( $row->comment );
+ } else {
+ $text = "";
+ }
+
+ if( isset( $row->text ) ) {
+ $text = "<p>" . htmlspecialchars( wfMsg( "summary" ) ) . ": " . $text . "</p>\n<hr />\n<div>" .
+ nl2br( htmlspecialchars( $row->text ) ) . "</div>";;
+ }
+ return $text;
+ }
+
+ function feedItemAuthor( $row ) {
+ if( isset( $row->user_text ) ) {
+ return $row->user_text;
+ } else {
+ return "";
}
}
+
+ function feedTitle() {
+ global $wgLanguageCode, $wgSitename, $wgLang;
+ $page = SpecialPage::getPage( $this->getName() );
+ $desc = $page->getDescription();
+ return "$wgSitename - $desc [$wgLanguageCode]";
+ }
+
+ function feedDesc() {
+ return wfMsg( "fromwikipedia" );
+ }
+
+ function feedUrl() {
+ global $wgLang;
+ $title = Title::MakeTitle( NS_SPECIAL, $this->getName() );
+ return $title->getFullURL();
+ }
}
# This is a subclass for very simple queries that are just looking for page
class PageQueryPage extends QueryPage {
function formatResult( $skin, $result ) {
- return $skin->makeKnownLink( $result->cur_title, "" );
+ $nt = Title::makeTitle( $result->namespace, $result->title );
+ return $skin->makeKnownLinkObj( $nt, "" );
}
}
dépôts / lhc / web / wiklou.git / blobdiff