3 include_once ( "LogPage.php" ) ;
4 include_once ( "Feed.php" );
6 # This is a class for doing query pages; since they're almost all the same,
7 # we factor out some of the functionality into a superclass, and let
8 # subclasses derive from it.
11 # Subclasses return their name here. Make sure the name is also
12 # specified in Language.php, both in the $wgValidSpecialPagesEn
13 # variable, and as a language message param.
19 # Subclasses return a SQL query here.
21 function getSQL( $offset, $limit ) {
25 # Is this query expensive (for some definition of expensive)? Then we
26 # don't let it run in miser mode. $wgDisableQueryPages causes all query
27 # pages to be declared expensive. Some query pages are always expensive.
28 function isExpensive( ) {
29 global $wgDisableQueryPages;
30 return $wgDisableQueryPages;
33 # Formats the results of the query for display. The skin is the current
34 # skin; you can use it for making links. The result is a single row of
35 # result data. You should be able to grab SQL results off of it.
37 function formatResult( $skin, $result ) {
41 # This is the actual workhorse. It does everything needed to make a
42 # real, honest-to-gosh query page.
44 function doQuery( $offset, $limit ) {
46 global $wgUser, $wgOut, $wgLang, $wgMiserMode;
48 $sname = $this->getName();
49 $fname = get_class($this) . "::doQuery";
51 if ( $this->isExpensive( ) ) {
53 $vsp = $wgLang->getValidSpecialPages();
54 $logpage = new LogPage( "!" . $vsp[$sname] );
55 $logpage->mUpdateRecentChanges
= false;
58 $logpage->showAsDisabledPage();
63 $sql = $this->getSQL( $offset, $limit );
65 $res = wfQuery( $sql, DB_READ
, $fname );
67 $sk = $wgUser->getSkin( );
69 $top = wfShowingResults( $offset, $limit );
70 $wgOut->addHTML( "<p>{$top}\n" );
72 $sl = wfViewPrevNext( $offset, $limit, $wgLang->specialPage( $sname ) );
73 $wgOut->addHTML( "<br>{$sl}\n" );
75 $s = "<ol start=" . ( $offset +
1 ) . ">";
76 while ( $obj = wfFetchObject( $res ) ) {
77 $format = $this->formatResult( $sk, $obj );
78 $s .= "<li>{$format}</li>\n";
82 $wgOut->addHTML( $s );
83 $wgOut->addHTML( "<p>{$sl}\n" );
87 if ( $this->isExpensive() && $offset == 0 && $limit >= 50 ) {
88 $logpage->replaceContent( $s );
92 # Similar to above, but packaging in a syndicated feed instead of a web page
93 function doFeed( $class = "" ) {
94 global $wgFeedClasses;
95 global $wgOut, $wgLanguageCode, $wgLang;
96 if( $class == "rss" ) {
105 $sql = $this->getSQL( 0, 50 );
106 $res = wfQuery( $sql, DB_READ
, "QueryPage::doFeed" );
107 while( $obj = wfFetchObject( $res ) ) {
108 $item = $this->feedResult( $obj );
109 if( $item ) $feed->outItem( $item );
111 wfFreeResult( $res );
120 # Override for custom handling. If the titles/links are ok, just do feedItemDesc()
121 function feedResult( $row ) {
122 if( isset( $row->cur_title
) ) {
123 $title = Title
::MakeTitle( $row->cur_namespace
, $row->cur_title
);
124 } elseif( isset( $row->old_title
) ) {
125 $title = Title
::MakeTitle( $row->old_namespace
, $row->old_title
);
126 } elseif( isset( $row->rc_title
) ) {
127 $title = Title
::MakeTitle( $row->rc_namespace
, $row->rc_title
);
133 if( isset( $row->cur_timestamp
) ) {
134 $date = $row->cur_timestamp
;
135 } elseif( isset( $row->old_timestamp
) ) {
136 $date = $row->old_timestamp
;
137 } elseif( isset( $row->rc_cur_timestamp
) ) {
138 $date = $row->rc_cur_timestamp
;
142 $this->feedItemDesc( $row ),
143 $title->getURL( "", false, true ) ,
150 function feedItemDesc( $row ) {
151 if( isset( $row->cur_comment
) ) {
152 return $row->cur_comment
;
153 } elseif( isset( $row->old_comment
) ) {
154 return $row->old_comment
;
155 } elseif( isset( $row->rc_comment
) ) {
156 return $row->rc_comment
;
161 function feedTitle() {
162 global $wgLanguageCode, $wgSitename, $wgLang;
163 $pages = $wgLang->getValidSpecialPages();
164 $title = $pages[$this->getName()];
165 return "$wgSitename - $title [$wgLanguageCode]";
168 function feedDesc() {
169 return wfMsg( "fromwikipedia" );
174 return wfFullUrl( $wgLang->SpecialPage( $this->getName() ) );
178 # This is a subclass for very simple queries that are just looking for page
179 # titles that match some criteria. It formats each result item as a link to
182 class PageQueryPage
extends QueryPage
{
184 function formatResult( $skin, $result ) {
185 return $skin->makeKnownLink( $result->cur_title
, "" );