3 * Implements Special:Disambiguations
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6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
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16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
21 * @ingroup SpecialPage
25 * A special page that lists pages containing links to disambiguations pages
27 * @ingroup SpecialPage
29 class DisambiguationsPage
extends QueryPage
{
31 function __construct( $name = 'Disambiguations' ) {
32 parent
::__construct( $name );
35 function isExpensive() {
39 function isSyndicated() {
43 function getPageHeader() {
44 return $this->msg( 'disambiguations-text' )->parseAsBlock();
48 * @return string|bool False on failure
50 function getQueryFromLinkBatch() {
51 $dbr = wfGetDB( DB_SLAVE
);
52 $dMsgText = $this->msg( 'disambiguationspage' )->inContentLanguage()->text();
53 $linkBatch = new LinkBatch
;
55 # If the text can be treated as a title, use it verbatim.
56 # Otherwise, pull the titles from the links table
57 $dp = Title
::newFromText( $dMsgText );
59 if( $dp->getNamespace() != NS_TEMPLATE
) {
60 # @todo FIXME: We assume the disambiguation message is a template but
61 # the page can potentially be from another namespace :/
62 wfDebug( "Mediawiki:disambiguationspage message does not refer to a template!\n" );
64 $linkBatch->addObj( $dp );
66 # Get all the templates linked from the Mediawiki:Disambiguationspage
67 $disPageObj = Title
::makeTitleSafe( NS_MEDIAWIKI
, 'disambiguationspage' );
69 array( 'pagelinks', 'page' ),
71 array( 'page_id = pl_from',
72 'pl_namespace' => NS_TEMPLATE
,
73 'page_namespace' => $disPageObj->getNamespace(),
74 'page_title' => $disPageObj->getDBkey()
77 foreach ( $res as $row ) {
78 $linkBatch->addObj( Title
::makeTitle( NS_TEMPLATE
, $row->pl_title
));
81 $set = $linkBatch->constructSet( 'tl', $dbr );
83 if( $set === false ) {
84 # We must always return a valid SQL query, but this way
85 # the DB will always quickly return an empty result
87 wfDebug( "Mediawiki:disambiguationspage message does not link to any templates!\n" );
92 function getQueryInfo() {
93 // @todo FIXME: What are pagelinks and p2 doing here?
102 'namespace' => 'p1.page_namespace',
103 'title' => 'p1.page_title',
107 $this->getQueryFromLinkBatch(),
108 'p1.page_id = tl_from',
109 'pl_namespace = p1.page_namespace',
110 'pl_title = p1.page_title',
111 'p2.page_id = pl_from',
112 'p2.page_namespace' => MWNamespace
::getContentNamespaces()
117 function getOrderFields() {
118 return array( 'tl_namespace', 'tl_title', 'value' );
121 function sortDescending() {
126 * Fetch links and cache their existence
128 * @param $db DatabaseBase
131 function preprocessResults( $db, $res ) {
132 if ( !$res->numRows() ) {
136 $batch = new LinkBatch
;
137 foreach ( $res as $row ) {
138 $batch->add( $row->namespace, $row->title
);
145 function formatResult( $skin, $result ) {
146 $title = Title
::newFromID( $result->value
);
147 $dp = Title
::makeTitle( $result->namespace, $result->title
);
149 $from = Linker
::link( $title );
150 $edit = Linker
::link(
152 $this->msg( 'parentheses', $this->msg( 'editlink' )->text() )->escaped(),
154 array( 'redirect' => 'no', 'action' => 'edit' )
156 $arr = $this->getLanguage()->getArrow();
157 $to = Linker
::link( $dp );
159 return "$from $edit $arr $to";
162 protected function getGroupName() {