3 if (!defined( 'MEDIAWIKI' ))
7 static function formatSummaryRow( $tags, $page ) {
9 return array('',array());
13 $tags = explode( ',', $tags );
14 $displayTags = array();
15 foreach( $tags as $tag ) {
16 $displayTags[] = self
::tagDescription( $tag );
17 $classes[] = "mw-tag-$tag";
20 return array( '(' . implode( ', ', $displayTags ) . ')', $classes );
23 static function tagDescription( $tag ) {
24 $msg = wfMsgExt( "tag-$tag", 'parseinline' );
25 if ( wfEmptyMsg( "tag-$tag", $msg ) ) {
26 return htmlspecialchars($tag);
31 ## Basic utility method to add tags to a particular change, given its rc_id, rev_id and/or log_id.
32 static function addTags( $tags, $rc_id=null, $rev_id=null, $log_id=null, $params = null ) {
33 if ( !is_array($tags) ) {
34 $tags = array( $tags );
37 $tags = array_filter( $tags ); // Make sure we're submitting all tags...
39 if (!$rc_id && !$rev_id && !$log_id) {
40 throw new MWException( "At least one of: RCID, revision ID, and log ID MUST be specified when adding a tag to a change!" );
43 $dbr = wfGetDB( DB_SLAVE
);
45 // Might as well look for rcids and so on.
47 $dbr = wfGetDB( DB_MASTER
); // Info might be out of date, somewhat fractionally, on slave.
49 $rc_id = $dbr->selectField( 'recentchanges', 'rc_id', array( 'rc_logid' => $log_id ), __METHOD__
);
51 $rc_id = $dbr->selectField( 'recentchanges', 'rc_id', array( 'rc_this_oldid' => $rev_id ), __METHOD__
);
53 } elseif (!$log_id && !$rev_id) {
54 $dbr = wfGetDB( DB_MASTER
); // Info might be out of date, somewhat fractionally, on slave.
55 $log_id = $dbr->selectField( 'recentchanges', 'rc_logid', array( 'rc_id' => $rc_id ), __METHOD__
);
56 $rev_id = $dbr->selectField( 'recentchanges', 'rc_this_oldid', array( 'rc_id' => $rc_id ), __METHOD__
);
59 $tsConds = array_filter( array( 'ts_rc_id' => $rc_id, 'ts_rev_id' => $rev_id, 'ts_log_id' => $log_id ) );
61 ## Update the summary row.
62 $prevTags = $dbr->selectField( 'tag_summary', 'ts_tags', $tsConds, __METHOD__
);
63 $prevTags = $prevTags ?
$prevTags : '';
64 $prevTags = array_filter( explode( ',', $prevTags ) );
65 $newTags = array_unique( array_merge( $prevTags, $tags ) );
69 if ( $prevTags == $newTags ) {
74 $dbw = wfGetDB( DB_MASTER
);
75 $dbw->replace( 'tag_summary', array( 'ts_rev_id', 'ts_rc_id', 'ts_log_id' ), array_filter( array_merge( $tsConds, array( 'ts_tags' => implode( ',', $newTags ) ) ) ), __METHOD__
);
77 // Insert the tags rows.
79 foreach( $tags as $tag ) { // Filter so we don't insert NULLs as zero accidentally.
80 $tagsRows[] = array_filter( array( 'ct_tag' => $tag, 'ct_rc_id' => $rc_id, 'ct_log_id' => $log_id, 'ct_rev_id' => $rev_id, 'ct_params' => $params ) );
83 $dbw->insert( 'change_tag', $tagsRows, __METHOD__
, array('IGNORE') );
89 * Applies all tags-related changes to a query.
90 * Handles selecting tags, and filtering.
91 * Needs $tables to be set up properly, so we can figure out which join conditions to use.
93 static function modifyDisplayQuery( &$tables, &$fields, &$conds, &$join_conds, $filter_tag = false ) {
96 if ($filter_tag === false) {
97 $filter_tag = $wgRequest->getVal( 'tagfilter' );
100 // Figure out which conditions can be done.
102 if ( in_array('recentchanges', $tables) ) {
103 $join_cond = 'rc_id';
104 } elseif( in_array('logging', $tables) ) {
105 $join_cond = 'log_id';
106 } elseif ( in_array('revision', $tables) ) {
107 $join_cond = 'rev_id';
109 throw new MWException( "Unable to determine appropriate JOIN condition for tagging." );
112 // JOIN on tag_summary
113 $tables[] = 'tag_summary';
114 $join_conds['tag_summary'] = array( 'LEFT JOIN', "ts_$join_cond=$join_cond" );
115 $fields[] = 'ts_tags';
118 // Somebody wants to filter on a tag.
119 // Add an INNER JOIN on change_tag
121 $tables[] = 'change_tag';
122 $join_conds['change_tag'] = array( 'INNER JOIN', "ct_$join_cond=$join_cond" );
123 $conds['ct_tag'] = $filter_tag;
128 * If $fullForm is set to false, then it returns an array of (label, form).
129 * If $fullForm is true, it returns an entire form.
131 static function buildTagFilterSelector( $selected='', $fullForm = false /* used to put a full form around the selector */ ) {
134 $data = array( wfMsgExt( 'tag-filter', 'parseinline' ), Xml
::input( 'tagfilter', 20, $selected ) );
140 $html = implode( ' ', $data );
141 $html .= "\n" . Xml
::element( 'input', array( 'type' => 'submit', 'value' => wfMsg( 'tag-filter-submit' ) ) );
142 $html .= "\n" . Xml
::hidden( 'title', $wgTitle-> getPrefixedText() );
143 $html = Xml
::tags( 'form', array( 'action' => $wgTitle->getLocalURL(), 'method' => 'get' ), $html );
148 /** Basically lists defined tags which count even if they aren't applied to anything */
149 static function listDefinedTags() {
150 $emptyTags = array();
153 $dbr = wfGetDB( DB_SLAVE
);
154 $res = $dbr->select( 'valid_tag', 'vt_tag', array(), __METHOD__
);
155 while( $row = $res->fetchObject() ) {
156 $emptyTags[] = $row->vt_tag
;
159 wfRunHooks( 'ListDefinedTags', array(&$emptyTags) );
161 return array_filter( array_unique( $emptyTags ) );