* http://www.gnu.org/copyleft/gpl.html
*/
-if (!defined('MEDIAWIKI')) {
+if ( !defined( 'MEDIAWIKI' ) ) {
// Eclipse helper - will be ignored in production
- require_once ('ApiQueryBase.php');
+ require_once ( 'ApiQueryBase.php' );
}
/**
* Query module to enumerate links from all pages together.
- *
- * @addtogroup API
+ *
+ * @ingroup API
*/
class ApiQueryAllLinks extends ApiQueryGeneratorBase {
- public function __construct($query, $moduleName) {
- parent :: __construct($query, $moduleName, 'al');
+ public function __construct( $query, $moduleName ) {
+ parent :: __construct( $query, $moduleName, 'al' );
}
public function execute() {
$this->run();
}
- public function executeGenerator($resultPageSet) {
- $this->run($resultPageSet);
+ public function getCacheMode( $params ) {
+ return 'public';
+ }
+
+ public function executeGenerator( $resultPageSet ) {
+ $this->run( $resultPageSet );
}
- private function run($resultPageSet = null) {
+ private function run( $resultPageSet = null ) {
$db = $this->getDB();
$params = $this->extractRequestParams();
- $prop = array_flip($params['prop']);
- $fld_ids = isset($prop['ids']);
- $fld_title = isset($prop['title']);
+ $prop = array_flip( $params['prop'] );
+ $fld_ids = isset( $prop['ids'] );
+ $fld_title = isset( $prop['title'] );
- if ($params['unique']) {
- if (!is_null($resultPageSet))
- $this->dieUsage($this->getModuleName() . ' cannot be used as a generator in unique links mode', 'params');
- if ($fld_ids)
- $this->dieUsage($this->getModuleName() . ' cannot return corresponding page ids in unique links mode', 'params');
- $this->addOption('DISTINCT');
+ if ( $params['unique'] ) {
+ if ( !is_null( $resultPageSet ) )
+ $this->dieUsage( $this->getModuleName() . ' cannot be used as a generator in unique links mode', 'params' );
+ if ( $fld_ids )
+ $this->dieUsage( $this->getModuleName() . ' cannot return corresponding page ids in unique links mode', 'params' );
+ $this->addOption( 'DISTINCT' );
}
- $this->addTables('pagelinks');
- $this->addWhereFld('pl_namespace', $params['namespace']);
+ $this->addTables( 'pagelinks' );
+ $this->addWhereFld( 'pl_namespace', $params['namespace'] );
- if (!is_null($params['from']))
- $this->addWhere('pl_title>=' . $db->addQuotes(ApiQueryBase :: titleToKey($params['from'])));
- if (isset ($params['prefix']))
- $this->addWhere("pl_title LIKE '" . $db->escapeLike(ApiQueryBase :: titleToKey($params['prefix'])) . "%'");
-
- if (is_null($resultPageSet)) {
- $this->addFields(array (
- 'pl_namespace',
- 'pl_title'
- ));
- $this->addFieldsIf('pl_from', $fld_ids);
- } else {
- $this->addFields('pl_from');
- $pageids = array();
+ if ( !is_null( $params['from'] ) && !is_null( $params['continue'] ) )
+ $this->dieUsage( 'alcontinue and alfrom cannot be used together', 'params' );
+ if ( !is_null( $params['continue'] ) )
+ {
+ $arr = explode( '|', $params['continue'] );
+ if ( count( $arr ) != 2 )
+ $this->dieUsage( "Invalid continue parameter", 'badcontinue' );
+ $from = $this->getDB()->strencode( $this->titleToKey( $arr[0] ) );
+ $id = intval( $arr[1] );
+ $this->addWhere( "pl_title > '$from' OR " .
+ "(pl_title = '$from' AND " .
+ "pl_from > $id)" );
}
- $this->addOption('USE INDEX', 'pl_namespace');
+ if ( !is_null( $params['from'] ) )
+ $this->addWhere( 'pl_title>=' . $db->addQuotes( $this->titlePartToKey( $params['from'] ) ) );
+ if ( isset ( $params['prefix'] ) )
+ $this->addWhere( 'pl_title' . $db->buildLike( $this->titlePartToKey( $params['prefix'] ), $db->anyString() ) );
+
+ $this->addFields( array (
+ 'pl_title',
+ ) );
+ $this->addFieldsIf( 'pl_from', !$params['unique'] );
+
+ $this->addOption( 'USE INDEX', 'pl_namespace' );
$limit = $params['limit'];
- $this->addOption('LIMIT', $limit+1);
- $this->addOption('ORDER BY', 'pl_namespace, pl_title');
+ $this->addOption( 'LIMIT', $limit + 1 );
+ if ( $params['unique'] )
+ $this->addOption( 'ORDER BY', 'pl_title' );
+ else
+ $this->addOption( 'ORDER BY', 'pl_title, pl_from' );
- $res = $this->select(__METHOD__);
+ $res = $this->select( __METHOD__ );
- $data = array ();
+ $pageids = array ();
$count = 0;
- while ($row = $db->fetchObject($res)) {
- if (++ $count > $limit) {
+ $result = $this->getResult();
+ while ( $row = $db->fetchObject( $res ) ) {
+ if ( ++ $count > $limit ) {
// We've reached the one extra which shows that there are additional pages to be had. Stop here...
// TODO: Security issue - if the user has no right to view next title, it will still be shown
- $this->setContinueEnumParameter('from', ApiQueryBase :: keyToTitle($row->pl_title));
+ if ( $params['unique'] )
+ $this->setContinueEnumParameter( 'from', $this->keyToTitle( $row->pl_title ) );
+ else
+ $this->setContinueEnumParameter( 'continue', $this->keyToTitle( $row->pl_title ) . "|" . $row->pl_from );
break;
}
- if (is_null($resultPageSet)) {
+ if ( is_null( $resultPageSet ) ) {
$vals = array();
- if ($fld_ids)
- $vals['fromid'] = intval($row->pl_from);
- if ($fld_title) {
- $title = Title :: makeTitle($row->pl_namespace, $row->pl_title);
- $vals['ns'] = intval($title->getNamespace());
- $vals['title'] = $title->getPrefixedText();
+ if ( $fld_ids )
+ $vals['fromid'] = intval( $row->pl_from );
+ if ( $fld_title ) {
+ $title = Title :: makeTitle( $params['namespace'], $row->pl_title );
+ ApiQueryBase::addTitleInfo( $vals, $title );
+ }
+ $fit = $result->addValue( array( 'query', $this->getModuleName() ), null, $vals );
+ if ( !$fit )
+ {
+ if ( $params['unique'] )
+ $this->setContinueEnumParameter( 'from', $this->keyToTitle( $row->pl_title ) );
+ else
+ $this->setContinueEnumParameter( 'continue', $this->keyToTitle( $row->pl_title ) . "|" . $row->pl_from );
+ break;
}
- $data[] = $vals;
} else {
$pageids[] = $row->pl_from;
}
}
- $db->freeResult($res);
+ $db->freeResult( $res );
- if (is_null($resultPageSet)) {
- $result = $this->getResult();
- $result->setIndexedTagName($data, 'l');
- $result->addValue('query', $this->getModuleName(), $data);
+ if ( is_null( $resultPageSet ) ) {
+ $result->setIndexedTagName_internal( array( 'query', $this->getModuleName() ), 'l' );
} else {
- $resultPageSet->populateFromPageIDs($pageids);
+ $resultPageSet->populateFromPageIDs( $pageids );
}
}
- protected function getAllowedParams() {
+ public function getAllowedParams() {
return array (
+ 'continue' => null,
'from' => null,
'prefix' => null,
'unique' => false,
);
}
- protected function getParamDescription() {
+ public function getParamDescription() {
return array (
'from' => 'The page title to start enumerating from.',
'prefix' => 'Search for all page titles that begin with this value.',
'unique' => 'Only show unique links. Cannot be used with generator or prop=ids',
'prop' => 'What pieces of information to include',
'namespace' => 'The namespace to enumerate.',
- 'limit' => 'How many total links to return.'
+ 'limit' => 'How many total links to return.',
+ 'continue' => 'When more results are available, use this to continue.',
);
}
- protected function getDescription() {
+ public function getDescription() {
return 'Enumerate all links that point to a given namespace';
}
+
+ public function getPossibleErrors() {
+ return array_merge( parent::getPossibleErrors(), array(
+ array( 'code' => 'params', 'info' => $this->getModuleName() . ' cannot be used as a generator in unique links mode' ),
+ array( 'code' => 'params', 'info' => $this->getModuleName() . ' cannot return corresponding page ids in unique links mode' ),
+ array( 'code' => 'params', 'info' => 'alcontinue and alfrom cannot be used together' ),
+ array( 'code' => 'badcontinue', 'info' => 'Invalid continue parameter' ),
+ ) );
+ }
protected function getExamples() {
return array (
}
public function getVersion() {
- return __CLASS__ . ': $Id: ApiQueryAllLinks.php 24453 2007-07-30 08:09:15Z yurik $';
+ return __CLASS__ . ': $Id: ApiQueryAllLinks.php 69932 2010-07-26 08:03:21Z tstarling $';
}
}
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff