/**
* A query module to enumerate pages that belong to a category.
*
- * @addtogroup API
+ * @ingroup API
*/
class ApiQueryCategoryMembers extends ApiQueryGeneratorBase {
$this->addTables(array('page','categorylinks')); // must be in this order for 'USE INDEX'
// Not needed after bug 10280 is applied to servers
if($params['sort'] == 'timestamp')
- {
$this->addOption('USE INDEX', 'cl_timestamp');
- // cl_timestamp will be added by addWhereRange() later
- $this->addOption('ORDER BY', 'cl_to');
- }
else
- {
- $dir = ($params['dir'] == 'desc' ? ' DESC' : '');
$this->addOption('USE INDEX', 'cl_sortkey');
- $this->addOption('ORDER BY', 'cl_to, cl_sortkey' . $dir . ', cl_from' . $dir);
- }
$this->addWhere('cl_from=page_id');
$this->setContinuation($params['continue'], $params['dir']);
$this->addWhereFld('cl_to', $categoryTitle->getDBkey());
- $this->addWhereFld('page_namespace', $params['namespace']);
+ # Scanning large datasets for rare categories sucks, and I already told
+ # how to have efficient subcategory access :-) ~~~~ (oh well, domas)
+ global $wgMiserMode;
+ $miser_ns = array();
+ if ($wgMiserMode) {
+ $miser_ns = $params['namespace'];
+ } else {
+ $this->addWhereFld('page_namespace', $params['namespace']);
+ }
if($params['sort'] == 'timestamp')
$this->addWhereRange('cl_timestamp', ($params['dir'] == 'asc' ? 'newer' : 'older'), $params['start'], $params['end']);
+ else
+ {
+ $this->addWhereRange('cl_sortkey', ($params['dir'] == 'asc' ? 'newer' : 'older'), $params['startsortkey'], $params['endsortkey']);
+ $this->addWhereRange('cl_from', ($params['dir'] == 'asc' ? 'newer' : 'older'), null, null);
+ }
$limit = $params['limit'];
$this->addOption('LIMIT', $limit +1);
break;
}
- $lastSortKey = $row->cl_sortkey; // detect duplicate sortkeys
+ // Since domas won't tell anyone what he told long ago, apply
+ // cmnamespace here. This means the query may return 0 actual
+ // results, but on the other hand it could save returning 5000
+ // useless results to the client. ~~~~
+ if (count($miser_ns) && !in_array($row->page_namespace, $miser_ns))
+ continue;
if (is_null($resultPageSet)) {
$vals = array();
$vals['pageid'] = intval($row->page_id);
if ($fld_title) {
$title = Title :: makeTitle($row->page_namespace, $row->page_title);
- $vals['ns'] = intval($title->getNamespace());
- $vals['title'] = $title->getPrefixedText();
+ ApiQueryBase::addTitleInfo($vals, $title);
}
if ($fld_sortkey)
$vals['sortkey'] = $row->cl_sortkey;
if ($fld_timestamp)
$vals['timestamp'] = wfTimestamp(TS_ISO_8601, $row->cl_timestamp);
- $data[] = $vals;
+ $fit = $this->getResult()->addValue(array('query', $this->getModuleName()),
+ null, $vals);
+ if(!$fit)
+ {
+ if ($params['sort'] == 'timestamp')
+ $this->setContinueEnumParameter('start', wfTimestamp(TS_ISO_8601, $row->cl_timestamp));
+ else
+ $this->setContinueEnumParameter('continue', $this->getContinueStr($row, $lastSortKey));
+ break;
+ }
} else {
$resultPageSet->processDbRow($row);
}
+ $lastSortKey = $row->cl_sortkey; // detect duplicate sortkeys
}
$db->freeResult($res);
if (is_null($resultPageSet)) {
- $this->getResult()->setIndexedTagName($data, 'cm');
- $this->getResult()->addValue('query', $this->getModuleName(), $data);
+ $this->getResult()->setIndexedTagName_internal(
+ array('query', $this->getModuleName()), 'cm');
}
}
if (is_null($continue))
return; // This is not a continuation request
- $continueList = explode('|', $continue);
- $hasError = count($continueList) != 2;
- $from = 0;
- if (!$hasError && strlen($continueList[1]) > 0) {
- $from = intval($continueList[1]);
- $hasError = ($from == 0);
- }
+ $pos = strrpos($continue, '|');
+ $sortkey = substr($continue, 0, $pos);
+ $fromstr = substr($continue, $pos + 1);
+ $from = intval($fromstr);
- if ($hasError)
+ if ($from == 0 && strlen($fromstr) > 0)
$this->dieUsage("Invalid continue param. You should pass the original value returned by the previous query", "badcontinue");
- $encSortKey = $this->getDB()->addQuotes($continueList[0]);
+ $encSortKey = $this->getDB()->addQuotes($sortkey);
$encFrom = $this->getDB()->addQuotes($from);
$op = ($dir == 'desc' ? '<' : '>');
),
'end' => array(
ApiBase :: PARAM_TYPE => 'timestamp'
- )
+ ),
+ 'startsortkey' => null,
+ 'endsortkey' => null,
);
}
public function getParamDescription() {
- return array (
+ global $wgMiserMode;
+ $desc = array (
'title' => 'Which category to enumerate (required). Must include Category: prefix',
'prop' => 'What pieces of information to include',
'namespace' => 'Only include pages in these namespaces',
'dir' => 'In which direction to sort',
'start' => 'Timestamp to start listing from. Can only be used with cmsort=timestamp',
'end' => 'Timestamp to end listing at. Can only be used with cmsort=timestamp',
+ 'startsortkey' => 'Sortkey to start listing from. Can only be used with cmsort=sortkey',
+ 'endsortkey' => 'Sortkey to end listing at. Can only be used with cmsort=sortkey',
'continue' => 'For large categories, give the value retured from previous query',
'limit' => 'The maximum number of pages to return.',
);
+ if ($wgMiserMode) {
+ $desc['namespace'] = array(
+ $desc['namespace'],
+ 'NOTE: Due to $wgMiserMode, using this may result in fewer than "limit" results',
+ 'returned before continuing; in extreme cases, zero results may be returned.',
+ );
+ }
+ return $desc;
}
public function getDescription() {
dépôts / lhc / web / wiklou.git / blobdiff