/**
* Gets all the filters specified for a category.
*/
static function loadFiltersForCategory($category)
{
$filters = array();
$title = Title::newFromText($category, NS_CATEGORY);
$pageId = $title->getArticleID();
$dbr = wfGetDB(DB_SLAVE);
$res = $dbr->select('page_props', array('pp_value'), array('pp_page' => $pageId, 'pp_propname' => 'SDFilters'));
while ($row = $dbr->fetchRow($res)) {
// There should only be one row.
$filtersStr = $row['pp_value'];
$filtersInfo = unserialize($filtersStr);
foreach ($filtersInfo as $filterName => $filterValues) {
$curFilter = new SDFilter();
$curFilter->setName($filterName);
foreach ($filterValues as $key => $value) {
if ($key == 'property') {
$curFilter->setProperty($value);
$curFilter->loadPropertyTypeFromProperty();
} elseif ($key == 'category') {
$curFilter->setCategory($value);
} elseif ($key == 'requires') {
$curFilter->addRequiredFilter($value);
}
}
$filters[] = $curFilter;
}
}
// Get "legacy" filters defined via the SMW special property
// "Has filter" and the Filter: namespace.
$filter_names = SDUtils::getValuesForProperty(str_replace(' ', '_', $category), NS_CATEGORY, '_SD_F');
foreach ($filter_names as $filter_name) {
$filter = SDFilter::load($filter_name);
$filter->required_filters = SDUtils::getValuesForProperty($filter_name, SD_NS_FILTER, '_SD_RF', SD_SP_REQUIRES_FILTER, SD_NS_FILTER);
$filters[] = $filter;
}
// Read from the Page Schemas schema for this category, if
// it exists, and add any filters defined there.
if (class_exists('PSSchema')) {
$pageSchemaObj = new PSSchema($category);
if ($pageSchemaObj->isPSDefined()) {
$filters_ps = SDFilter::loadAllFromPageSchema($pageSchemaObj);
$result_filters = array_merge($filters, $filters_ps);
return $result_filters;
}
}
return $filters;
}
