/**
* Returns a LabelDescriptionLookup where terms are prefetched for the given
* entity ids with a language fallback chain applied for the given language.
*
* @param Language $language
* @param EntityId[] $entityIds Array of entity ids that should be prefetched. Only relevant
* when a TermBuffer was set in the constructor. Default is no prefetching.
* @param string[] $termTypes Array with one or more of the types 'label', 'alias' and
* 'description'. Default is only 'label'.
*
* @return LabelDescriptionLookup
*/
public function newLabelDescriptionLookup(Language $language, array $entityIds = array(), array $termTypes = array('label'))
{
$languageFallbackChain = $this->languageFallbackChainFactory->newFromLanguage($language, $this->fallbackMode);
$languages = $languageFallbackChain->getFetchLanguageCodes();
$labelDescriptionLookup = new LanguageFallbackLabelDescriptionLookup($this->termLookup, $languageFallbackChain);
// Optionally prefetch the terms of the entities passed in here
// $termLookup and $termBuffer should be the same BufferingTermLookup then
if ($this->termBuffer !== null) {
$this->termBuffer->prefetchTerms($entityIds, $termTypes, $languages);
}
return $labelDescriptionLookup;
}
/**
* @param ChangesList $list
* @param ResultWrapper|array $rows
*
* @return bool
*/
public function doChangesListInitRows(ChangesList $list, $rows)
{
try {
$titles = $this->getChangedTitles($rows);
$entityIds = $this->idLookup->getEntityIds($titles);
$this->buffer->prefetchTerms($entityIds, $this->termTypes, $this->languageCodes);
} catch (StorageException $ex) {
wfLogWarning(__METHOD__ . ': ' . $ex->getMessage());
}
return true;
}
