/**
* Set the search index to search in.
* false is allowed (means we'll search *all* types)
*
* @param string|false $type
* @throws InvalidInputException
*/
public function setType($type)
{
$allowedTypes = array_merge(Connection::getAllTypes(), array(false));
if (!in_array($type, $allowedTypes)) {
throw new InvalidInputException('Invalid search sort requested', 'invalid-input');
}
$this->type = $type;
}
/**
* We want to retrieve the total amount of search word hits
* (static::termsAggregation) but our search terms may not be how
* ElasticSearch stores the words in its index.
* Elastic will "analyze" text (perform stemming, etc) and store
* the terms in a normalized way.
* AFAICT, there is not really a way to get to that information
* from within a search query.
*
* Luckily, since 1.0, Elastic supports _termvector, which gives
* you statistics about the terms in your document.
* Since 1.4, Elastic supports feeding _termvector documents to
* analyze.
* We're going to (ab)use this by letting it respond with term
* information on a bogus document that contains only our current
* search terms.
* So we'll give it a document with just our keywords for the
* column that we're searching in (revisions.text) and Elastic will
* use that column's configuration to analyze the text we feed it.
* It will then respond with the normalized terms & their stats.
*
* @param string $terms
* @return array
*/
protected function getTerms($terms)
{
$terms = preg_split('/\\s+/', $terms);
// _termvectors only works on a type, but our types are
// configured exactly the same so it doesn't matter which
$types = Connection::getAllTypes();
$searchable = Connection::getFlowIndex($this->indexBaseName);
$searchable = $searchable->getType(array_pop($types));
$query = array('doc' => array('revisions' => array('text' => $terms)), "fields" => array("revisions.text"));
// Elastica has no abstraction over _termvector like it has
// for _query, so just do the request ourselves
$response = $searchable->request('_termvector', Request::POST, $query, array());
$data = $response->getData();
return array_keys($data['term_vectors']['revisions.text']['terms']);
}
public function getParamDescription()
{
$p = $this->getModulePrefix();
return array('term' => 'Search term', 'title' => "Title of the boards to search in. Cannot be used together with {$p}pageid", 'pageid' => "ID of the boards to search in. Cannot be used together with {$p}title", 'namespaces' => 'Namespaces to search in', 'moderationState' => 'Search for revisions in (a) particular moderation state(s)', 'sort' => 'What to order the search results by', 'type' => 'Desired type of results (' . implode('|', Connection::getAllTypes()) . ')', 'offset' => 'Offset value to start fetching results at', 'limit' => 'Amount of results to fetch');
}
