public function testSuggestNoResults()
{
$termSuggest = new Term('suggest1', '_all');
$termSuggest->setText('Foobar')->setSize(4);
$result = $this->_index->search($termSuggest);
$this->assertEquals(1, $result->countSuggests());
// Assert that no suggestions were returned
$suggests = $result->getSuggests();
$this->assertEquals(0, sizeof($suggests['suggest1'][0]['options']));
}
/**
* Search suggest.
*
* @param string $type Post type
* @param int $post Post ID to get all suggestions
* @param array $tags Array contains all post tags
* @return array $search Combine of all results, total and aggregations
*
* @since 3.0.0
*/
public function searchSuggest($type, $post, $tags)
{
//Check page
if (!is_search()) {
return;
}
//Return array
$return = array('post' => $post, 'tags' => $tags, 'total' => 0, 'results' => array());
//Check request
if (empty($post)) {
return $return;
}
//Get query vars
$results = array();
//Get Elasticsearch datas
$index = $this->getIndex();
//Check index
if (null === $index || empty($index)) {
return $return;
}
//Create suggestion
$es_suggest = new Suggest();
//Iterate on all tags
foreach ($tags as $k => $tag) {
//CReate Term with options
$es_term = new SuggestTerm('tags_suggest_' . $k, '_all');
$es_term->setText($tag);
$es_term->setSize(5);
$es_term->setAnalyzer('simple');
//Add Term to current suggestion
$es_suggest->addSuggestion($es_term);
}
//Search!
$es_resultset = $index->search($es_suggest);
//Retrieve data
$es_results = $es_resultset->getSuggests();
//Check results
if (null == $es_results || empty($es_results)) {
return $return;
}
//Iterate to retrieve all IDs
foreach ($es_results as $res) {
//Check suggestions
if (empty($res[0]['options'])) {
continue;
}
//Iterate on all options
foreach ($res[0]['options'] as $opt) {
//Save datas
$results[$opt['text']] = array('score' => $opt['score'], 'freq' => $opt['freq']);
}
}
//Get total
$total = $es_resultset->getTotalHits();
//Return everything
$return = array('post' => $post, 'tags' => $tags, 'total' => $total, 'results' => $results);
return $return;
}