public static function fetchSymptomsLetters($related_infos = false)
{
if ( is_null(self::$_symptomsLetters) )
{
$field = 'attr_custom_symptom_'.ClusterTool::clusterIdentifier().'_s';
$params = array(
'indent' => 'on',
'q' => '',
'start' => 0,
'rows' => 0,
'fl' => 'score',
'qt' => 'ezpublish',
'explainOther' => '',
'hl.fl' => '',
'facet' => 'true',
'facet.field' => $field,
'facet.mincount' => 1
);
$solrResult = self::rawSearch($params);
$translations = FacetFilteringTool::getTaxonomyTranslation( 'symptom' );
$letters = array();
foreach( $solrResult['facet_counts']['facet_fields'][$field] as $key => $v) {
list( $letter, $symptomLabel, $url ) = explode('##', $key);
if( !isset($letters[$letter]) )
$letters[$letter] = array();
$letters[$letter][$symptomLabel] = $url;
}
ksort($letters);
foreach ( $letters as $letter => $symptoms)
{
uksort($symptoms, function($a, $b) {
return strcmp(StringTool::CJK2Pinyin($a), StringTool::CJK2Pinyin($b));
});
$letters[$letter] = $symptoms;
}
self::$_symptomsLetters = $letters;
}
return array( 'result' => self::$_symptomsLetters );
}
