static function get_informations_from_unimarc($fields, $from_collection = false)
 {
     $data = array();
     if ($from_collection) {
         for ($i = 0; $i < count($fields['411']); $i++) {
             $sub = array();
             $sub['authority_number'] = $fields['411'][$i]['0'][0];
             $sub['issn'] = $fields['411'][$i]['x'][0];
             $sub['name'] = $fields['411'][$i]['t'][0];
             $data[] = $sub;
         }
     } else {
         $data['name'] = $fields['200'][0]['a'][0];
         if (count($fields['200'][0]['i'])) {
             foreach ($fields['200'][0]['i'] as $value) {
                 $data['name'] .= ". " . $value;
             }
         }
         if (count($fields['200'][0]['e'])) {
             foreach ($fields['200'][0]['e'] as $value) {
                 $data['name'] .= " : " . $value;
             }
         }
         $data['issn'] = $fields['011'][0]['a'][0];
         $data['collection'] = collection::get_informations_from_unimarc($fields, true);
     }
     return $data;
 }
 public function get_specifics_informations()
 {
     $this->specifics_data = array();
     switch ($this->type) {
         case "collection":
             $this->specifics_data = collection::get_informations_from_unimarc($this->fields, false, $this->import_subcoll);
             break;
         case "subcollection":
             $this->specifics_data = subcollection::get_informations_from_unimarc($this->fields);
             break;
         case "serie":
             //$this->specifics_data = serie::get_informations_from_unimarc($this->fields);
             break;
         default:
             break;
     }
 }