| commit | author | age | ||
| 175a52 | 1 | <?php |
| JK | 2 | if(!extension_loaded('yaz')) { |
| 3 | error::add('Brak rozszerzenia YAZ. Wyszukiwanie w bazach Biblioteki Narodowej niemożliwe.'); | |
| 4 | } | |
| 5 | ||
| 6 | class YAZ { | |
| 7 | private static $connection; | |
| 8 | static $timeout = 10; | |
| 9 | ||
| 10 | static function connect($host) { | |
| 11 | self::$connection = yaz_connect($host, array('charset' => 'UTF-8')); | |
| 12 | yaz_syntax(self::$connection, 'marc21'); | |
| 13 | } | |
| 14 | ||
| 15 | static function search($query, $start=1, $num=10) { | |
| 16 | yaz_search(self::$connection, 'rpn', $query); | |
| 17 | yaz_range(self::$connection, $start, $num); | |
| 18 | yaz_wait(); | |
| 19 | self::is_error(); | |
| 20 | } | |
| 21 | ||
| 22 | static function scan($query) { | |
| 23 | yaz_scan(self::$connection, 'rpn', $query); | |
| 24 | yaz_wait(); | |
| 25 | self::is_error(); | |
| 26 | } | |
| 27 | ||
| 28 | static function scan_result() { | |
| 29 | return yaz_scan_result(self::$connection); | |
| 30 | } | |
| 31 | ||
| 32 | static function scan_get($start=1, $num=10) { | |
| 33 | yaz_range(self::$connection, $start, $num); | |
| 34 | yaz_present(self::$connection); | |
| 35 | yaz_wait(); | |
| 36 | self::is_error(); | |
| 37 | } | |
| 38 | ||
| 39 | static function hits() { | |
| 40 | return yaz_hits(self::$connection); | |
| 41 | } | |
| 42 | ||
| 43 | static function return_MARCs() { | |
| 44 | $hits = self::hits(); | |
| 45 | ||
| 46 | $records = array(); | |
| 47 | ||
| 48 | $time = time(); | |
| 49 | ||
| 50 | for($i=1; $i<=$hits; $i++) { | |
| 51 | if($time+self::$timeout <= time()) { | |
| 52 | break; | |
| 53 | } | |
| 54 | $record = yaz_record(self::$connection, $i, 'raw'); | |
| 55 | $records[] = MARC21::from_string($record); | |
| 56 | } | |
| 57 | ||
| 58 | return $records; | |
| 59 | } | |
| 60 | ||
| 61 | static function return_arrays() { | |
| 62 | $return = array(); | |
| 63 | ||
| 64 | $MARCs = self::return_MARCs(); | |
| 65 | ||
| 66 | foreach($MARCs as $MARC) { | |
| 67 | $return[] = MARC21::to_array( $MARC ); | |
| 68 | } | |
| 69 | ||
| 70 | return $return; | |
| 71 | } | |
| 72 | ||
| 73 | static function is_error() { | |
| 74 | if($e = yaz_error(self::$connection)) { | |
| 75 | error::add('Błąd YAZ: '.$e); | |
| 76 | } | |
| 77 | else | |
| 78 | { | |
| 79 | return FALSE; | |
| 80 | } | |
| 81 | } | |
| 82 | } | |
| 83 | ?> | |
