diff options
Diffstat (limited to 'lib/classes/librarysearch/searchmodules/SRULibrarySearch.class.php')
| -rw-r--r-- | lib/classes/librarysearch/searchmodules/SRULibrarySearch.class.php | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/lib/classes/librarysearch/searchmodules/SRULibrarySearch.class.php b/lib/classes/librarysearch/searchmodules/SRULibrarySearch.class.php deleted file mode 100644 index b94869a..0000000 --- a/lib/classes/librarysearch/searchmodules/SRULibrarySearch.class.php +++ /dev/null @@ -1,153 +0,0 @@ -<?php -/** - * This file is part of Stud.IP. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * @author Moritz Strohm <strohm@data-quest.de> - * @copyright 2020 - * @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2 - * @category Stud.IP - * @since 4.6 - */ - - -/** - * This is a LibrarySearch implementation for catalogs that use SRU. - * - * @see LibrarySearch - */ -class SRULibrarySearch extends LibrarySearch -{ - /** - * This array is used to map the general search field names to - * the real field names. - */ - protected static $field_replacements = [ - 'pica' => [ - LibrarySearch::TITLE => 'pica.tit', - LibrarySearch::AUTHOR => 'pica.per', - LibrarySearch::YEAR => 'pica.jhr', - LibrarySearch::NUMBER => 'pica.num', - LibrarySearch::ISBN => 'pica.isb', - LibrarySearch::ISSN => 'pica.iss', - LibrarySearch::PUBLICATION => 'pica.gti', - LibrarySearch::SIGNATURE => 'pica.sga' - ], - 'cql' => [ - LibrarySearch::TITLE => 'dc.title', - LibrarySearch::AUTHOR => 'dc.creator', - LibrarySearch::YEAR => 'dc.date', - LibrarySearch::NUMBER => 'dc.identifier', - LibrarySearch::ISBN => 'dc.identifier', - LibrarySearch::ISSN => 'dc.identifier' - ] - ]; - - - /** - * @see LibrarySearch::translateQueryFields - */ - protected function translateQueryFields(array $query_fields = []) : array - { - if (!$query_fields) { - return []; - } - - $query_format = 'pica'; - if ($this->settings['query_format'] == 'cql') { - $query_format = 'cql'; - } - - $translated_fields = []; - foreach ($query_fields as $key => $value) { - if (in_array($key, array_keys(self::$field_replacements[$query_format]))) { - $new_key = self::$field_replacements[$query_format][$key]; - $translated_fields[$new_key] = $value; - } else { - $translated_fields[$key] = $value; - } - } - return $translated_fields; - } - - - /** - * @see LibrarySearch::query - */ - public function query( - array $search_parameters = [], - string $order_by = self::ORDER_BY_RELEVANCE, - int $limit = 200 - ) : array - { - if (!$search_parameters) { - return []; - } - - //The standardised parameter names must be converted to module-specific - //search parameter names before being added to the query string. - $search_parameters = $this->translateQueryFields($search_parameters); - $query_string = ''; - $query_format = 'pica'; - if ($this->settings['query_format'] == 'cql') { - $query_format = 'cql'; - } - foreach ($search_parameters as $key => $value) { - if (!empty($query_string)) { - $query_string .= ' and '; - } - if ($key == self::$field_replacements[$query_format][LibrarySearch::NUMBER]) { - $query_string .= sprintf( - '(%1$s="%2$s" or %3$s="%2$s" or %4$s="%2$s")', - self::$field_replacements[$query_format][LibrarySearch::ISBN], - addslashes($value), - self::$field_replacements[$query_format][LibrarySearch::ISSN], - self::$field_replacements[$query_format][LibrarySearch::NUMBER] - ); - } else { - //TODO: escape colon in data! - $query_string .= sprintf('%1$s="%2$s"', $key, addslashes($value)); - } - } - - $query_parameters = []; - $query_parameters['version'] = '1.1'; //TODO: is version 2.0 supported? - $query_parameters['operation'] = 'searchRetrieve'; - $query_parameters['recordSchema'] = 'marcxml'; - if ($this->settings['sru_version'] == '1.2') { - $query_parameters['version'] = '1.2'; - //Use SRU/SRW 1.2 - if ($order_by == self::ORDER_BY_RELEVANCE) { - if ($query_format != 'cql') { - $query_string .= ' sortby relevance/descending'; - } - } elseif ($order_by == self::ORDER_BY_YEAR) { - if ($query_format == 'cql') { - $query_string .= ' sortBy dc.date/sort.descending'; - } else { - $query_string .= ' sortby year/descending'; - } - } - } else { - //Use SRU/SRW 1.1 - if ($order_by == self::ORDER_BY_RELEVANCE) { - $query_parameters['sortKeys'] = 'relevance,,0'; - } elseif ($order_by == self::ORDER_BY_YEAR) { - $query_parameters['sortKeys'] = 'year,,0'; - } - } - $query_parameters['maximumRecords'] = $limit; - $query_parameters['query'] = $query_string; - $data = $this->requestData($this->request_base_url, $query_parameters); - if (!$data) { - //There are no data we can retrieve. - return []; - } - $parser = new SRULibraryResultParser(); - return $parser->readResultSet($data); - } -} |