Ticket #84: enquire_sort_bug_demo.php

<?
        /* FROM phpinfo()
        * xapian
        *
        * Xapian Support => enabled
        * Xapian Compiled Version => 0.9.6
        */

        // set up a search db
        $index_path = "xapian_db";
        $index_pointer = new_WritableDatabase($index_path, DB_CREATE_OR_OPEN);

        $document_pointer = new_document();

        // add some documents with different values on the 0:th position
        $number_to_add = 5;
        for ($i = 1; $i <= $number_to_add; $i++)
        {
                $document_pointer = new_document();

                // add a random value in position 0
                document_add_value($document_pointer, 0, rand(1, 500));

                // add something to search on
                document_add_term($document_pointer, "bug", 1);

                $document_id = writabledatabase_add_document($index_pointer, $document_pointer);
        }

        WritableDatabase_flush($index_pointer);

        // now search for 'bug'
        $query = "bug";
        $query_parser = new_QueryParser();
        $query_pointer = QueryParser_parse_query($query_parser, $query);

        // create an enquire resource
        $enquire_pointer = new_Enquire($index_pointer);
        Enquire_set_query($enquire_pointer, $query_pointer);

        // order the results by the value in position zero in ascending order (none of these appear to work)
        Enquire_set_sort_by_value($enquire_pointer, 0, true);
//      Enquire_set_sort_by_value($enquire_pointer, 0, false);
//      Enquire_set_sort_by_value_then_relevance($enquire_pointer, 0, true);
//      Enquire_set_sort_by_value_then_relevance($enquire_pointer, 0, false);

        $result_pointer = Enquire_get_mset($enquire_pointer, 0, 10);
        $result = getResultArray($result_pointer);

        print_r($result);








        function getResultArray($result_pointer)
        {
                $result["total_hits"] = MSet_get_matches_estimated($result_pointer);

                $i = 0;
                $mset_counter = mset_begin($result_pointer);
                while (!msetiterator_equals($mset_counter, mset_end($result_pointer)))
                {
                        $document_pointer = msetiterator_get_document($mset_counter);

                        $result["result"][$i]["document_id"] = msetiterator_get_docid($mset_counter);

                        $value_counter = document_values_begin($document_pointer);
                        while (!valueiterator_equals($value_counter, document_values_end($document_pointer)))
                        {
                                $result["result"][$i]["values"][] = valueiterator_get_value($value_counter);

                                valueiterator_next($value_counter);
                        }

                        $i++;
                        msetiterator_next($mset_counter);
                }

                return $result;
        }
?>