class.ilAbstractSearch.php

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<?php
declare(strict_types=1);
 
abstract class ilAbstractSearch
{
    protected ilDBInterface $db;
    protected ilQueryParser $query_parser;
    protected ilSearchResult $search_result;
 
    protected array $object_types = array('cat','dbk','crs','fold','frm','grp','lm','sahs','glo','mep','htlm','exc','file','qpl','tst','svy','spl',
                                          'chat','webr','mcst','sess','pg','st','wiki','book', 'copa', 'lso',
                                          'rcat', 'rcrs', 'rfil', 'rglo', 'rgrp', 'rlm', 'rtst', 'rwik');
 
    private array $id_filter = [];
 
    private array $fields = [];
 
 
 
    public function __construct(ilQueryParser $qp_obj)
    {
        global $DIC;
 
        $this->db = $DIC->database();
        $this->query_parser = $qp_obj;
        $this->search_result = new ilSearchResult();
    }
 
    public function setFields(array $a_fields): void
    {
        $this->fields = $a_fields;
    }
 
    public function getFields(): array
    {
        return $this->fields;
    }
 
    public function setFilter(array $a_filter): void
    {
        $this->object_types = $a_filter;
    }
 
    public function setIdFilter(array $a_id_filter): void
    {
        $this->id_filter = $a_id_filter;
    }
 
    public function getIdFilter(): array
    {
        return $this->id_filter;
    }
 
    public function appendToFilter(string $a_type): void
    {
        if (!in_array($a_type, $this->object_types)) {
            $this->object_types[] = $a_type;
        }
    }
 
 
    public function getFilter(): array
    {
        return $this->object_types;
    }
 
    public function __createLocateString(): string
    {
        if ($this->query_parser->getCombination() == ilQueryParser::QP_COMBINATION_OR) {
            return '';
        }
        if (count($this->fields) > 1) {
            $tmp_fields = [];
            foreach ($this->fields as $field) {
                $tmp_fields[] = array($field,'text');
            }
            $complete_str = $this->db->concat($tmp_fields);
        } else {
            $complete_str = $this->fields[0];
        }
 
        $counter = 0;
        $locate = '';
        foreach ($this->query_parser->getQuotedWords() as $word) {
            $word = str_replace('\%', '%', $word);
            $word = str_replace('\_', '_', $word);
 
            $locate .= ',';
            $locate .= $this->db->locate($this->db->quote($word, 'text'), $complete_str);
            $locate .= (' found' . $counter++);
            $locate .= ' ';
        }
 
        return $locate;
    }
 
    public function __prepareFound(object $row): array
    {
        if ($this->query_parser->getCombination() == 'or') {
            return array();
        }
        $counter = 0;
        $found = [];
        foreach ($this->query_parser->getQuotedWords() as $word) {
            $res_found = "found" . $counter++;
            $found[] = (int) $row->$res_found;
        }
        return $found;
    }
 
    abstract public function performSearch(): ?ilSearchResult;
}