Microweber\Utils\Database::add_table_index PHP Méthode

    public function add_table_index($aIndexName, $aTable, $aOnColumns, $indexmeta = false)
    {
        $aTable = $this->real_table_name($aTable);
        $function_cache_id = false;
        $args = func_get_args();
        foreach ($args as $k => $v) {
            $function_cache_id = $function_cache_id . serialize($k) . serialize($v);
            $function_cache_id = 'add_table_index' . crc32($function_cache_id);
        }
        if (isset($this->add_table_index_cache[$function_cache_id])) {
            return true;
        } else {
            $this->add_table_index_cache[$function_cache_id] = true;
        }
        $table_name = $function_cache_id;
        $cache_group = 'db/' . $table_name;
        $cache_content = $this->app->cache_manager->get($function_cache_id, $cache_group);
        if ($cache_content != false) {
            return $cache_content;
        }
        $columns = implode(',', $aOnColumns);
        $query = $this->query("SHOW INDEX FROM {$aTable} WHERE Key_name = '{$aIndexName}';");
        if ($indexmeta != false) {
            $index = $indexmeta;
        } else {
            $index = ' INDEX ';
            //FULLTEXT
        }
        if ($query == false) {
            $q = 'ALTER TABLE ' . $aTable . " ADD {$index} `" . $aIndexName . '` (' . $columns . ');';
            $this->q($q);
        }
        $this->app->cache_manager->save('--true--', $function_cache_id, $cache_group);
    }