public function searchableContent(array $config = array())
    {
        $result = '';
        $type = $this->searchType();

        /*
         * Plain Bootstrap with glyphicons
         */
        if ('resource-table::bootstrap' === $this->_viewName) {
            switch ($type) {

                // Select
                case 'select':
                    if (!count($this->options())) {
                        // Options must be provided for select
                        return '';
                    }
                    $result .= '<select name="resource_table_'.$this->index().'" class="'.array_get($config, 'control_class', 'form-control input-sm').' resource-table-column-filter">'.$this->_optionsHTML().'</select>';
                    break;

                // Simple string input
                case 'string':
                default:
                    $result .= '<input type="text" placeholder="'.array_get($config, 'placeholder', trans('resource-table::default.Search_for').' '.$this->label()).'" class="'.array_get($config, 'control_class', 'form-control input-sm').' resource-table-column-filter" name="resource_table_'.$this->index().'" value="'.ResourceTable::getSearchValue($this->index()).'" />';
                    break;
            }
        }

        /*
         * Just simple table
         */
        if (!$result) {
            switch ($type) {

                // Select
                case 'select':
                    if (!count($this->options())) {
                        // Options must be provided for select
                        return '';
                    }
                    $result .= '<select name="resource_table_'.$this->index().'" class="'.array_get($config, 'control_class').' resource-table-column-filter">'.$this->_optionsHTML().'</select>';
                    break;

                // Simple string input
                case 'string':
                default:
                    $result .= '<input type="text" class="'.array_get($config, 'control_class').' resource-table-column-filter" name="resource_table_'.$this->index().'" value="'.ResourceTable::getSearchValue($this->index()).'" placeholder="'.array_get($config, 'placeholder').'" />';
                    break;
            }
        }

        return $result;
    }