function Result::render

Overrides AreaPluginBase::render

File

core/modules/views/src/Plugin/views/area/Result.php, line 71

Class

Result

Views area handler to display some configurable result summary.

Namespace

Code

public function render($empty = FALSE) {
    // Must have options and does not work on summaries.
    if (!isset($this->options['content']) || $this->view->style_plugin instanceof DefaultSummary) {
        return [];
    }
    $output = '';
    $format = $this->options['content'];
    // Calculate the page totals.
    $current_page = (int) $this->view
        ->getCurrentPage() + 1;
    $per_page = (int) $this->view
        ->getItemsPerPage();
    // @todo Maybe use a possible is views empty functionality.
    // Not every view has total_rows set, use view->result instead.
    $total = $this->view->total_rows ?? count($this->view->result);
    $label = Html::escape($this->view->storage
        ->label());
    // If there is no result the "start" and "current_record_count" should be
    // equal to 0. To have the same calculation logic, we use a "start offset"
    // to handle all the cases.
    $start_offset = empty($total) ? 0 : 1;
    if ($per_page === 0) {
        $page_count = 1;
        $start = $start_offset;
        $end = $total;
    }
    else {
        $page_count = (int) ceil($total / $per_page);
        $total_count = $current_page * $per_page;
        if ($total_count > $total) {
            $total_count = $total;
        }
        $start = ($current_page - 1) * $per_page + $start_offset;
        $end = $total_count;
    }
    $current_record_count = $end - $start + $start_offset;
    // Get the search information.
    $replacements = [];
    $replacements['@start'] = $start;
    $replacements['@end'] = $end;
    $replacements['@total'] = $total;
    $replacements['@label'] = $label;
    $replacements['@per_page'] = $per_page;
    $replacements['@current_page'] = $current_page;
    $replacements['@current_record_count'] = $current_record_count;
    $replacements['@page_count'] = $page_count;
    // Send the output.
    if (!empty($total) || !empty($this->options['empty'])) {
        $output .= str_replace(array_keys($replacements), array_values($replacements), $format);
        // Return as render array.
        return [
            '#markup' => $output,
        ];
    }
    return [];
}