function views_plugin_display::export_handler

Special method to export items that have handlers.

This method was specified in the option_definition() as the method to utilize to export fields, filters, sort criteria, relationships and arguments. This passes the export off to the individual handlers so that they can export themselves properly.

File

plugins/views_plugin_display.inc, line 3065

Class

views_plugin_display

The default display plugin handler. Display plugins handle options and basic mechanisms for different output methods.

Code

public function export_handler($indent, $prefix, $storage, $option, $definition, $parents) {
    $output = '';
    // Cut the 's' off because the data is stored as the plural form but we need
    // the singular form.
    if ($option != 'header' && $option != 'footer' && $option != 'empty') {
        $type = substr($option, 0, -1);
    }
    else {
        $type = $option;
    }
    $types = views_object_types();
    foreach ($storage[$option] as $id => $info) {
        if (!empty($types[$type]['type'])) {
            $handler_type = $types[$type]['type'];
        }
        else {
            $handler_type = $type;
        }
        // If aggregation is on, the group type might override the actual handler
        // that is in use. This piece of code checks that and, if necessary, sets
        // the override handler.
        $override = NULL;
        if ($this->use_group_by() && !empty($info['group_type'])) {
            if (empty($this->view->query)) {
                $this->view
                    ->init_query();
            }
            $aggregate = $this->view->query
                ->get_aggregation_info();
            if (!empty($aggregate[$info['group_type']]['handler'][$type])) {
                $override = $aggregate[$info['group_type']]['handler'][$type];
            }
        }
        $handler = views_get_handler($info['table'], $info['field'], $handler_type, $override);
        if ($handler) {
            $handler->init($this->view, $info);
            $output .= $indent . '/* ' . $types[$type]['stitle'] . ': ' . $handler->ui_name() . " */\n";
            $output .= $handler->export_options($indent, $prefix . "['{$option}']['{$id}']");
        }
        // Prevent reference problems.
        unset($handler);
    }
    return $output;
}