function view::destroy

Unset references so that a $view object may be properly garbage collected.

File

includes/view.inc, line 2069

Class

view

An object to contain all of the data to generate a view.

Code

public function destroy() {
    foreach (array_keys($this->display) as $display_id) {
        if (isset($this->display[$display_id]->handler) && is_object($this->display[$display_id]->handler)) {
            $this->display[$display_id]->handler
                ->destroy();
            unset($this->display[$display_id]->handler);
        }
    }
    foreach (views_object_types() as $type => $info) {
        if (isset($this->{$type})) {
            $handlers =& $this->{$type};
            foreach ($handlers as $id => $item) {
                $handlers[$id]->destroy();
            }
            unset($handlers);
        }
    }
    if (isset($this->style_plugin)) {
        $this->style_plugin
            ->destroy();
        unset($this->style_plugin);
    }
    // Clear these to make sure the view can be processed/used again.
    if (isset($this->display_handler)) {
        unset($this->display_handler);
    }
    if (isset($this->current_display)) {
        unset($this->current_display);
    }
    if (isset($this->query)) {
        unset($this->query);
    }
    $keys = array(
        'current_display',
        'display_handler',
        'build_info',
        'built',
        'executed',
        'attachment_before',
        'attachment_after',
        'field',
        'argument',
        'filter',
        'sort',
        'relationship',
        'header',
        'footer',
        'empty',
        'query',
        'result',
        'inited',
        'style_plugin',
        'plugin_name',
        'exposed_data',
        'exposed_input',
        'many_to_one_tables',
    );
    foreach ($keys as $key) {
        if (isset($this->{$key})) {
            unset($this->{$key});
        }
    }
    // These keys are checked by the next init, so instead of unsetting them,
    // just set the default values.
    $keys = array(
        'items_per_page',
        'offset',
        'current_page',
    );
    foreach ($keys as $key) {
        if (isset($this->{$key})) {
            $this->{$key} = NULL;
        }
    }
    $this->built = $this->executed = FALSE;
    $this->build_info = array();
    $this->attachment_before = '';
    $this->attachment_after = '';
}