function view::destroy

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

File

modules/views/includes/view.inc, line 1904

Provides the view object type and associated methods.

Class

view

An object to contain all of the data to generate a view, plus the member functions to build the view query, execute the query and render the output.

Code

function destroy() {
  foreach (array_keys($this->display) as $display_id) {
    if (isset($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 = '';
}