function entityreference_view_widget_plugin_exposed_form::render_exposed_form in Entity Reference View Widget 7

Overrides the parent render_exposed_form() method to just build the exposed form, but not render it. The output of this function will end up in $view->exposed_widgets, allowing it to be added to the widget. Unfortunately, the theme function will try to print $view->exposed_widgets, but the preprocess hook in the module will unset that in time.

Overrides views_plugin_exposed_form::render_exposed_form

File

views/entityreference_view_widget_plugin_exposed_form.inc, line 17

Class

entityreference_view_widget_plugin_exposed_form

Extends the views plugin to make the exposed form work when included in an entityreference widget (itself included in an entity form). This is accomplished by using #ajax.

Code

function render_exposed_form($block = FALSE) {
  $form_state = array(
    'view' => &$this->view,
    'display' => &$this->display,
    'method' => 'get',
    'rerender' => TRUE,
    'no_redirect' => TRUE,
    'always_process' => TRUE,
    'exposed_form_plugin' => $this,
  );

  // We must build and validate the form. One reason is that some filter
  // handlers (like views_handler_filter_term_node_tid) store internal values
  // at exposed_validate() - so, query results will be incorrect unless
  // views_exposed_form_validate() is run.
  $form = drupal_build_form('views_exposed_form', $form_state);

  // Seed the defaults so that the view renders on first page load.
  if (empty($this->view->exposed_data)) {
    $this->view->exposed_data = $form_state['values'];
  }

  // Now get the actual form structure that the module needs.
  $form = views_exposed_form($form, $form_state);

  // Return only the needed parts of the form.
  $return_form = array(
    '#theme' => $form['#theme'],
    '#info' => $form['#info'],
    // Return a reference to the plugin, for validation / submission.
    '#exposed_form_plugin' => $this,
  );
  foreach (element_get_visible_children($form) as $key) {
    $return_form[$key] = $form[$key];

    // Adjust the element's values to the exposed input used for filtering
    // the view. Set #default_value since we do not return $form_state.
    if (isset($form_state['input'][$key]) && isset($return_form[$key]['#default_value'])) {
      $return_form[$key]['#default_value'] = $form_state['input'][$key];
    }
  }
  return $return_form;
}