How do I change submit URL for exposed search filter?

Question

I've created view using Search API Views with two different displays.

First Page display (by_terms) and with the following options:

Page settings: Path:/taxonomy/term/%

Contextual filters: Category: Term ID (indexed)

Filter criteria: Search: Fulltext search (exposed)

And second Content pane display (panel_pane):

Use Panel path: Yes

Filter criteria: Search: Fulltext search (exposed)

Link display: Custom URL set to search/results

---

When I open page with 1st display /category/list/name (which is alias to /taxonomy/term/123) and submit Search input, it goes to /category/list/name?keywords=test.

When I open page with 2nd display (/search/results) and submit Search input, it goes to /taxonomy/term/%2A?keywords=test which is weird.

Ideally I would like the submit to end up in both cases at /search/results?keywords=test.

---

Is there any way of controlling the submit URL of the landing page for exposed filter? How?

Answer 1

Seems that specific problem is with Panels.

The exposed form is basically a block which have no sense of context, therefore setting the URL from the view pane doesn't affect exposed filters in a block.

Therefore one way to go is to use hook_form_alter:

/**
 * Implements hook_form_alter().
 */
function foo_form_alter(&$form, $form_state, $form_id) {
  if ($form_id == 'views_exposed_form') {
    $form['#action'] = current_path();
  }
}

Or:

/**
 * Implements hook_form_views_exposed_form_alter().
 */
function foo_form_views_exposed_form_alter(&$form, &$form_state) {
  if ($form['#id'] == 'views-exposed-form-foo-default') { // Or: if ($form['#action'] === '/foo')
    $form['#action'] = '/bar';
  }
}

Or by extending Views handler, for example:

class foo_handler extends views_handler_field {

  /**
   * Add to and alter the form.
   */
  function views_form(&$form, &$form_state) {

    // Submit to the current page if not a page display.
    if ($this->view->display_handler->plugin_name != 'page') {
      $form['#action'] = current_path();
    }
  }

}

Alternatively content pane can be used which can override the path, instead of using exposed form. See this issue for more details.