Exposed sort combined custom. Write module and rewrite views-exposed-form.tpl.php

sort_combined.module

<?php
/**
 * Implements hook_form_alter().
 *
 * Alter exposed filter form in views
 */
function MODULE_form_views_exposed_form_alter(&$form, &$form_state, $form_id) {
  if (isset($form['sort_by'])) {
    // Combine sort drop-downs into one.
    $form['sorting'] = array(
      '#type' => 'select',
      '#id'   => 'sort',
      '#title' => $form['sort_by']['#title'],
    );
    foreach ($form['sort_by']['#options'] as $sort_by_key => $sort_by_title) {
      foreach ($form['sort_order']['#options'] as $sort_order_key => $sort_order_title) {
        $form['sorting']['#options'][$sort_by_key . '|' . $sort_order_key] = $sort_by_title . ' ' . $sort_order_title;
      }
    }

    // Get default value for combined sort.
    $sort_by_keys = array_keys($form['sort_by']['#options']);
    $form['sorting']['#default_value'] = $sort_by_keys[0] . '|' . $form['sort_order']['#default_value'];
  }

  // Explode combined sort field into two values that are appropriate for views.
  if (isset($form_state['input']['sorting'])) {
    $sorting = explode('|', $form_state['input']['sorting']);
    $form_state['input']['sort_by'] = $sorting[0];
    $form_state['input']['sort_order'] = $sorting[1];
  }
}

/**
 * Default preprocess function for all filter forms.
 */
function MODULE_preprocess_views_exposed_form(&$vars) {
  $form = &$vars['form'];

  // Render new created sort field.
  if (isset($form['sorting'])) {
    $form['sorting']['#printed'] = FALSE;
    $vars['sorting'] = drupal_render($form['sorting']);

    // Need to rebuild the submit button.
    $form['submit']['#printed'] = FALSE;
    $vars['button'] = drupal_render_children($form);
  }
}

views-exposed-form.tpl.php

<?php

/**
 * @file
 * This template handles the layout of the views exposed filter form.
 *
 * Variables available:
 * - $widgets: An array of exposed form widgets. Each widget contains:
 * - $widget->label: The visible label to print. May be optional.
 * - $widget->operator: The operator for the widget. May be optional.
 * - $widget->widget: The widget itself.
 * - $sort_by: The select box to sort the view using an exposed form.
 * - $sort_order: The select box with the ASC, DESC options to define order. May be optional.
 * - $items_per_page: The select box with the available items per page. May be optional.
 * - $offset: A textfield to define the offset of the view. May be optional.
 * - $reset_button: A button to reset the exposed filter applied. May be optional.
 * - $button: The submit button for the form.
 *
 * @ingroup views_templates
 */
?>
<?php if (!empty($q)): ?>
  <?php
    // This ensures that, if clean URLs are off, the 'q' is added first so that
    // it shows up first in the URL.
    print $q;
  ?>
<?php endif; ?>
<div class="views-exposed-form">
  <div class="views-exposed-widgets clearfix">
    <?php foreach ($widgets as $id => $widget): ?>
      <div id="<?php print $widget->id; ?>-wrapper" class="views-exposed-widget views-widget-<?php print $id; ?>">
        <?php if (!empty($widget->label)): ?>
      <div class="filter-block--wrapper">
        <label for="<?php print $widget->id; ?>">
        <span class="arrows filter-label">
          <?php print $widget->label; ?>
        </span>
        <?php if (!empty($widget->description)): ?>
          <span class="arrows filter-tip guarantee-block__item__text__link" data-toggle="tooltip" data-placement="top" title="<p class='filter-tip__descr'><?php print $widget->description; ?></p>"></span>
        <?php endif; ?>
        </label>

        <?php if (!empty($widget->operator)): ?>
          <div class="views-operator">
          <?php print $widget->operator; ?>
          </div>
        <?php endif; ?>
        <div class="views-widget">
          <?php print $widget->widget; ?>
        </div>
      </div>
    <?php endif; ?>
      </div>
    <?php endforeach; ?>
        <?php if (!empty($sorting)): ?>
      <div class="views-exposed-widget views-widget-sort-by views-widget-sort-sort_bef_combine">
        <?php print $sorting; ?>
      </div>
    <?php endif; ?>
    <?php if (!empty($items_per_page)): ?>
      <div class="views-exposed-widgets views-widget-per-page">
        <?php print $items_per_page; ?>
      </div>
    <?php endif; ?>
<!--     <?php if (!empty($sort_by)): ?>
      <div class="views-exposed-widget views-widget-sort-by">
        <?php print $sort_by; ?>
      </div>
      <div class="views-exposed-widgets views-widget-sort-order">
        <?php print $sort_order; ?>
      </div>
    <?php endif; ?> -->

    <?php if (!empty($offset)): ?>
      <div class="views-exposed-widget views-widget-offset">
        <?php print $offset; ?>
      </div>
    <?php endif; ?>
    <div class="views-exposed-widgets exp-but views-submit-button">
      <?php print $button; ?>
    </div>
    <?php if (!empty($reset_button)): ?>
      <div class="views-exposed-widgets exp-but views-reset-button">
        <?php print $reset_button; ?>
      </div>
    <?php endif; ?>
  </div>
</div>