18.1 Làm form filter Category (ok)

C:\xampp\htdocs\test\wp-content\plugins\plugin-name\includes\class-wpf-form_ct.php

protected function get_main_fields($type, $name, $module = array()) {
    switch ($type):
      case 'sku':
        break;
      default:
         $order = array(
          'term_order' => __('Custom Ordering', 'wpf'),
          'name' => __('Name', 'wpf'),
          'count' => __('Count', 'wpf'),
          'id' => __('ID', 'wpf'),
        );
        $orderby = array(
          'asc' => __('Ascending', 'wpf'),
          'desc' => __('Descending', 'wpf')
        );
        $display = array(
          'checkbox' => __('Checkbox', 'wpf'),
          'link' => __('Links', 'wpf'),
          'radio' => __('Radio', 'wpf'),
          'dropdown' => __('Dropdown', 'wpf'),
          'multiselect' => __('Multi Select', 'wpf'),
        );
        $logic = array(
          'or' => __('OR', 'wpf'),
          'and' => __('AND', 'wpf')
        );
        $include_children = array(
          'yes' => __('Yes', 'wpf'),
          'no' => __('No', 'wpf')
        );
      ?>
      <div class="wpf_ct_back_active_module_row">
        <div class="wpf_ct_back_active_module_label">
          <label for="wpf_ct_<?php echo $type ?>[count]"><?php _e('Product Count', 'wpf') ?></label>
        </div>
        <div class="wpf_ct_back_active_module_input">
          <label>
            <input id="wpf_ct_<?php echo $type ?>[count]" type="checkbox" name="[<?php echo $type ?>][count]" value="1" <?php if (!empty($module['count']) || !$module): ?>checked="checked"<?php endif; ?>  />
            <?php _e('Show product counts', 'wpf') ?>
          </label>
        </div>
      </div>
      <?php if ($type === 'wpf_ct_cat' || $type === 'wpf_ct_tag'): ?>
        <?php if ($type === 'wpf_ct_cat'): ?>
          <div class="wpf_ct_back_active_module_row">
            <div class="wpf_ct_back_active_module_label">
              <label for="wpf_ct_<?php echo $type ?>[hierachy]"><?php _e('Category Hierarchy', 'wpf') ?></label>
            </div>
            <div class="wpf_ct_back_active_module_input">
              <label>
                <input id="wpf_ct_<?php echo $type ?>[hierachy]" type="checkbox" name="[<?php echo $type ?>][hierachy]" value="1" <?php if (!empty($module['hierachy'])): ?>checked="checked"<?php endif; ?>  />
                <?php _e('Show category hierarchy', 'wpf') ?>
              </label>
            </div>
          </div>
          <div class="wpf_ct_back_active_module_row">
              <div class="wpf_ct_back_active_module_label">
                  <label for="wpf_ct_<?php echo $type ?>[include]"><?php _e('Include Children ', 'wpf') ?></label>
              </div>
              <div class="wpf_ct_back_active_module_input">
                  <?php foreach ($include_children as $k => $v): ?>
                      <label>
                          <input type="radio" name="[<?php echo $type ?>][include]" value="<?php echo $k ?>" <?php if ((isset($module['include']) && $module['include'] === $k) || (!isset($module['include']) && $k === 'yes')): ?>checked="checked"<?php endif; ?>  />
                          <?php echo $v ?>
                      </label>
                  <?php endforeach; ?>
              </div>
          </div>
        <?php endif; ?>
      <?php endif; ?>
      <?php break; ?>
    <?php endswitch; ?>
    <?php
  }