public function edit_level($id)
 {
     //Check we are on the admin end and user has management permission
     SwpmMiscUtils::check_user_permission_and_is_admin('membership level edit');
     //Check nonce
     if (!isset($_POST['_wpnonce_edit_swpmlevel_admin_end']) || !wp_verify_nonce($_POST['_wpnonce_edit_swpmlevel_admin_end'], 'edit_swpmlevel_admin_end')) {
         //Nonce check failed.
         wp_die(SwpmUtils::_("Error! Nonce verification failed for membership level edit from admin end."));
     }
     global $wpdb;
     $query = $wpdb->prepare("SELECT * FROM " . $wpdb->prefix . "swpm_membership_tbl WHERE id = %d", $id);
     $level = $wpdb->get_row($query, ARRAY_A);
     $form = new SwpmLevelForm($level);
     if ($form->is_valid()) {
         $wpdb->update($wpdb->prefix . "swpm_membership_tbl", $form->get_sanitized(), array('id' => $id));
         //@todo meta table and collect all relevant info and pass as argument
         $custom = apply_filters('swpm_admin_edit_membership_level', array(), $id);
         $this->save_custom_fields($id, $custom);
         $message = array('succeeded' => true, 'message' => '<p>' . SwpmUtils::_('Membership Level Updated Successfully.') . '</p>');
         SwpmTransfer::get_instance()->set('status', $message);
         wp_redirect('admin.php?page=simple_wp_membership_levels');
         exit(0);
     }
     $message = array('succeeded' => false, 'message' => SwpmUtils::_('Please correct the following:'), 'extra' => $form->get_errors());
     SwpmTransfer::get_instance()->set('status', $message);
 }
 public function edit($id)
 {
     global $wpdb;
     $query = $wpdb->prepare("SELECT * FROM " . $wpdb->prefix . "swpm_membership_tbl WHERE id = %d", $id);
     $level = $wpdb->get_row($query, ARRAY_A);
     $form = new SwpmLevelForm($level);
     if ($form->is_valid()) {
         $wpdb->update($wpdb->prefix . "swpm_membership_tbl", $form->get_sanitized(), array('id' => $id));
         //@todo meta table and collect all relevant info and pass as argument
         $custom = apply_filters('swpm_admin_edit_membership_level', array(), $id);
         $this->save_custom_fields($id, $custom);
         $message = array('succeeded' => true, 'message' => '<p>' . SwpmUtils::_('Updated Successfully.') . '</p>');
         SwpmTransfer::get_instance()->set('status', $message);
         wp_redirect('admin.php?page=simple_wp_membership_levels');
         exit(0);
     }
     $message = array('succeeded' => false, 'message' => SwpmUtils::_('Please correct the following:'), 'extra' => $form->get_errors());
     SwpmTransfer::get_instance()->set('status', $message);
 }