Reply To: Datepicker save format

• John Huebner

• September 14, 2021 at 11:08 am

Yes

add_filter('get_post_metadata', 'format_rehub_offer_coupon_date', 10, 5);
function format_rehub_offer_coupon_date($value, $object_id, $meta_key, $single, $meta_type) {
  // $value will initially be NULL
  // this happens before data is retrieved
  // returning anything other than NULL will result in short circuit of WP function
  
  // this might break the acf input in admin
  // if it does un-comment the following if block
  /*
    if (is_admin()) {
      return $value;
    }
  */

  // see if it's the meta key we want to format
  if ($meta_key != 'rehub_offer_coupon_date') {
    // not our field
    return $value;
  }
  
  // remove this filter to prevent infinite loop
  remove_filter('get_post_metadata', 'format_rehub_offer_coupon_date', 10);
  
  // get the value of field
  $new_value = get_post_meta($object_id, 'rehub_offer_coupon_date', true);
  
  // return if empty
  if (empty($new_value)) {
    return $value;
  }
  
  // correctly format the value for theme
  $value = date('Y-m-d', strtotime($new_value));
  
  // re-add this filter
  add_filter('get_post_metadata', 'format_rehub_offer_coupon_date', 10, 5);
  
  // return new value
  return $value;
}