Hi all
I have a google maps field with the name “location”, everytime somebody changes that field, I want that the a specific part of the google maps data (state_short) is saved to another ACF field with the name state_short.
I tried doing it this way, but doesnt work.
function update_state_short( $value, $post_id, $field ) {
update_post_meta( $post_id, 'state_short', $value['state_short'] );
return $value;
}
add_action('acf/update_value/key=field_5e5a38be195bc', 'update_state_short', 10, 3 );
How is that possible?
This worked for me. Be sure to set your Google Maps API key beforehand if you have not done so already.
replace “pickup_” with your custom field keys.
/**
* Save Google Map field data to custom fields in ACF
*
* This snippet hooks into the ACF save process to extract the data
* from a Google Map field and save it to custom fields for address,
* city, state, zip code, latitude, and longitude.
*
* @param int $post_id The ID of the post being saved.
*/
function save_google_map_data_to_custom_fields($post_id) {
// Check if this is an autosave or if the user has permission to save
if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
return;
}
// Check user permissions
if (!current_user_can('edit_post', $post_id)) {
return;
}
// Get the Google Map field value
$google_map_data = get_field('your_google_map_field_name', $post_id);
// Check if the Google Map field has data
if ($google_map_data && is_array($google_map_data)) {
// Extract data from the Google Map field
$street_number = isset($google_map_data['street_number']) ? $google_map_data['street_number'] : '';
$street_name = isset($google_map_data['street_name']) ? $google_map_data['street_name'] : '';
$city = isset($google_map_data['city']) ? $google_map_data['city'] : '';
$state = isset($google_map_data['state']) ? $google_map_data['state'] : '';
$post_code = isset($google_map_data['post_code']) ? $google_map_data['post_code'] : '';
$country = isset($google_map_data['country']) ? $google_map_data['country'] : '';
$latitude = isset($google_map_data['lat']) ? $google_map_data['lat'] : '';
$longitude = isset($google_map_data['lng']) ? $google_map_data['lng'] : '';
// Save to custom fields
update_field('pickup_address', trim("$street_number $street_name"), $post_id);
update_field('pickup_city', $city, $post_id);
update_field('pickup_state', $state, $post_id);
update_field('pickup_zipcode', $post_code, $post_id);
update_field('pickup_country', $country, $post_id); // If you want to save the country as well
update_field('pickup_latitude', $latitude, $post_id);
update_field('pickup_longitude', $longitude, $post_id);
}
}
// Hook into ACF save process
add_action('acf/save_post', 'save_google_map_data_to_custom_fields');
Your approach is almost correct, but there are a few issues to address:
The acf/update_value action does not directly pass the Google Maps field data as an associative array. You need to ensure that $value contains the data you’re expecting.
Here’s the corrected code:
function update_state_short( $value, $post_id, $field ) {
// Check if the value contains the 'state_short' key
if ( isset( $value['state_short'] ) ) {
// Update the 'state_short' ACF field with the new value
update_post_meta( $post_id, 'state_short', $value['state_short'] );
}
// Return the original value to ensure the ACF field is saved correctly
return $value;
}
// Hook into the ACF update_value action for the specific field key
add_filter( 'acf/update_value/key=field_5e5a38be195bc', 'update_state_short', 10, 3 );
This article explains how to use the acf/update_value hook in detail. It has examples and recommendations: https://www.advancedcustomfields.com/resources/acf-update_value/
