Hi,
Don’t know if this is even possible but here’s an explanation.
The theme I’m using is a block theme (GeneratePress Pro).
I don’t use any pagebuilder of any kind other than what’s shipped with GeneratePress (GP).
I’m using a custom post type named ‘realestate’.
With ACF I have created:
- 1 Google map field (field name ‘location’)
- 1 text field (field name ‘street_name’)
By using the Google map field I can get the field values I need when working directly in my template files. However now I need to grab the values while in the block editor.
GP offers to insert “dynamic data” from a custom field (of type ‘string’, not an array). This is why I have also created a simple text field.
My idea is to somehow extract the value from Google map field – $location[‘street_name’] and update the text field value by using a method like update_value or similar. The problem is, I don’t know how to use the method or even if it’s the right one to use.
How can I make sure that the text field gets updated with the value from $location[‘street_name’] whenever I save the current post?
Thank you!
I have tried with the following instead:
// Testing to save/update field value using another field value
function my_acf_save_post( $post_id ) {
// Get newly saved values.
$values = get_fields( $post_id );
$location = get_field('location', $post_id);
$street_name = get_field('street_name', $post_id);
if ( ! get_post_type == 'realestate') {
// Stop right away
return;
} else {
// Check the new value of a specific field.
if ($location['street_name']) {
$street_name = $location['street_name'];
}
}
}
add_action('acf/save_post', 'my_acf_save_post');
Of course this is not doing anything because I don’t understand the documentation properly. Please help.
An ACF GM field stores an array with 3 indexes: “lat”, “lng”, “address”.
to set a value of a field based on another field first you get the value and then you use update_field() to update the other.
I don’t get the documentation for acf/update_field() either. It says the $field parameter is the field array containing all settings. All the settings of what? The field I want to collect data from? In that case it seems this should work but it doesn’t.
function save_updated_acf_fields($location)
{
// Collect GM field data
$location = get_field('field_634147f894e08', $post_id);
$gmap_street_name = $location['street_name'];
$gmap_street_nbr = $location['street_number'];
// Fields retrieving updated values
$empty_street_name = get_field('field_6341483d94e09', $post_id);
$empty_street_nbr = get_field('field_634151528a090', $post_id);
if ($location) {
$empty_street_name = $gmap_street_name;
$empty_street_nbr = $gmap_street_nbr;
}
}
add_filter('acf/update_field ', 'save_updated_acf_fields', 10, 1);
Would you please translate the documentation into something a plain dummy like myself can understand?
You had the correct filter the first time “acf/save_post” because you will be working with multiple values. The other field may or may not have been saved when the acf/update_field hook happens for this field.
You cannot update a field value simply by setting a variable equal to something, you must call update_field() to have ACF save that value to the DB.
Simple example:
add_action('acf/save_post', 'my_acf_save_post', 30);
function my_acf_save_post($post_id) {
// get value from a field
$value = get_field('field_name', $post_id);
// update another field to this value
update_field('other_field', $value, $post_id);
}
Thank you John! It really wasn’t that clear to me that I had to use update_field() inside acf/save_post. It isn’t all too obvious in the documentation, at least not to me.
