[CFT] Flexible Content values in update_value()

• nightillusions

• October 26, 2017 at 12:05 am

Hi there,

I´ve create a custom field type and everything is working fine. Now I have to work with the value(s) of the field(s) when it gets saved/updated. My logic is working well for a single field, but not within a flexible content. I am using this function to receive the value of the field: function update_value( $value, $post_id, $field ).

If I dump the data in context of FC, I only get the very first field and not the other ones. Dumping $_POST shows me that the values of all fields are in acf:{...}. Is there a native way to get a all values in both cases (single field / multiple fields), without creating my own logic if the field is in context of FC?

I hope for a quick reply, thank you!

Best regards

Pascal

• nightillusions

• November 3, 2017 at 10:27 pm

For my custom field type I needed to get all values at once and the function update_value( $value, $post_id, $field ) only handles each field seperate. Because the Amazon Product Advertising API only allows

… an initial usage limit of 1 request per second*.

I had to find another way.

So after a while I realized, that the only way to get all fields at once on save, is to hook into acf/save_post before it gets modified.

I have to place a seperate action hook into __constructor() / initialize():
add_action('acf/save_post', array($this, 'on_save_values'), 1);
and then iterate over all fields of acf:

function on_save_values( $post_id ) {
            // bail early if no ACF data
	        if( empty($_POST['acf']) ) {

		        return;

	        }
	        // array of field values
	        $fields = $_POST['acf'];
                
                foreach($fields as $layouts){
                    //...
        }

Maybe this helps anyone facing similar problems.