Use update_field() to fill in a field automatically

• joshualeong

• April 15, 2016 at 3:21 pm

Hi there,

I want to use update_field() function to fill in a field value automatically. However, the post saved but update_field() function doesn’t work.

here is my code in function.php:

add_filter('acf/pre_save_post' , 'do_pre_save_post' );
function do_pre_save_post( $post_id ) {
	
if( $post_id != 'new' ) {
    return $post_id;
}

if (isset($_POST['my_pt'])) {
	$new_post_type = "receipts";
        $title = wp_strip_all_tags($_POST['acf']['field_570f5acd84b60']);
	$product = $_POST['product'];
	
	$post = array(
        	'post_type'     => $new_post_type, 
        	'post_status'   => 'publish', 
        	'post_title'    => $title, 
    );
	
	$post_id = wp_insert_post( $post );
	
	update_field( "field_570f5b3f22fad", $product, $post_id );
}

return $post_id;

}

and here is the acf_form code:

$new_post = array(
			'post_id'            => 'new',
			'field_groups'       => array(68,72),
			'form'               => true,
			'return'             => '%post_url%',
			'html_before_fields' => '',
			'html_after_fields'  => '<div><input type="hidden" name="my_pt" value="receipts"><input type="hidden" name="product" value="'.$product_no.'"></div>',
			'submit_value'       => 'Submit',
			'updated_message'    => 'Saved'
		);
		acf_form( $new_post );

Thank you for help!!!

• James

• April 15, 2016 at 3:35 pm

Hi @joshualeong

You don’t need to use the wp_insert_post() function anymore with acf_form(). You can set the post type and status by passing the new_post arguments. This page should give you more idea about it: https://www.advancedcustomfields.com/resources/using-acf_form-to-create-a-new-post/. If you want to change the title, I suggest you use the acf/save_post and wp_update_post() instead.

I hope this helps.