How to edit post title with acf_form

• ckirk

• November 26, 2014 at 6:28 am

I have an acf_form set up where users can add a new post, and the post’s title would be generated by a custom field. It’s working for adding the new post.

However, when I try to edit that post afterwards using a similar call of acf_form, I can’t get the custom field to change the post title.

I’m using this for my acf_form() call:

    $args = array(
    	'post_id' => $post->ID,
    	'field_groups' => array( 4 ),
    	'submit_value' => 'Submit Changes',
    	'return' => '%post_url%'
    );
    
    acf_form( $args ); 

And here’s what’s in my functions.php file:

function my_pre_save_post( $post_id )
{
    // check if this is to be a new post
    if( $post_id != 'new' )
    {
        return $post_id;
    }

    // Create a new post
    $post = array(
        'post_status'  => 'publish',
        'post_title'  => $_POST['acf']['field_1234'],
        'post_type'  => 'post'
    );  

    // insert the post
    $post_id = wp_insert_post( $post ); 

    // update $_POST['return']
    $_POST['return'] = add_query_arg( array('post_id' => $post_id), $_POST['return'] );    

    // return the new ID
    return $post_id;
}

add_filter('acf/pre_save_post' , 'my_pre_save_post' );

Basically, just trying to get that custom field to change the post’s title, but I think I need a push in the right direction.

EDIT: Was able to fix this by adding to my functions file:

    // check if this is to be a new post
    if( $post_id != 'new' )
    {
        $postData = array(
            'post_title' => $_POST['acf']['field_1234'],
        );
        wp_update_post($postData);
        return $post_id;
    }

• JustinCase

• November 30, 2014 at 7:41 pm

ckirk, how did you get the title to set from another field?

I need that to work, but I keep getting “no-title” when the post is created.

Where did you get “field_1234”? Is it the field key?

• Elliot

• December 12, 2014 at 12:27 pm

Hi @JustinCase

You can find the field’s keys by editing a field group, clicking on ‘Screen Options’ and toggling the option to show field keys