Generate Post Title and Slug from ACF Fields

I often need to create post titles in WordPress based on fields I’ve generated using Advanced Custom Fields. Below is an example that assumes we have a Custom Post Type registered to “staff” and two Custom Fields with the name of “first_name” and “last_name”. Using the “update_value” hook provided by Advanced Custom Fields and “wp_update_post” I am able to update the Slug and Post Title using the values given in the respective fields.

// Create Title and Slug

function acf_title( $value, $post_id, $field ) {

 if ( get_post_type( $post_id ) == 'staff' ) {

 $new_title = get_field('first_name', $post_id) . ' ' . $value;

 $new_slug = sanitize_title( $new_title );

 // update post

 wp_update_post( array(

 'ID' => $post_id,

 'post_title' => $new_title,

 'post_name' => $new_slug,

 ) );

 }

 return $value;

}

add_filter( 'acf/update_value/name=last_name', 'acf_title', 10, 3 );

view raw advanced-custom-fields-post-title.php hosted with ❤ by GitHub

To disable the Title field I remove it from the supports argument for the register_post_type.

'supports' => array( 'editor', 'thumbnail', 'revisions', 'page-attributes' ),

Disabling the title at a custom post type level will, unfortunately, remove the clickable permalink below the title that I often use. To combat that I create a very simple metabox with the permalink. Demonstrated below. (I believe this is no longer the case with Post Types using the Block Editor)

/**

 * Adds a meta box

 */

function simple_meta_box() {

 add_meta_box( 'prfx_meta', ( 'View Post' ), 'simple_meta_box_callback', 'staff', 'side', 'high' );

}

add_action( 'add_meta_boxes', 'simple_meta_box' );

/**

 * Outputs the content of the meta box

 */

function simple_meta_box_callback( $post ) {

 echo '<a href="';

 the_permalink();

 echo '" class="button button-small" target="_blank">View Profile</a>';

}

view raw simple-custom-meta-box.php hosted with ❤ by GitHub

Generate Post Title and Slug from Advanced Custom Fields

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	// Create Title and Slug
	function acf_title( $value, $post_id, $field ) {
	if ( get_post_type( $post_id ) == 'staff' ) {

	$new_title = get_field('first_name', $post_id) . ' ' . $value;
	$new_slug = sanitize_title( $new_title );

	// update post
	wp_update_post( array(
	'ID' => $post_id,
	'post_title' => $new_title,
	'post_name' => $new_slug,
	) );
	}
	return $value;
	}
	add_filter( 'acf/update_value/name=last_name', 'acf_title', 10, 3 );

	/**
	* Adds a meta box
	*/
	function simple_meta_box() {
	add_meta_box( 'prfx_meta', ( 'View Post' ), 'simple_meta_box_callback', 'staff', 'side', 'high' );
	}
	add_action( 'add_meta_boxes', 'simple_meta_box' );

	/**
	* Outputs the content of the meta box
	*/
	function simple_meta_box_callback( $post ) {
	echo '<a href="';
	the_permalink();
	echo '" class="button button-small" target="_blank">View Profile</a>';
	}

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