Reply To: Front-end acf_form() – Hooks Using Global $post

• Howdy_McGee

• August 24, 2018 at 9:03 am

What I had was an ACF form on a frontend page where the user could create new posts. Something like this:

acf_form( array(
	'form'			=> true,
	'id'			=> 'prefix-acf-form',
	'post_id'		=> 'new_post',
	'new_post'		=> array(
		'post_type'		=> 'post_type_here',
		'post_status'	=> 'publish',
	),
	'field_groups'	=> array( Class_Here::get_acf_key( 'edit' ) ),
	'honeypot'		=> false,
) );

The idea being that I would save post_content field as the actual post content for the post.

The problem was that I was using global $post, so the pages content was being displayed instead of the expected nothing.

The solution was to check if the passed $post_id is either empty or new_post and if it is, return the value early before attempting to get the post content.

/**
 * Return post content if possible
 *
 * @param String $value - Field content
 * @param Mixed $post_id - Post ID, Empty, or 'new_post'
 *
 * @return String - Post content for given post ID
 */
function themeprefix_acf_post_content( $value, $post_id ) {
	
	// We already have a value for some reason, return it.
	if( ! empty( $value ) ) {
		return $value;
	}

	// We do not have a $post_id to pull from, return early.
	if( empty( $post_id ) || 'new_post' == $post_id ) {
		return $value;
	}
	
	return get_post_field( 'post_content', $post_id, 'edit' );
	
}
add_filter( 'acf/load_value/name=post_content', 'themeprefix_acf_post_content', 10, 2 );