I have two keys in the database called background-video-length
and slide_duration
. The one called background-video-length
is not always set, when it is not, it is NULL
. If it is anything but NULL
I want to transfer the value from background-video-length
to slide_duration
and replace whatever is set in this one.
And another thing, slide_duration
isn't always there, when it is empty it is removed, so it must be created if background-video-length
value contains anything. If background-video-length
is NULL
I want to delete slide_duration
if it doesn't contain anything previously.
EDIT:
I have this code to set the background-video-length
in the database:
$attachment_id = attachment_url_to_postid( $_POST[ 'background-video' ] );
$video_meta = get_post_meta( $attachment_id , '_wp_attachment_metadata', true );
if( isset( $_POST[ 'background-video' ] ) ) {
update_post_meta( $post_id, 'background-video-length', $video_meta['length'] );
}