Auto populating post title with the post ID
written by: Jeff McNearAuto populating post title with the post ID
This is a very narrow use case. Recently a client wanted to have the title of a custom post type auto-populate with an incrementing number. In WordPress the post ID is an auto-incrementing (and unique) number attached to each piece of content. So after some deep digging I found this post: https://wordpress.stackexchange.com/questions/168945/how-to-assign-a-custom-post-title-to-be-the-post-id that provided the crucial block of code to be placed in the functions file of the active theme:
function wpd_default_title_filter( $post_title, $post ) {
if( 'project_type' == $post->post_type ) {
return 'Job #' .$post->ID;
}
return $post_title;
}
add_filter( 'default_title', 'wpd_default_title_filter', 20, 2 );
In this case “project_type” is the post type where the auto incrementing is taking place and the post ID is prefaced by the term “Job #”.
The title field still remains editable, allowing the auto generated title to be over written.