How to Use Custom Meta Field Instead of CPT Title in Post URL

Question

I have a custom Post Type which is not using any of WP builtin supports like( 'title', 'editor', 'author', 'thumbnail', 'excerpt', 'comments' ). Instead I am using my own metaboxes to publish the CPT. Now after creating the CPT and publishing when I click on the View Post it navigates to a URL ending with auto-draft and on second CPT to auto-draft-2 and so on

http://domain.com/movies/auto-draft/

as you noticed this is still navigating to post default title instead of Post Custom Meta box. Can you please let me know how I can update this to use an specific metabox , lets say $name

$we_movieMetas = get_post_custom( $post->ID );
$name = isset( $we_movieMetas['name_box'] ) ? esc_attr( $we_movieMetas['name_box'][0] ) : '';
$boxOffice = isset( $we_movieMetas['boxOffice_box'] ) ? esc_attr( $we_movieMetas['boxOffice_box'][0] ) : '';

Update

Here is the code

function cpt_movie_post() {

    $labels = array(
        'name'                 => 'Movies',
        'singular_name'        => 'Movie',
        'menu_name'            => 'Movie',
        'name_admin_bar'       => 'Movie',
        'parent_item_colon'    => 'Parent Movie',
        'all_items'            => 'All Movie',
        'view_item'            => 'View Women ',
        'add_new_item'         => 'Add New Women ',
        'add_new'              => 'Add New Women ',
        'new_item'             => 'New Movie',
        'edit_item'            => 'Edit Moviee Item',
        'update_item'          => 'Update Movie Item',
        'search_items'         => 'Search Movie Item',
        'not_found'            => 'Moviee Not found',
        'not_found_in_trash'   => 'Moviee Not found in Trash',
    );
    $args = array(
        'label'                => 'Movie',
        'description'          => 'This Post Type Adds Movie to Website',
        'labels'               => $labels,
        'supports'             => array(''),
        'taxonomies'           => array( ),
        'hierarchical'         => true,
        'public'               => true,
        'show_ui'              => true,
        'show_in_menu'         => true,
        'show_in_nav_menus'    => true,
        'show_in_admin_bar'    => true,
        'menu_position'        => 5,
        'menu_icon'            => 'dashicons-layout',
        'rewrite'              => array( 'slug' => 'movie-post', 'with_front' => false ),
        'can_export'           => true,
        'has_archive'          => true,
        'exclude_from_search'  => false,
        'publicly_queryable'   => true,
        'capability_type'      => 'post',
    );
    register_post_type( 'movie_post', $args );

}

add_action( 'init', 'cpt_movie_post', 0 );


function movie_mtbox()
{
$post_types = array ( 'movie_post');
 foreach( $post_types as $post_type ){
    add_meta_box(
        "product-detail",
        "Movie Details ",
        "render_movie_metas",
        $post_type,
        "normal",
        "high"
    );
    }

}
function render_movie_metas( $post )
{
$we_movieMetas = get_post_custom( $post->ID );
$name = isset( $we_movieMetas['name_box'] ) ? esc_attr( $we_movieMetas['name_box'][0] ) : '';
$boxOffice = isset( $we_movieMetas['boxOffice_box'] ) ? esc_attr( $we_movieMetas['boxOffice_box'][0] ) : '';
}

add_action( 'save_post', 'we_metas_save' );
function we_metas_save( $post_id )
{
    if( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) return;
    if( !isset( $_POST['meta_box_nonce'] ) || !wp_verify_nonce( $_POST['meta_box_nonce'], 'my_meta_box_nonce' ) ) return;
    if( !current_user_can( 'edit_post' ) ) return;
    $allowed = array( 
        'a' => array( // on allow a tags
            'href' => array() // and those anchords can only have href attribute
        )
    );

    // Probably a good idea to make sure your data is set
    if( isset( $_POST['name_box'] ) ){
        update_post_meta( $post_id, 'name_box', wp_kses( $_POST['name_box'], $allowed ) );
    }
    if( isset( $_POST['boxOffice_box'] ) ){
        update_post_meta( $post_id, 'boxOffice_box', wp_kses( $_POST['boxOffice_box'], $allowed ) );
    }

}

Answer 1

You have to use a wp_update_post function and update the required fields based on available fields in WP_Post class.

add_action( 'save_post', 'wpse75679_save_post' );
function wpse75679_save_post( $post_id )
{
    if( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) return;

    // verify post is not a revision
    if ( ! wp_is_post_revision( $post_id ) ) {

    // unhook this function to prevent infinite loop
    remove_action( 'save_post', 'wpse75679_save_post' );

    // update the post slug and title
    wp_update_post( array(
        'ID' => $post_id,
        'post_title' => 'new-title'
        'post_name' => 'new-slug'
    ));

    // re-hook this function
    add_action( 'save_post', 'wpse75679_save_post' );
}