Add custom field automatically when post or page is publish

Adding this snippet to the functions.php of your wordpress theme will add a custom field to a post or page when published. Don't forget to update the FIELD_NAME and the CUSTOM VALUE.

add_action('publish_page', 'add_custom_field_automatically');
add_action('publish_post'. 'add_custom_field_automatically');

function add_custom_field_automatically($post_ID) {
    global $wpdb;
    if(!wp_is_post_revision($post_ID)) {
        add_post_meta($post_ID, 'FIELD_NAME', 'CUSTOM VALUE', true);

Comments  Leave a Reply

  1. Nice! And I guess we can use published_to_post hook to change that value. Or even better:

    function post_unpublished( $new_status, $old_status, $post ) {
    if ( $old_status == 'publish' && $new_status != 'publish' ) {
    // Post is unpublished
    add_action( 'transition_post_status', 'post_unpublished', 10, 3 );

    Any better way to do it?

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