Fügen Sie einen Link hinzu, um einen Beitrag einfach zu duplizieren

Haben Sie sich jemals eine einfachere Möglichkeit gewünscht, den gesamten Inhalt eines Beitrags schnell zum Bearbeiten zu kopieren, ohne den veröffentlichten Beitrag zu berühren?

Der folgende Codeausschnitt fügt eine Option zum einfachen Duplizieren eines Beitrags mit seinem gesamten Inhalt hinzu:

// Add duplicate button to post/page list of actions.
add_filter( 'post_row_actions', 'wpcode_snippet_duplicate_post_link', 10, 2 );
add_filter( 'page_row_actions', 'wpcode_snippet_duplicate_post_link', 10, 2 );
 
// Let's make sure the function doesn't already exist.
if ( ! function_exists( 'wpcode_snippet_duplicate_post_link' ) ) {
    /**
     * @param array   $actions The actions added as links to the admin.
     * @param WP_Post $post The post object.
     *
     * @return array
     */
    function wpcode_snippet_duplicate_post_link( $actions, $post ) {
 
        // Don't add action if the current user can't create posts of this post type.
        $post_type_object = get_post_type_object( $post->post_type );
 
        if ( null === $post_type_object || ! current_user_can( $post_type_object->cap->create_posts ) ) {
            return $actions;
        }
 
 
        $url = wp_nonce_url(
            add_query_arg(
                array(
                    'action'  => 'wpcode_snippet_duplicate_post',
                    'post_id' => $post->ID,
                ),
                'admin.php'
            ),
            'wpcode_duplicate_post_' . $post->ID,
            'wpcode_duplicate_nonce'
        );
 
        $actions['wpcode_duplicate'] = '<a href="' . $url . '" title="Duplicate item" rel="permalink">Duplicate</a>';
 
        return $actions;
    }
}
 
/**
 * Handle the custom action when clicking the button we added above.
 */
add_action( 'admin_action_wpcode_snippet_duplicate_post', function () {
 
    if ( empty( $_GET['post_id'] ) ) {
        wp_die( 'No post id set for the duplicate action.' );
    }
 
    $post_id = absint( $_GET['post_id'] );
 
    // Check the nonce specific to the post we are duplicating.
    if ( ! isset( $_GET['wpcode_duplicate_nonce'] ) || ! wp_verify_nonce( $_GET['wpcode_duplicate_nonce'], 'wpcode_duplicate_post_' . $post_id ) ) {
        // Display a message if the nonce is invalid, may it expired.
        wp_die( 'The link you followed has expired, please try again.' );
    }
 
    // Load the post we want to duplicate.
    $post = get_post( $post_id );
 
    // Create a new post data array from the post loaded.
    if ( $post ) {
        $current_user = wp_get_current_user();
        $new_post     = array(
            'comment_status' => $post->comment_status,
            'menu_order'     => $post->menu_order,
            'ping_status'    => $post->ping_status,
            'post_author'    => $current_user->ID,
            'post_content'   => $post->post_content,
            'post_excerpt'   => $post->post_excerpt,
            'post_name'      => $post->post_name,
            'post_parent'    => $post->post_parent,
            'post_password'  => $post->post_password,
            'post_status'    => 'draft',
            'post_title'     => $post->post_title . ' (copy)',// Add "(copy)" to the title.
            'post_type'      => $post->post_type,
            'to_ping'        => $post->to_ping,
        );
        // Create the new post
        $duplicate_id = wp_insert_post( $new_post );
        // Copy the taxonomy terms.
        $taxonomies = get_object_taxonomies( get_post_type( $post ) );
        if ( $taxonomies ) {
            foreach ( $taxonomies as $taxonomy ) {
                $post_terms = wp_get_object_terms( $post_id, $taxonomy, array( 'fields' => 'slugs' ) );
                wp_set_object_terms( $duplicate_id, $post_terms, $taxonomy );
            }
        }
        // Copy all the custom fields.
        $post_meta = get_post_meta( $post_id );
        if ( $post_meta ) {
 
            foreach ( $post_meta as $meta_key => $meta_values ) {
                if ( '_wp_old_slug' === $meta_key ) { // skip old slug.
                    continue;
                }
                foreach ( $meta_values as $meta_value ) {
                    add_post_meta( $duplicate_id, $meta_key, $meta_value );
                }
            }
        }
 
        // Redirect to edit the new post.
        wp_safe_redirect(
            add_query_arg(
                array(
                    'action' => 'edit',
                    'post'   => $duplicate_id
                ),
                admin_url( 'post.php' )
            )
        );
        exit;
    } else {
        wp_die( 'Error loading post for duplication, please try again.' );
    }
} );

Nachdem Sie den Code hinzugefügt haben, gehen Sie zum Bildschirm „Beiträge“ „Alle Beiträge“ und bewegen Sie die Maus über einen Beitragstitel.

Unter den Optionen werden Sie einen neuen Link „Duplizieren“ bemerken.