Editing existing pre-created menus in PHP

Question

Here's my pickle. I'm using a script to automatically create a fully pledged WordPress site. In this process new pages, etc are created automatically. I now need a way to add the newly created page(s) to an existing menu on site from the script (this menu was created automatically by the theme I us and is pre-filled with links to some demo pages).

The script has full access to all WordPress functions, but I cannot use hooks (since this is all run before the site is even up). Is there a way to pull an existing menu into the script and change it's contents?

EDIT: In regards to the possible duplicate, the other article provides a way to create a new menu. I'm in the market for a way to recover and edit an existing menu to change it's layout and add items to it. :)

Thanks in advance! :)

Answer 1

I've found a solution to my problem by going over the documentation again and again, looking through source files and just generally running the same section of code over and over to scrutinize the output.

This is the solution I came up with, which works just perfectly for my needs:

//  Get a list of all the menus that are part of the site
    $menu_list = wp_get_nav_menus();
    $menu_id = -1;
//  Iterate over all the menus...
    foreach( $menu_list as $menu ) {
    //  ...and find the one you want...
        if( $menu->name === 'Main Menu' ) {
        //  ...and get it's ID.
            $menu_id = $menu->term_id;
        }
    }

//  Delete everything except the Home entry
    $menu_content = wp_get_nav_menu_items( 'Main Menu' );
    foreach( $menu_content as $menu_item ) {
        if($menu_item->title !== 'Home') {
            wp_delete_post($menu_item->ID);
        }
    }

   /* OTHER CODE USED FOR BUILDING PAGES, ETC CODE */

   /**
    *   Menu building code
    *
    *   @since 0.4.0pre1
    */
    $menu_data = array(
                        'menu-item-title' => ( $menu_text !== '' ) ? wp_strip_all_tags( $menu_text ) : wp_strip_all_tags( $page_title ),
                        'menu-item-object' => 'page',
                        'menu-item-parent-id' => ( $parent !== '' || $parent !== 'none' ) ? intval( $parent ) : 0,
                        'menu-item-position'  => ( $menu_position !== '' ) ? ( intval( $menu_position ) === 1 ? 2 : intval( $menu_position ) ): 2,
                        'menu-item-object-id' => $post_id,
                        'menu-item-type' => 'post_type',
                        'menu-item-status' => 'publish'
                     );

//  Add this menu item to the existing nav menu if it is set to visible
    if( intval( $menu_visible ) !== false ) {
        wp_update_nav_menu_item( $menu_id, 0, $menu_data );
    }

Feel free to suggest any improvements to the code, or any other suggestions :)