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wordpresscustom-post-typemultisite

Wordpress Network (multisite) how to only add custom posttype to main network?

I've got a WP Network. In the network I have a custom post type for an agenda. I only want to let it show up in the main/primary site/network. I've tried to is_main_network() in init. But it returns true on every site. (Is this approach too soon in init?)

Or in other words, how would I enqueue a new custom post type only in the primary network site?

This is my current code that does not work:

add_action( 'init', function () {
    if ( is_main_network() ) {

        $args = ...
        register_post_type( "agenda", $args );
    }
} );
Solution

  • According to docs, this will return bool if your on main site: https://developer.wordpress.org/reference/functions/is_main_site/

    add_action( 'init', function () {
    if ( is_main_site() ) {

        $args = ...
        register_post_type( "agenda", $args );
    }
} );