require login for pmpro

Membership pages require membership, which requires a user account. So PMPro does effectively require a login to access membership pages. I think I don’t understand what you really mean by “require login”.

The add_filter… code you mentioned is the correct way to tell PMPro to NOT redirect the default WP register page to the PMPro levels page. Are you trying then to have users redirect to the levels page after doing the default registration?

Couple notes.

1. In the PMPro advanced settings page, you can change the text shown to non-members and non-users. You can make the non-members text link to the levels page and the non-users text still link to the register page.

2. Custom code could be written that hooks into template_redirect and if the current user is not a member redirects them to the levels page. It would be something like this:

https://www.paidmembershipspro.com/2011/11/lock-down-everything-but-homepage-for-non-users/

(article is behind our paywall, so here is just the code: https://gist.github.com/strangerstudios/1332730)

I was able to make it so that if user is not logged in and if page is in the no okay pages based off of the gitbug link you posted. Here is that code:

function my_template_redirect()
{
	global $current_user;

	$not_okay_pages = array(pmpro_getOption('billing_page_id'), pmpro_getOption('account_page_id'), pmpro_getOption('levels_page_id'), pmpro_getOption('checkout_page_id'), pmpro_getOption('confirmation_page_id'));

	if (!$current_user->ID && is_page($not_okay_pages)) {
			wp_redirect(home_url("/login/?redirect_to=" . urlencode($_SERVER['REQUEST_URI']) ));
	}

}
add_action('template_redirect', 'my_template_redirect');