posts per page in admin for 'places'

Stiofan’s advice is correct for the admin page.
Then I tried changing the front end, using the link that Alex posted. First I used the Settings/Reading/Max#BlogPosts
No luck
Then I tried adding this to functions.php

function set_posts_per_page_for_cpt( $query ) {
if ( ! is_admin() && $query->is_main_query() && is_post_type_archive( ‘gd_place’ ) ) {
$query->set( ‘posts_per_page’, ’20’ );
}
}
add_action( ‘pre_get_posts’, ‘set_posts_per_page_for_cpt’ );

Still no luck.

Thanks for taking a look at this

need to set the number of posts seen on the front end for ALL users.
Right now it’s stuck on 5 listings per page – way too small.

http://directory.creates.today/places/

I don’t mind patching functions.php but can’t figure it out.

My last code snippet was an attempt to set it for ‘not admin’ users
This snippet tries to do it for ALL users, but no luck

function set_posts_per_page_for_cpt( $query ) {
if ( $query->is_main_query() && is_post_type_archive( ‘gd_place’ ) ) {
$query->set( ‘posts_per_page’, ’20’ );
}
}
add_action( ‘pre_get_posts’, ‘set_posts_per_page_for_cpt’ );

Does not work

works!