Posts 2 Users
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With this plugin, it's also possible to create many-to-many relationships between posts and users.
Here's how you would define such a connection type:
p2p_register_connection_type( array( 'name' => 'multiple_authors', 'from' => 'article', 'to' => 'user', 'to_query_vars' => array( 'role' => 'editor' ) ) );
You can leave out the
'to_query_vars' => array( 'role' => 'editor' ) line, in which case all users can be connected.
To get a list of users connected to a certain post, you can write:
$users = get_users( array( 'connected_type' => 'multiple_authors', 'connected_items' => $post ) );
To get a list of posts connected to a certain user, you can write:
$posts = get_posts( array( 'connected_type' => 'multiple_authors', 'connected_items' => $user, 'suppress_filters' => false, 'nopaging' => true ) );
Note: Currently (P2P 1.5), the connections metabox will not show up when editing a user. See https://github.com/scribu/wp-posts-to-posts/issues/261