Search for a subset within a Group

Hi there,

In this case you might perhaps utilize the group hierarchy and once you identify the subsets, create(if necessary) those sub-groups and add these users to each respective sub-group. Each these sub-groups should have the same parent group, the one you’re looking into for subsets.

Also worth mentioning is the moment you wish to trigger that, on user creation or when a user is added to a group.

Useful resources:
– https://developer.www.ads-software.com/reference/hooks/user_register/
– groups_created_user_group
– https://github.com/itthinx/groups/blob/master/lib/core/class-groups-group.php#L255
– https://github.com/itthinx/groups/blob/master/lib/core/class-groups-user-group.php#L94

Kind regards,
George

I would simply approach this with an intersection:

1. Get all user IDs in that group:

$group = new Groups_Group( $group_id );
$group_user_ids = $group->user_ids;

2. Get users matching the desired time frame (*):

$period_user_ids = get_users(
	array(
        'fields' => 'ID',
        'date_query' => array(
            'compare' => 'BETWEEN',
            'day'     => [1,2],
            'month'   => [1,2],
            'year'    => [2022,2022]
        )
    )
);

3. Intersect :

$user_ids = array_intersect( $group_user_ids, $period_user_ids );

Which will give you the set of users matching both constraints.

—

(*) If you want to do the direct query instead of using get_users() with a date_query, you could do:

global $wpdb;
$user_query = $wpdb->prepare(
    "SELECT ID FROM $wpdb->users WHERE user_registered >= %s AND user_registered <= %s",
    '2022-01-01 00:00:00',
    '2022-02-02 23:59:59'
);
$period_user_ids = $wpdb->get_col( $user_query );