Rate limiting based on member type using bp-activity-rate-limiter

member-type-activity-rate-limit.php

/**
 * Get time/count for the user
 *
 * @param int $user_id user id.
 *
 * @return array
 */
function buddydev_get_activity_mtype_based_rates( $user_id ) {

	// define a map from 'member_type' => array( 'time' => 'minutes', 'max' => 'how_many' )
	$settings = array(
		'student' => array(
			'time' => 60, // 60 minutes
			'max'  => 5, // maximum 5 in 1 hour.
		),
		'teacher' => array(
			'time' => 60,
			'max'  => 20, // 20 updates.
		), // repeat for others.
	);

	$member_types = bp_get_member_type( $user_id, false );
	// user does not have a member type.
	if ( empty( $member_types ) ) {
		return array();
	}

	foreach ( $member_types as $member_type ) {
		if ( isset( $settings[ $member_type ] ) ) {
			return $settings[ $member_type ];
		}
	}

	return array();// no match.
}

// filter allowed count.
add_filter( 'bp_rate_limit_activity_throttle_duration', function ( $allowed_time, $user_id ) {

	$settings = buddydev_get_activity_mtype_based_rates( $user_id );
	if ( ! empty( $settings ) ) {
		$allowed_time = $settings['time'];
	}

	return $allowed_time;
}, 10, 2 );

// filter allowed count.
add_filter( 'bp_rate_limit_activity_count', function ( $allowed_count, $user_id ) {

	$settings = buddydev_get_activity_mtype_based_rates( $user_id );
	if ( ! empty( $settings ) ) {
		$allowed_count = $settings['max'];
	}

	return $allowed_count;