mypmpro-enroll-on-save-course-lifer.php

<?php //do not copy

function mypmpro_enroll_on_new_course( $course_id, $post, $update  ) {

	global $wpdb;
	
	if ( ! current_user_can( 'manage_options' ) ) {
		return;
	}

	// Learndash not active, bail.
	if ( ! function_exists( 'llms_is_user_enrolled' ) ) {
		return;
	}
	
	//Doing autosave - don't enroll
	if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
		return;
	}
	
	//Updating the post - don't enroll
	if ( $update ) {
		return;
	}
	
	//Post revision - don't enroll
	if ( wp_is_post_revision( $post_id ) ) {
		return;
        }


	$everyone_enrolled = get_post_meta( $course_id, 'pmpro_ld_enrolled', true );

	//Only enroll everyone if the course is being saved for the first time.
	if( $everyone_enrolled ) {
		return;
	}

	$sql = "SELECT pmu.user_id, pmu.membership_id FROM {$wpdb->prefix}pmpro_memberships_users pmu 
	LEFT JOIN {$wpdb->prefix}pmpro_memberships_pages mp ON pmu.membership_id = mp.membership_id 
	WHERE pmu.status = ‘active’ 
	AND mp.page_id = ". $course_id;

	$members_to_enroll = $wpdb->get_results( $sql );
		
	if ( empty( $members_to_enroll ) || ! is_array( $members_to_enroll ) ) {
		return;
	}

	// Loop through all members and make sure they aren't enrolled and enroll them.
	foreach( $members_to_enroll as $member ) {
		if ( ! llms_is_user_enrolled( $member->course_id, $member->user_id ) ) {
			llms_enroll_student( $member->user_id, $member->course_id );
		} else {
			// echo "This user had access - we're not giving it to them again<br/>";
		}
	}

	update_post_meta( $course_id, 'pmpro_ld_enrolled', true );

}
add_action( 'save_post_sfwd-courses', 'mypmpro_enroll_on_new_course', 10, 3 );