Modifies WP Fusion's course access permissions for LearnDash so users must be enrolled in the course to see the course page

wpf-learndash-require-enrolled.php

<?php

// Check course access

function check_ld_access( $can_access, $user_id, $post_id ) {

	if ( ! function_exists( 'sfwd_lms_has_access' ) ) {
		return $can_access;
	}

	if ( 'sfwd-courses' == get_post_type( $post_id ) ) {

		$settings = get_post_meta( $post_id, 'wpf-settings', true );

		if ( true == $settings['lock_content_enrolled'] && false == sfwd_lms_has_access( $post_id, $user_id ) ) {
			$can_access = false;
		}
	}

	return $can_access;

}

add_filter( 'wpf_user_can_access', 'check_ld_access', 10, 3 );

// Add the checkbox to the course meta box

function ld_restrict_content_checkbox( $post, $settings ) {

	if ( 'sfwd-courses' == $post->post_type ) {

		echo '<p>';
		echo '<input class="checkbox wpf-restrict-access-checkbox" type="checkbox" name="wpf-settings[lock_content_enrolled]" value="1" ' . checked( $settings['lock_content_enrolled'], 1, false ) . ' />';
		echo '<label class="wpf-restrict-access">Users must be enrolled in to view this course</label>';
		echo '</p>';

	}

}

add_action( 'wpf_meta_box_content', 'ld_restrict_content_checkbox', 12, 2 );