function dozent_instructor_detach_course( $course = null, $user = null ) {

		global $wpdb;

		$course = get_post( $course );
		$user   = dozent_get_the_user( $user );

		$is_attached = dozent_instructor_is_attached_to_course( $course, $user );

		if ( $is_attached ) {

			/**
			 * Action hook before detach an instructor from a course
			 *
			 * @since DozentLMS 1.0.0
			 *
			 * @param object $user User Object
			 * @param object $course Course Object
			 */

			do_action( 'dozent_instructor_detach_course_before', $user, $course );

			$deleted = $wpdb->delete( $wpdb->dozent_instructor_courses, [ 'ID' => $is_attached->ID ] );

			/**
			 * Action hook after detach an instructor from a course
			 *
			 * @since DozentLMS 1.0.0
			 *
			 * @param object $user User Object
			 * @param object $course Course Object
			 */

			do_action( 'dozent_instructor_detach_course_after', $user, $course );

			return $deleted;
		}

		return false;
	}