protected function get_data( $key, $student ) {

		switch ( $key ) {

			case 'id':
				$id = $student->get_id();
				if ( current_user_can( 'edit_users', $id ) ) {
					$value = '<a href="' . esc_url( get_edit_user_link( $id ) ) . '">' . $id . '</a>';
				} else {
					$value = $id;
				}
				break;

			case 'name':
				$first = $student->get( 'first_name' );
				$last  = $student->get( 'last_name' );

				if ( ! $first || ! $last ) {
					$value = $student->get( 'display_name' );
				} else {
					$value = $last . ', ' . $first;
				}

				$id = $student->get_id();
				if ( current_user_can( 'edit_users', $id ) ) {
					$value = '<a href="' . esc_url( get_edit_user_link( $id ) ) . '">' . $value . '</a>';
				}
				break;

			case 'email':
				$value = $student->get( 'user_email' );
				break;

			case 'enrolled_courses':
				$quiz   = llms_get_post( $this->quiz_id );
				$course = $quiz ? $quiz->get_course() : false;

				if ( $course ) {
					$enrollment_date = $student->get_enrollment_date( $course->get( 'id' ) );
					$value           = $enrollment_date ? $enrollment_date : '&mdash;';
				} else {
					$value = '&mdash;';
				}
				break;

			case 'status':
				$quiz   = llms_get_post( $this->quiz_id );
				$course = $quiz ? $quiz->get_course() : false;

				if ( $course ) {
					$status = $student->get_enrollment_status( $course->get( 'id' ) );
					$value  = ucfirst( $status );
				} else {
					$value = '&mdash;';
				}
				break;

			default:
				$value = $key;

		}// End switch().

		return $value;
	}