function-sensei-teacher-caps.php

<?php
/**
 * Update Teacher capabilities
 * (synch with Author caps)
 *
 * @return void
 **************************************************/
function update_teacher_caps() {
	// get roles
	$author  = get_role('author');
	$teacher = get_role('teacher');

	// get capabilities
	$author_caps = $author->capabilities;
	$teacher_caps = $teacher->capabilities;

	// check whether we have to update the teacher role
	if ( is_array($author_caps) AND is_array($teacher_caps) AND $author_caps == $teacher_caps ) {
		// merge capabilities
		$caps = array_merge( $author->capabilities, $teacher->capabilities );

		// remove old role
		remove_role('teacher');

		// re-add updated role
		add_role( 'teacher', 'Teacher', $caps );
	}
}
?>