Roles and permissions

I thought there should be a way of doing this without modifying the php code, but I couldn't figure it out even after spending a lot of time on the forums....

I had disabled guess log in and overrode roles to allow "Authenticated User" to view course. I want the registered but non-course enroled users to view the content of a course.

So after doing so, the "Authenticated user" can view course content but the link to "Enrol for this course" does not appear on the left admin block. I simply can't figure this out.

If I allow guess login and enable "course view" capability for guess on that course, the guess user CAN SEE the "enrol for this course" link.

Could someone tell me if there is a way to do this without hacking the PHP code ?


anyways, my hack was to change the block_admin.php to check for "moodle/lagacy:user" capability as well when presenting the "enrol for this course" link. see further below.

any help appreciated as to why I could not simply get this to work without hacking the code.

if (empty($course->metacourse) && ($course->id!==SITEID)) {
if (has_capability('moodle/legacy:guest', $context, NULL, false) )
{ // Are a guest now
$this->content->items[]='<a href="enrol.php?id='.$this->instance->pageid.'">'.get_string('enrolme', '', format_string($course->shortname)).'</a>';
$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/user.gif" class="icon" alt="" />';
} else if (has_capability('moodle/role:unassignself', $context, NULL, false) and get_user_roles($context, $USER->id, false)) { // Have some role
$this->content->items[]='<a href="unenrol.php?id='.$this->instance->pageid.'">'.get_string('unenrolme', '', format_string($course->shortname)).'</a>';
$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/user.gif" class="icon" alt="" />';
} else if ( has_capability('moodle/legacy:user', $context, NULL, false) ) {
$this->content->items[]='<a href="enrol.php?id='.$this->instance->pageid.'">'.get_string('enrolme', '', format_string($course->shortname)).'</a>';
$this->content->icons[]='<img src="'.$CFG->pixpath.'/i/user.gif" class="icon" alt="" />';
}
}