function show_choice($top_unit)
{
global $course_id;
admin_page_head("Unit comparison");
echo "\n\t\t<form action=bolt_compare.php>\n\t\t<input type=hidden name=course_id value={$course_id}>\n\t\tThis tool lets you compare alternative lessons.\n\t\tThese lessons must be included in a 'select' unit,\n\t\ttypically with a random selection function.\n\t\tThis must be followed by an exercise set\n\t\tthat tests for the concepts in the lessons.\n\t\t<p>\n\t\tPlease choose a select unit\n\t";
choose_select($top_unit);
echo "\n\t\tand an exercise set\n\t";
choose_xset($top_unit);
echo "\n\t\t<input type=hidden name=action value=snap_form>\n\t\t<p>\n\t\t<input type=submit value=OK>\n\t";
admin_page_tail();
}
$course_id = get_int('course_id');
$course = BoltCourse::lookup_id($course_id);
$top_unit = (require_once $course->doc_file());
$action = get_str('action', true);
switch ($action) {
case "":
show_choice($top_unit);
break;
case "snap_form":
show_snap_form($top_unit);
break;
case "snap_action":
snap_action();
break;
case "compare":
show_compare();
break;
default:
error_page("Unknown action {$action}");
}
continue;
}
$user = $snap->users[$q->user_id];
echo "<tr>\n\t\t\t<td>" . time_str($q->create_time) . "</td>\n\t\t\t<td><a href=student>{$user->name}</td>\n\t\t\t<td>{$q->question}</td>\n\t\t\t</tr>\n\t\t";
}
end_table();
admin_page_tail();
}
$course_id = get_int('course_id');
$course = BoltCourse::lookup_id($course_id);
if (!$course) {
error_page("no course");
}
$top_unit = (require_once $course->doc_file());
$action = get_str('action', true);
switch ($action) {
case "":
show_snap_form();
break;
case "snap_action":
snap_action();
break;
case "map":
show_map();
break;
case "questions":
show_questions();
break;
default:
error_page("Unknown action {$action}");
}
