With 2500 courses the calendar was causing around 15000 queries at login and 5000 on the home page.
- Replaced queries inside loops with single unlooped queries.
- Fixed calendar so that course events will show when the users role is assigned at a category level.
- Moved calendar_session_vars() function call out of calendar/lib.php (including a lib should not have side effects)
Author: Matt Clarkson - with some conflict resolution from MartinL
Moodle calendar.
* Adding strings
* Adding more information to iCalendar output
* Making iCalendar output compatible with a wider range of calender software
* Removing (non-functional) advanced options for now, and other superfluous
code
* Paying attention to all / course events option
* Adding authentication token system to allow subscription
* Adding JavaScript to generate URL for subscription
* Adding links from calendar page
Author: Andrew Walbran <andrew.walbran@catalyst.net.nz>
