Marina Glancy eabbfa82d3 MDL-38147 Improvements to caching of course categories, coursecat::get_children() improvements
- Course categories caches are purged by event now
- session cache has additional 10 minutes ttl to clear itself and accomodate for permission changes that do not trigger event purging
- additional request-level cache for coursecat::get()
- We store only children of one category in one cache key
- Function coursecat::get_children() can return results sorted and/or paginated. Added tests
2013-03-25 13:23:15 +11:00
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