Improve performance on grade overview and statistics pages

catherinelu / scoryst

Efficient, meaningful grading.

https://scoryst.com

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Improve performance on grade overview and statistics pages #76

Closed karthikv closed 10 years ago

karthikv commented 10 years ago

Biggest performance impact was writing raw SQL queries, doing more prefetch_related()/select_related(), and having cached points/graded fields. Needs more testing to confirm everything works.

Note: the migration with this PR takes forever.

catherinelu commented 10 years ago

done reviewing

karthikv commented 10 years ago

Rebased.