Emi Matchu 470c805880 Save last trade activity time onto User ... In impress-2020, we do a big slow query to figure out which users have been active in trades recently. Now, we cache that timestamp on the User model. This won't have any immediate effect; it's to clear the way for Classic DTI to receive the better trade ratios feature people like from 2020. I also added some unit testing infra because I finally wanted it! for all the ways you can trigger this timestamp lol Note too that this is a bit of an unusually complex migration, but my hope is that the batching and query structure and such helps it run surprisingly fast! 🤞		2024-01-19 00:00:46 -08:00
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test_helper.rb	Save last trade activity time onto User	2024-01-19 00:00:46 -08:00
trade_activity_test.rb	Save last trade activity time onto User	2024-01-19 00:00:46 -08:00