Results 3 issues of Hanjie Ji

Even though I setup Capybara.javascript_driver = :webkit within the rspec.config block, the specs are still running using RackTest.

I expected non-nullable value without default would raise an exception if trying to save null value. However it's not the case and there's no test coverage. I am wonder what...

we use rank model on our markets table. We didn't have an index on the row_order and ended up with lots of seq scan on the row_roder column. I suggest...