Fixes#2665.
Regenerated by tabbott with `lint --fix` after a rebase and change in
parameters.
Note from tabbott: In a few cases, this converts technical debt in the
form of unsorted imports into different technical debt in the form of
our largest files having very long, ugly import sequences at the
start. I expect this change will increase pressure for us to split
those files, which isn't a bad thing.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Fixes#1727.
With the server down, apply migrations 0245 and 0246. 0246 will remove
the pub_date column, so it's essential that the previous migrations
ran correctly to copy data before running this.
The code generating pub_dates for messages would fail to distribute them
across days if tot_messages was too large.
We refactor this code as a separate function (for clarity and to unit
test for the bug we're fixing), and change the structure and naming to a
form that more clearly describes what's happening. We also shift away
from the approach of all the float-to-int conversions as this is in
general tricky and bug prone - django's timedelta() handles floats as
arguments, so we take advantage of that.
Anders Kaseorg
Mateusz Mandera