This follows from investigations in
https://rt.lca2018.org/Ticket/Display.html?id=283&results=eac0bd3c49f782d054f87d6b160ca36b;
in short, it seems that because this very long and complex method
creates several different objects at differnt times, the DB has been
getting out of sync; there are more votes recorded then there are
reviews, becuase the table that stores the vote count is updated
before the table that stores the vote and review information
This change is intended to make this operation (and the other
operations that the revew_detail handler performs) atomic, to prevent
things getting further out of step. It does *not* fix the existing
incosistency.
review_delete has been atomicified as well as it likely needs the same
treatment, but this has not been examined in detail.
Resolves:
File "/app/symposion_app/vendor/symposion/reviews/views.py", line 230, in review_random_proposal
proposals = proposals[:(len(proposals) + 1) / 2]
TypeError: slice indices must be integers or None or have an __index__ method
I have no idea why we do this in the database as some magic after we
call save(). I also have no idea why MySQL is seeming to think we want
type BIGINT UNSIGNED at the end of the
((2 * '+2' + '+1') - ( '-1' + 2 * '-2')) but it does.
Setting it to 2.0 or float(2) doesn't get the ORM to get this right, but
we are going to Decimal and making the 2 multiplier be of type Decimal
manages to make the ORM pull it's shit together and use something that
seems like we're okay with.
+1, -2 = 1 / 2 = -0.5 Score == True
Looks like it works.
UPDATE `symposion_reviews_proposalresult` SET `score` = CASE WHEN `symposion_reviews_proposalresult`.`vote_count` = 0 THEN '0' ELSE ((((2 * `symposion_reviews_proposalresult`.`plus_two`) + `symposion_reviews_proposalresult`.`plus_one`) - (`symposion_reviews_proposalresult`.`minus_one` + (2 * `symposion_reviews_proposalresult`.`minus_two`))) / (`symposion_reviews_proposalresult`.`vote_count` * 1)) END WHERE `symposion_reviews_proposalresult`.`id` = 1
* Tweaks help_text to indicate that travel assistance is to Sydney
* Includes the required migration
This migration doesn't change the DB so it's safe to apply with the system live.
The current ordering is based on what appears to be a random ordering
that happens to correlate to the last time the paper was submitted or
updated. Oldest to most recent.
This changes it to submission order so ordering doesn't change and ID is
a static, making it easier to move through a list of papers. "I last
looked at 24, so 25 is assured to be the next one I want to look at.
There's the thought of updated papers being looked at and voted on, but
it does not seem to me that this is supported or possible. In general
one would look at their un-reviewed list, and go off it, which puts
updates out the window.
We can certainly order on other fields if desired, but this one makes
the most since to me.
This was removed somewhere in 1.8, which means this results in a
failure. If I understand correctly, this "name" is now derived from the
model name's __str__ or something like that.
So django keeps strict synchronization between its code and migrations
so that it can help generating new migrations. These are the additional
suggested migrations. A lot of these are a null effect, some are things
like transforming an unsigned integer to a signed integer. So not super
urgent on a small scale, but worth doing to keep django happy.
Link to the T&C and Code of conducts so people know what they are
accepting. Create this as a static link because i don't know how django
would accept this being something dynamic on the model.
This annoyingly creates a migration, but it's not a real change and
easier to accept it now than fight django forever.
