Review Request 8: Add Fedora 19 Milestones

[Tim Flink]

> On Feb. 26, 2013, 7:15 p.m., Tim Flink wrote:
> > Code looks good to me for the most part. I realize that we've talked about g versus session for storing this data before but I'm hitting some minor issues regarding the ability of the menu bars to update.
> > 
> > When I start adding/removing milestones, the only way that the menu bar is updated is if I start a new browser session - this means quitting the browser and re-starting _without_ restoring the previous session. There might be a better way to force a refresh but either way, I'm not so sure about putting the refresh burden on users instead of handling it in the app.
> > 
> > Unfortunately, I can't think of many good ways to make this work well that don't involve an extra database query per request. One way would be to have a statically defined expiration in the session (like 1 day after initial load) and force refresh after that expiration. However, that has its own pitfalls and adds complexity - I'm not convinced this is a good idea.
> > 
> > I'm wondering if it wouldn't be better to go back to what you had initially and use g. It would involve extra database queries but if that becomes a problem, caching would work well to reduce server load - most of the content is relatively static (in the timeframe of sync operations, 30 minutes right now) and caching could be a good way to work around this.
> 
> Martin Krizek wrote:
>     In general, I agree. However, and please correct me if I am wrong, our use case is to put milestones into db before the testing starts (before the app is actually used by anyone). Then there is a testing period and then there is a testing break during which the session expires. And after the break we put the new milestones into db again. In this scenario I don't see the problem with refreshing the milestones. Or do we add/delete/change milestones during the testing period? Or are we planning to do that? If so, we should use the g object, otherwise, I think we're better off with session.

True, the risk of having problems during the testing of a release are relatively small but I'd still rather not have to tell people to quit their browser or delete a cookie when new milestones aren't showing up in their browser.

One possible solution would be to hack at permanent sessions so that the lifetime is something like 1 day (http://stackoverflow.com/questions/11783025/is-there-an-easy-way-to-make-sessions-timeout-in-flask) but honestly, I'm thinking that the use of g would be a better solution right now - postgres is supposed to be good at caching query results and this one shouldn't change all that often - if we end up with performance problems, we can always revisit. The change from g to session isn't much code.


- Tim


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On Feb. 26, 2013, 9:28 a.m., Martin Krizek wrote:
> 
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> 
> (Updated Feb. 26, 2013, 9:28 a.m.)
> 
> 
> Review request for blockerbugs.
> 
> 
> Bugs: 332
>     https://fedorahosted.org/fedora-qa/ticket/332
> 
> 
> Repository: blockerbugs
> 
> 
> Description
> -------
> 
> Make navigation bar content loaded dynamically
> 
> 
> Diffs
> -----
> 
>   blockerbugs/templates/index.html 17b98b686664754de74158afb4c793e245660690 
>   blockerbugs/templates/base_nav.html f3a89798a9dadf297e722c067ad3795a72ebbf74 
>   blockerbugs/controllers/main.py e7525f8433d74802f7c0cb2d719f0abdc13431c4 
> 
> Diff: http://reviewboard-tflink.rhcloud.com/r/8/diff/
> 
> 
> Testing
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> 
> 
> Thanks,
> 
> Martin Krizek
> 
>

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