[Qgis-user] WFS caching behaviour

[Jonathan Moules]

Hi Jukka,
  You do seem to like Fiddler!
I was using my web-server logs, however Fiddler is confirming that the WFS
isn't making new requests when I zoom in/our except when I'm at distance
zoom's (it should do it at all zooms).

So bug report it is.
Cheers,
Jonathan


On 27 January 2014 18:05, Jukka Rahkonen <jukka.rahkonen at mmmtike.fi> wrote:

> Jonathan Moules <jonathanmoules at ...> writes:
>
> >
> >
> > Hi List,Before I report this one as a bug, I figured I should check.
> >
> > What's the desired behaviour of the WFS client in QGIS in respect to
> caching results versus making new requests.
> >
> >
> > Example:
> > WFS server only returns 500 results for any given request. There are
> 51639
> features in the layer.
> >
> > - If I load the layer using the "Cached" checkbox as ticked, then QGIS
> only loads 500 features. Fine.
> >
> >
> > - If I then add the layer again, but with "cached" unticked, then QGIS
> only loads 500 features - but they're 500 different features. Fine.
> >
> > Except in both cases when I zoom in/out, the features don't change; QGIS
> doesn't make new requests. I thought it was supposed to, at least with the
> uncached version? Both appear to behaving the exact same way to me.
> >
> > Am I doing something wrong?
>
> Hi,
>
> Made a trial with v. 2.0.1 and checked with Fiddler2 proxy what happens (I
> recommend).
> - With caching a plain GetFeature is sent and you will get the 500 first
> records.
> - Without caching QGIS adds a BBOX filter and applies the extents of the
> current map view. You will get the first 500 records within the box.
> - After zooming/panning a new request with BBOX filter gets fired.
>
> I can't say why QGIS does not send new features for you. But you a the one
> who should absolutely install Fiddler or some other logging proxy and you
> can do loads of wonderful bug reports in the future.
>
> -Jukka Rahkonen-
>
>
> >
> > Thanks,Jonathan
> >
> >
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