Hi Jeremy
doesn't support setSubsetString.
poor operator support for filters e.g no LIKE or spatial stuff
This is not a general limitation of the WFS provider. There is the
possibility of writing the filter xml into the filter dialog as a string
if needed. I know, it is not very comfortable. But does the OGR driver
come with a better GUI?
Of course continuing to develop the current driver has the advantage of tighter integration with the QT
framework and >QGIS. Such as utilising QT network and proxy management.
I'd add to that list the possibility of aborting long requests and
receiving status updates (progress bar if server provides total, number
of incoming bytes if not).
In my opinion, it is definitely worth to have a native provider. Support
for GML2 is already in QgsGeometry and there is no reason why not adding
GML3 too.
Regards,
Marco
Am 31.01.2013 07:41, schrieb Jeremy Palmer:
What peoples thoughts about the state of this provider. The currently
limitations I see currently with it is:
poor handling of larges datasets (e.g http://hub.qgis.org/issues/4604)
doesn't support WFS 1.1 or WFS 2.0 (or GML payloads that go along with
those versions)
doesn't support setSubsetString.
poor operator support for filters e.g no LIKE or spatial stuff
Doesn't query GetCapabilities to determine supported functions or
operators.
Poor user connection UI (i have a patch to improve this to using
QSortFilterProxyModel)
I wondering if one way to deal to a lot of these issues is to use the
OGR WFS implementation with QGIS. As of OGR 1.9 its support for WFS is
very good. Benefits are:
common code (worked on by more people)
handles filters better
handles talking to different implementations of the standards better
(e.g mapserver, Geoserver, deegree)
handles fetching larger datasets better e.g with paging support etc
Of course continuing to develop the current driver has the advantage
of tighter integration with the QT framework and QGIS. Such as
utilising QT network and proxy management.
Cheers,
Jeremy
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