Chris, Also not there is previsions to add this kind of thing to QgsFeatureRequest http://www.qgis.org/api/qgsfeaturerequest_8h_source.html
- Nathan On Tue, Apr 30, 2013 at 4:33 PM, Chris Crook <[email protected]> wrote: > Hi All > > As we are looking at API tidy ups (I understand), would there be any > support for providing a bit more granularity in supportsSubsetString. At > the moment this is a simple boolean, and the GUI offers a SQL based subset > string builder. > > However not all providers naturally use SQL based strings. I'm interested > in adding subset capability to the delimited text provider, whichi I've > done using QgsExpression as the basis for subsets. This works very well > except that the GUI isn't an expression builder. I think there may be > similar issues with the WFS provider. > > What I am proposing is something more like an enum > QgsDataProvider::SubsetStringType, which could then be interrogated by the > properties dialog to select the appropriate query builder dialog. > > Logically this would supplant the supportsSubsetString boolean which could > be deprecated, replaced with > > virtual QgsDataProvider::SubsetStringType > QgsDataProvider::subsetStringType(){ return NoSubsetString; } > > Other types could be SqlSubsetString, ExpressionSubsetString, ...? > > Thoughts anyone? > > Thanks > Chris > > This message contains information, which is confidential and may be > subject to legal privilege. If you are not the intended recipient, you must > not peruse, use, disseminate, distribute or copy this message. If you have > received this message in error, please notify us immediately (Phone 0800 > 665 463 or [email protected]) and destroy the original message. LINZ > accepts no responsibility for changes to this email, or for any > attachments, after its transmission from LINZ. Thank You. > _______________________________________________ > Qgis-developer mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-developer >
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