Bug report #10936
setFilterExpression() does not works
| Status: | Closed | ||
|---|---|---|---|
| Priority: | High | ||
| Assignee: | - | ||
| Category: | Vectors | ||
| Affected QGIS version: | 2.4.0 | Regression?: | No |
| Operating System: | all | Easy fix?: | No |
| Pull Request or Patch supplied: | No | Resolution: | duplicate |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 19292 |
Description
QgsFeatureRequest allows advanced features filtering via setFilterExpression() method. But seems this does not work, at least when using from Python.
Here is code snippet:
layer = iface.mapCanvas().currentLayer()
expr = '"dt" = \\'2014-07-05\\' AND abs("y" - 3.0) <= 0.000001'
request = QgsFeatureRequest().setFilterExpression(expr)
for f in layer.getFeatures(request):
print 'found'
To reproduce:
- open attached shapefile and make it active
- in Python console execute above code
- no features found
- now try to use same expression with "Select by Expression" tool, it finds one feature as expected.
See also this thread http://lists.osgeo.org/pipermail/qgis-developer/2014-July/033965.html
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