Hello,
I've been further this morning... You just need to build a
QgsFeatureRequest which grabs the NoGeometry features.
layer =
QgsMapLayerRegistry.instance().mapLayersByName('MY_ATTRIBUTE_TABLE')[0]
for f in
layer.getFeatures(QgsFeatureRequest().setFlags(QgsFeatureRequest.NoGeometry)):
print f
This behavior seems to be specific to Oracle NoGeometry QgsVectorLayers.
I have made tests under PostGIS and Spatialite and you can use the
getFeatures() method without specifying a QgsFeatureRequest to grab all
the features of the layer.
Should I file a bug report on Oracle provider ?
Best regards,
Le 2014-12-09 17:47, mederic.ribreux a écrit :
Hello,
I am trying to iterate over a non geographic table under PyQGis. The
table is stored in an Oracle database and I use QGis Api to get the
data (table is opened in a QGis project with Oracle provider). I have
added primary key constraint to this table but I am not able to
iterate through its features with the getFeatures() method. The
following snippet always returns nothing:
layer =
QgsMapLayerRegistry.instance().mapLayersByName('MY_ATTRIBUTE_TABLE')[0]
for f in layer.getFeatures():
print f
I have tried with a geographic layer and there is no problem on this
side because the above snippets prints a line for every feature in the
table. I have also tried with opening the geographic table without
geometry (geometry is "No Geometry"). In this configuration, I am not
able to get access to the features...
I have tried to reproduce this on a PostgreSQL/PostGIS server and
there is no bug: I am able to iterate over a non-geographic layer
(even a geographic layer declared as non-geographic).
Is this a problem with the Oracle provider or just me having forgotten
something in the table ?
Best regards
--
Médéric RIBREUX
http://medspx.homenet.org
_______________________________________________
Qgis-developer mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/qgis-developer
