[Qgis-developer] refresh postgis layer

[Rémi Cura]

Hello dear list,

in  the process of developing a plugin (python 2.7, QGIS 2.6),

from pyqgis ,
we would like to refresh a Postgis layer.
When using the vectorLayer.refresh(), it does nothing.

We used a trick that works but seems like a bad idea :
(we slightly change the zoom to force rendering)
DEFAULT_SEGMENT_EPSILON = 1E-8
mapCanvas().zoomByFactor(1.0 + DEFAULT_SEGMENT_EPSILON, mapRect.center())

Somebody knows how to do it properly?
Thanks,
Rémi-C
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