Hi Alexandre,
When the layer is a PostgreSQL layer, it's the method from
QgsVectorLayer which is called:
https://qgis.org/pyqgis/3.32/core/QgsVectorLayer.html#qgis.core.QgsVectorLayer.loadNamedStyle
https://api.qgis.org/api/classQgsVectorLayer.html#a2bd3a21badac411179dbfbc724136a45
The documentation is somewhat incomplete, as "loadFromLocalDb" boolean
set to true will in fact call QgsMapLayer::loadNamedStyle()
https://api.qgis.org/api/classQgsMapLayer.html#a8b271b8bf3074e84808cff26f722b26f
which says: "[...] First an attempt will be made to see if this is a
file and load that, if that fails the qgis.db styles table will be
consulted to see if there is a style who's key matches the URI."
Regards,
--
Jacky Volpes
Ingénieur SIG - Oslandia
--
Le 9/11/23 à 13:33, Alexandre Neto via QGIS-Developer a écrit :
I am trying to load a style from a QML file into a vector layer.
When I use a memory layer, loading the style works fine with the
following code:
layer = iface.activeLayer()
layer.loadNamedStyle(path_to_style)
If the layer is a postgreSQL layer with a default style, the above
code will return:
('Loaded from provider', True)
and the style from the QML won't be loaded. The way to force it was
add a True parameter in the end of the method call:
layer = iface.activeLayer()
layer.loadNamedStyle(path_to_style, True)
Not sure if this is the correct behavior, but it does not match with
the documentation:
https://api.qgis.org/api/classQgsMapLayer.html#a8b271b8bf3074e84808cff26f722b26f
Thanks,
Alexandre Neto
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