Hello,
I develop a processing algorithm for the toolbox. One of my parameters a
list of vector layers of type line, so in my initAlgorithm function I have
this statement:
self.addParameter(
QgsProcessingParameterMultipleLayers(
self.INPUT_LINES,
self.tr("Lines"),
QgsProcessing.TypeVectorLine,
optional=False
)
)
However, even if the optional parameter is set to False, it seems the user
can still set an empty list: so not setting anything actually. So for me,
this optional parameter doesn't work in this case.
Am I missing something here or is it a bug ? In this last case, I can
report it on github. I'm using QGIS on Windows 3.10.2-A Coruña
Thanks,
Jean-Charles
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