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Fix SAGA parameter value check

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This commit is contained in:
Nyall Dawson 2018-05-28 15:23:20 +10:00
parent a26ae3c1d9
commit e25c81377e
1 changed files with 10 additions and 6 deletions
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16
python/plugins/processing/algs/saga/SagaAlgorithm.py
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@ -414,17 +414,21 @@ class SagaAlgorithm(SagaAlgorithmBase):
supported by SAGA, and that raster layers have the same grid extent
"""
extent = None
layers = []
raster_layer_params = []
for param in self.parameterDefinitions():
if param not in parameters or parameters[param.name()] is None:
continue
if isinstance(param, QgsProcessingParameterRasterLayer):
layers.append(parameters[param.name()])
raster_layer_params.append(param.name())
elif (isinstance(param, QgsProcessingParameterMultipleLayers) and
param.layerType() == QgsProcessing.TypeRaster):
if parameters[param.name()]:
layers.extend(parameters[param.name()])
raster_layer_params.extend(param.name())
for layer in layers:
if layer is None or layer == '':
for layer_param in raster_layer_params:
layer = self.parameterAsRasterLayer(parameters, layer_param, context)
if layer is None:
continue
if layer.bandCount() > 1:
return False, self.tr('Input layer {0} has more than one band.\n'