Fix unsafe parameters[cls.label] with get

qgis2fds_params.py

@@ -104,7 +104,7 @@ def get(cls, algo, parameters, context, feedback, project):
  value = algo.parameterAsExtent(
  parameters, cls.label, context, crs=project.crs()
  ) # in project crs
- project.writeEntry("qgis2fds", cls.label, parameters[cls.label]) # protect
+ project.writeEntry("qgis2fds", cls.label, parameters.get(cls.label)) # protect
  feedback.setProgressText(f"{cls.desc}: <{value}>")
  return value
 
@@ -206,7 +206,7 @@ def get(cls, algo, parameters, context, feedback, project):
  raise QgsProcessingException(
  f"DEM layer CRS <{value.crs().description()}> not valid, cannot proceed."
  )
- project.writeEntry("qgis2fds", cls.label, parameters[cls.label]) # protect
+ project.writeEntry("qgis2fds", cls.label, parameters.get(cls.label)) # protect
  feedback.setProgressText(f"{cls.desc}: <{value}>")
  return value
 
@@ -231,12 +231,8 @@ def set(cls, algo, config, project):
  @classmethod
  def get(cls, algo, parameters, context, feedback, project):
  value = None
- try:
- if parameters[cls.label]:
- value = algo.parameterAsRasterLayer(parameters, cls.label, context)
- except KeyError:
- value = None
- parameters[cls.label] = None
+ if parameters.get(cls.label):
+ value = algo.parameterAsRasterLayer(parameters, cls.label, context)
  if value:
  # Check local
  url = value.source()
@@ -249,7 +245,7 @@ def get(cls, algo, parameters, context, feedback, project):
  raise QgsProcessingException(
  f"Landuse layer CRS <{value.crs().description()}> not valid, cannot proceed."
  )
- project.writeEntry("qgis2fds", cls.label, parameters[cls.label]) # protect
+ project.writeEntry("qgis2fds", cls.label, parameters.get(cls.label)) # protect
  feedback.setProgressText(f"{cls.desc}: <{value}>")
  return value
 
@@ -276,7 +272,7 @@ def set(cls, algo, config, project):
  @classmethod
  def get(cls, algo, parameters, context, feedback, project):
  value = None
- if parameters[cls.label]:
+ if parameters.get(cls.label):
  value = algo.parameterAsFile(parameters, cls.label, context)
  project.writeEntry("qgis2fds", cls.label, value or "") # protect
  if value:
@@ -314,7 +310,7 @@ def set(cls, algo, config, project):
  @classmethod
  def get(cls, algo, parameters, context, feedback, project):
  value = None
- if parameters[cls.label]:
+ if parameters.get(cls.label):
  value = algo.parameterAsFile(parameters, cls.label, context)
  project.writeEntry("qgis2fds", cls.label, value or "") # protect
  if value:
@@ -350,16 +346,13 @@ def set(cls, algo, config, project):
  @classmethod
  def get(cls, algo, parameters, context, feedback, project):
  value = None
- try:
- if parameters[cls.label]:
- value = algo.parameterAsRasterLayer(parameters, cls.label, context)
- except KeyError:
- parameters[cls.label] = None
+ if parameters.get(cls.label):
+ value = algo.parameterAsRasterLayer(parameters, cls.label, context)
  if value and not value.crs().isValid():
  raise QgsProcessingException(
  f"Texture layer CRS <{value.crs().description()}> not valid, cannot proceed."
  )
- project.writeEntry("qgis2fds", cls.label, parameters[cls.label]) # protect
+ project.writeEntry("qgis2fds", cls.label, parameters.get(cls.label)) # protect
  feedback.setProgressText(f"{cls.desc}: <{value}>")
  return value
 
@@ -386,7 +379,7 @@ def set(cls, algo, config, project):
 
  @classmethod
  def get(cls, algo, parameters, context, feedback, project):
- if parameters[cls.label]:
+ if parameters.get(cls.label):
  value = algo.parameterAsDouble(parameters, cls.label, context)
  project.writeEntryDouble("qgis2fds", cls.label, value)
  else: # protect
@@ -446,7 +439,7 @@ def set(cls, algo, config, project):
 
  @classmethod
  def get(cls, algo, parameters, context, feedback, project):
- if parameters[cls.label]:
+ if parameters.get(cls.label):
  value = algo.parameterAsDouble(parameters, cls.label, context)
  project.writeEntryDouble("qgis2fds", cls.label, value)
  else: # protect