def getValue(self): value = self.leText.text() for param in self.modelParametersDialog.model.parameterDefinitions(): if isinstance(param, QgsProcessingParameterNumber): if "@" + param.name() == value.strip(): return QgsProcessingModelChildParameterSource.fromModelParameter(param.name()) for alg in list(self.modelParametersDialog.model.childAlgorithms().values()): for out in alg.algorithm().outputDefinitions(): if isinstance(out, QgsProcessingOutputNumber) and "@%s_%s" % (alg.childId(), out.name()) == value.strip(): return QgsProcessingModelChildParameterSource.fromChildOutput(alg.childId(), out.outputName()) try: return float(value.strip()) except: return QgsProcessingModelChildParameterSource.fromExpression(self.leText.text())
def _expressionValues(self, text): strings = self.dialog.getAvailableValuesOfType( [QgsProcessingParameterString, QgsProcessingParameterNumber], []) model_params = [(self.dialog.resolveValueDescription(s), s) for s in strings] variables = QgsExpression.referencedVariables(text) # replace description by parameter's name (diverging after model save) descriptions = QgsExpression.referencedVariables(text) for k, v in model_params: if k in descriptions: text = text.replace('[% @{} %]'.format(k), '[% @{} %]'.format(v.parameterName())) src = QgsProcessingModelChildParameterSource.fromExpressionText(text) # add parameters currently used by the expression expression_values = [] expression_values.append(src) for k, v in model_params: if k in variables: expression_values.append(v) return expression_values
def createAlgorithm(self): alg = QgsProcessingModelChildAlgorithm(self._alg.id()) if not self.childId: alg.generateChildId(self.model) else: alg.setChildId(self.childId) alg.setDescription(self.descriptionBox.text()) for param in self._alg.parameterDefinitions(): if param.isDestination() or param.flags() & QgsProcessingParameterDefinition.FlagHidden: continue try: val = self.wrappers[param.name()].value() except InvalidParameterValue: self.bar.pushMessage(self.tr("Error"), self.tr("Wrong or missing value for parameter '{}'").format(param.description()), level=Qgis.Warning) return None if isinstance(val, QgsProcessingModelChildParameterSource): val = [val] elif not (isinstance(val, list) and all( [isinstance(subval, QgsProcessingModelChildParameterSource) for subval in val])): val = [QgsProcessingModelChildParameterSource.fromStaticValue(val)] for subval in val: if (isinstance(subval, QgsProcessingModelChildParameterSource) and subval.source() == QgsProcessingModelChildParameterSource.StaticValue and not param.checkValueIsAcceptable(subval.staticValue())) \ or (subval is None and not param.flags() & QgsProcessingParameterDefinition.FlagOptional): self.bar.pushMessage(self.tr("Error"), self.tr("Wrong or missing value for parameter '{}'").format( param.description()), level=Qgis.Warning) return None alg.addParameterSources(param.name(), val) outputs = {} for dest in self._alg.destinationParameterDefinitions(): if not dest.flags() & QgsProcessingParameterDefinition.FlagHidden: name = str(self.valueItems[dest.name()].text()) if name.strip() != '' and name != ModelerParametersDialog.ENTER_NAME: output = QgsProcessingModelOutput(name, name) output.setChildId(alg.childId()) output.setChildOutputName(dest.name()) outputs[name] = output alg.setModelOutputs(outputs) selectedOptions = self.dependenciesPanel.selectedoptions availableDependencies = self.getAvailableDependencies() # spellok dep_ids = [] for selected in selectedOptions: dep_ids.append(availableDependencies[selected].childId()) # spellok alg.setDependencies(dep_ids) #try: # self._alg.processBeforeAddingToModeler(alg, self.model) #except: # pass return alg
def _expressionValues(self, text): strings = self.dialog.getAvailableValuesOfType( [QgsProcessingParameterString, QgsProcessingParameterNumber], []) model_params = [(self.dialog.resolveValueDescription(s), s) for s in strings] variables = QgsExpression.referencedVariables(text) expression_values = [] expression_values.append(QgsProcessingModelChildParameterSource.fromExpressionText(text)) for k, v in model_params: if k in variables: expression_values.append(v) return expression_values
def setPreviousValues(self): if self.childId is not None: alg = self.model.childAlgorithm(self.childId) self.descriptionBox.setText(alg.description()) for param in alg.algorithm().parameterDefinitions(): if param.isDestination() or param.flags() & QgsProcessingParameterDefinition.FlagHidden: continue value = None if param.name() in alg.parameterSources(): value = alg.parameterSources()[param.name()] if isinstance(value, list) and len(value) == 1: value = value[0] elif isinstance(value, list) and len(value) == 0: value = None wrapper = self.wrappers[param.name()] if issubclass(wrapper.__class__, QgsProcessingModelerParameterWidget): if value is None: value = QgsProcessingModelChildParameterSource.fromStaticValue(param.defaultValue()) wrapper.setWidgetValue(value) else: if value is None: value = param.defaultValue() if isinstance(value, QgsProcessingModelChildParameterSource) and value.source() == QgsProcessingModelChildParameterSource.StaticValue: value = value.staticValue() wrapper.setValue(value) for name, out in alg.modelOutputs().items(): if out.childOutputName() in self.valueItems: self.valueItems[out.childOutputName()].setText(out.name()) selected = [] dependencies = self.getAvailableDependencies() # spellok for idx, dependency in enumerate(dependencies): if dependency.childId() in alg.dependencies(): selected.append(idx) self.dependenciesPanel.setSelectedItems(selected)
def createAlgorithm(self): alg = QgsProcessingModelChildAlgorithm(self._alg.id()) if not self.childId: alg.generateChildId(self.model) else: alg.setChildId(self.childId) alg.setDescription(self.descriptionBox.text()) if self.algorithmItem: alg.setConfiguration(self.algorithmItem.configuration()) self._alg = alg.algorithm().create( self.algorithmItem.configuration()) for param in self._alg.parameterDefinitions(): if param.isDestination( ) or param.flags() & QgsProcessingParameterDefinition.FlagHidden: continue try: wrapper = self.wrappers[param.name()] if issubclass(wrapper.__class__, WidgetWrapper): val = wrapper.value() elif issubclass(wrapper.__class__, QgsProcessingModelerParameterWidget): val = wrapper.value() else: val = wrapper.parameterValue() except InvalidParameterValue: self.bar.pushMessage( self.tr("Error"), self.tr( "Wrong or missing value for parameter '{}'").format( param.description()), level=Qgis.Warning) return None if isinstance(val, QgsProcessingModelChildParameterSource): val = [val] elif not (isinstance(val, list) and all([ isinstance(subval, QgsProcessingModelChildParameterSource) for subval in val ])): val = [ QgsProcessingModelChildParameterSource.fromStaticValue(val) ] for subval in val: if (isinstance(subval, QgsProcessingModelChildParameterSource) and subval.source() == QgsProcessingModelChildParameterSource.StaticValue and not param.checkValueIsAcceptable(subval.staticValue())) \ or (subval is None and not param.flags() & QgsProcessingParameterDefinition.FlagOptional): self.bar.pushMessage( self.tr("Error"), self.tr("Wrong or missing value for parameter '{}'" ).format(param.description()), level=Qgis.Warning) return None alg.addParameterSources(param.name(), val) outputs = {} for dest in self._alg.destinationParameterDefinitions(): if not dest.flags() & QgsProcessingParameterDefinition.FlagHidden: name = self.valueItems[dest.name()].text() if name.strip() != '': output = QgsProcessingModelOutput(name, name) output.setChildId(alg.childId()) output.setChildOutputName(dest.name()) outputs[name] = output if dest.flags( ) & QgsProcessingParameterDefinition.FlagIsModelOutput: if dest.name() not in outputs: output = QgsProcessingModelOutput(dest.name(), dest.name()) output.setChildId(alg.childId()) output.setChildOutputName(dest.name()) outputs[dest.name()] = output alg.setModelOutputs(outputs) selectedOptions = self.dependenciesPanel.selectedoptions availableDependencies = self.getAvailableDependencies() # spellok dep_ids = [] for selected in selectedOptions: dep_ids.append( availableDependencies[selected].childId()) # spellok alg.setDependencies(dep_ids) #try: # self._alg.processBeforeAddingToModeler(alg, self.model) #except: # pass return alg