Finish the add_condition function

[sputnik2481]

This is the code

 try:
            index = self.listWidget_condition_to_add.count()

            string_to_add =""
            for i in range(index):
                string_to_add += " "+ self.listWidget_condition_to_add.item(i).text()

                op = QTreeWidgetItem()
                self.treeWidget.currentItem().addChild(op)
                op.setText(0, string_to_add)

            self.listWidget_condition_to_add.clear()
        except:
            print("ERROR: Cannot Add Condition, parent missing.")
            print("POSSIBLE SOLUTION: Do you have a logical operator selected in main screen?")