fix: handle when end-user cancel save action (#167)

fix: handle when end-user cancel save action

dicogis/DicoGIS.py

@@ -30,6 +30,7 @@
 # GUI
 from tkinter import ACTIVE, DISABLED, END, NORMAL, Image, StringVar, Tk
 from tkinter.messagebox import showerror as avert
+from tkinter.messagebox import showinfo
 from tkinter.ttk import (
     Button,
     Combobox,
@@ -1101,9 +1102,19 @@ def process_files(self):
         logger.info("Workbook saved: %s", self.ent_outxl_filename.get())
 
         # quit and exit
-        utils_global.open_dir_file(saved[1])
-        self.destroy()
-        exit()
+        if saved is not None:
+            utils_global.open_dir_file(saved[1])
+            self.destroy()
+            exit()
+        else:
+            showinfo(
+                title=self.blabla.get(
+                    "no_output_file_selected", "No output file selected"
+                ),
+                message=self.blabla.get(
+                    "no_output_file_selected", "Dictionary has not been saved."
+                ),
+            )
 
     def process_db(self, sgbd_reader):
         """Process PostGIS DB analisis."""

dicogis/utils/utils.py

@@ -17,6 +17,7 @@
 import logging
 import subprocess
 from os import R_OK, access, path
+from pathlib import Path
 from sys import exit
 from sys import platform as opersys
 from tkinter import ACTIVE, DISABLED
@@ -98,6 +99,10 @@ def safe_save(
             title=dlg_title,
         )
 
+        if not isinstance(out_name, (str, Path)) and len(str(out_name)):
+            logger.warning(f"No output file selected: {out_name}")
+            return None
+
         # check if the extension is correctly indicated
         if path.splitext(out_name)[1] != ".xlsx":
             out_name = out_name + ".xlsx"