QoL Added a Button to fill empty cells in a table with n/a

BIDSHandler/CreationTool/FormHandler.py

@@ -117,7 +117,7 @@ class Form:
         self.current_row += 10
         help_label = tk.Label(self.frame, image=self.help_icon)
         help_label.grid(row=self.current_row, column=3)
-        create_tool_tip(help_label, self.form[0]["description"])
+        create_tool_tip(help_label, self.form[1]["description"])
         self.entries.append(text_entry)
 
     def is_valid_mandatory(self):
@@ -250,11 +250,14 @@ class Form:
         self.validation_label.grid(row=self.current_row + 1, column=4)
         create_tool_tip(self.validation_label, 'Every required field must be filled to validate the form.\n'
                                              'The row must be filled entirely in each named column.\n'
-                                             'If an information is missing, fill the cell with N/A.')
+                                             'If an information is missing, fill the cell with n/a.')
 
         # Display the recommendation as text at the right of the table.
         recommendation_frame = tk.Frame(self.frame)
         recommendation_frame.grid(row=0, column=6, rowspan=10)
+        null_to_na_button = tk.Button(recommendation_frame, text='Replace empty cells by n/a', command=self.null_to_na_tsv)
+        null_to_na_button.pack()
+
         recommendation_label = tk.Label(recommendation_frame, text='Recommendation:', font=('Arial', 12, 'bold'))
         recommendation_label.pack()
         recommendation_text = tk.Text(recommendation_frame, height=10, width=50)
@@ -266,6 +269,20 @@ class Form:
                                        self.name_style[self.form[1][column]['requirement level']])
         recommendation_text.config(state=tk.DISABLED)
 
+    def null_to_na_tsv(self):
+        """This method is used to replace the empty cells or '' cells of the table by 'n/a'.
+
+        Only the empty cells in a row where at least one cell is filled will be replaced.
+        """
+        is_null_df = self.table.model.df.isnull()
+        for i in range(len(self.table.model.df)):
+            if not is_null_df.iloc[i].all():
+                for j in range(len(self.table.model.df.columns)):
+                    if is_null_df.iloc[i][j] or self.table.model.df.iloc[i, j] == '':
+                        self.table.model.df.iloc[i, j] = 'n/a'
+        self.table.redraw()
+
+
     def save_form_tsv(self, path):
         """This method is used to save the form in a tsv file.