Merge pull request 'ask for a destination if instantiated without a filename' (#15) from ask-for-destination into master

edit_data_form.py

@@ -4,7 +4,7 @@
 import npyscreen
 import json
 import datetime
-from sys import argv
+import sys
 import pathlib
 
 from base_data_model import base_data_model
@@ -15,7 +15,7 @@ from membership_data_model import membership_data_model
 class FormApp(npyscreen.NPSAppManaged):
     def __init__(self, filename):
         super().__init__()
-
+        self.is_new_member = self.is_default_file(filename)
         self.dir_path = pathlib.Path(filename).absolute().parent
         self.member = json.load(open(filename, 'r'))
 
@@ -47,23 +47,32 @@ class FormApp(npyscreen.NPSAppManaged):
         name = self.base_data.get_form_values_dict()['fullname']
         date = datetime.datetime.now().replace(microsecond=0).isoformat()
         fn = '{}_{}.json'.format('_'.join(name.lower().split()), date.replace(':',''))
+        if self.is_new_member:
+            print('Enter destination directory for new Member data:')
+            self.dir_path = input()
         file_path = pathlib.Path(self.dir_path, fn)
         return file_path
 
+    def is_default_file(self, filename):
+        return pathlib.Path(filename).name == 'example.json'
+
 
 def main(*_args):
-    if len(argv) > 1:
-        filename = argv[1]
+    if len(sys.argv) > 1:
+        file_path = pathlib.Path(sys.argv[1])
+        if not file_path.exists():
+            print("Trying to open nonexistent file. Aborting.")
+            sys.exit(0)
     else:
-        filename = pathlib.Path(pathlib.Path(__file__).absolute().parent, 'example.json')
+        file_path = pathlib.Path(pathlib.Path(__file__).absolute().parent, 'example.json')
 
-    app = FormApp(filename)
+    app = FormApp(file_path)
 
     try:
         app.run()
     except Exception as e:
         print(e)
-        return 0    
+        sys.exit(0)
     
     if app.data_has_changed():
         out_data = app.get_data_from_form()