Improve ledger.py.

diff --git a/ledger.py b/ledger.py
index 0dbc9fe4debe3c133a766d039394d1828a88a600..276b1cc87a07d5dd4b30323871736886405e217c 100755 (executable)
--- a/ledger.py
+++ b/ledger.py
@@ -282,7 +282,10 @@ class MyServer(BaseHTTPRequestHandler):
                 new_main = f'{account} {amount} {currency}'
                 if '' == new_main.rstrip() == comment.rstrip():  # don't write empty lines
                     continue
-                lines += [f'{new_main} ; {comment}'] 
+                new_line = new_main
+                if comment.rstrip() != '':
+                    new_line += f' ; {comment}'
+                lines += [new_line] 
         elif '/add_free' == parsed_url.path:
             lines = postvars['booking'][0].splitlines()
         start = int(postvars['start'][0])
@@ -391,7 +394,7 @@ class MyServer(BaseHTTPRequestHandler):
         lines = []
         line_sep = '<br />'
         for comment in db.comments:
-            line = f'; {comment}' if comment != '' else ''
+            line = f' ; {comment}' if comment != '' else ''
             lines += [line + line_sep]
         for booking in db.bookings:
             i = booking.start_line
@@ -434,26 +437,27 @@ edit:
         input_lines = ''
         last_line = 0
         def inpu(name, val=""):
+            val = val if val is not None else "" 
             safe_val = html.escape(str(val))
             return f'<input name="{name}" value="{safe_val}" />'
         if len(bookings) == 0:
             today = str(datetime.datetime.now())[:10]
-            input_lines += f'{inpu("date", today)} {inpu("description")} ; {inpu("comment")}<br />' 
+            input_lines += f'{inpu("date", today)} {inpu("description")} ; {inpu("line_0_comment")}<br />' 
             last_line = 1 
         else:
             booking = bookings[0]
             last_line = len(comments) 
-            input_lines += f'{inpu("date", booking.date_string)} {inpu("description", booking.description)} ; {inpu("comment", comments[0])}<br />' 
+            input_lines += f'{inpu("date", booking.date_string)} {inpu("description", booking.description)} ; {inpu("line_0_comment", comments[0])}<br />' 
             for i in range(1, len(comments)):
                 account = amount = currency = ''
                 if i < len(booking.lines) and booking.lines[i] != '':
                     account = booking.lines[i][0]
                     amount = booking.lines[i][1]
                     currency = booking.lines[i][2]
-                input_lines += f'{inpu("line_{i}_account", account)} {inpu("line_{i}_amount", amount)} {inpu("line_{i}_currency", currency)} ; {inpu("line_{i}_comment", comments[i])}<br />' 
+                input_lines += f'{inpu(f"line_{i}_account", account)} {inpu(f"line_{i}_amount", amount)} {inpu(f"line_{i}_currency", currency)} ; {inpu(f"line_{i}_comment", comments[i])}<br />' 
         for j in range(bonus_lines):
             i = j + last_line 
-            input_lines += f'{inpu("line_{i}_account")} {inpu("line_{i}_amount")} {inpu("line_{i}_currency")} ; {inpu("line_{i}_comment")}<br />'
+            input_lines += f'{inpu(f"line_{i}_account")} {inpu(f"line_{i}_amount")} {inpu(f"line_{i}_currency")} ; {inpu(f"line_{i}_comment")}<br />'
         return f'{self.header_add_form("add_structured")}{input_lines}{self.footer_add_form(start, end)}'