all pit stops can now be edited and deleted

not only the last pit stop can be edited and deleted.

app/routes/pitstop.py

@@ -135,7 +135,13 @@ def edit_pit_stop_form(pid):
 
     form = EditPitstopForm()
     form.set_pitstop(last_pitstop)
-
+    data = get_event_line_for_vehicle(vehicle)
+    form.set_pitstops(data)
+    if not form.is_submitted():
+        form.odometer.default = edit_pitstop.odometer
+        form.litres.default = edit_pitstop.amount
+        form.date.default = edit_pitstop.date
+        form.costs.default = edit_pitstop.costs
     if form.validate_on_submit():
         edit_pitstop.costs = form.costs.data
         edit_pitstop.date = form.date.data
@@ -145,18 +151,9 @@ def edit_pit_stop_form(pid):
         db_log_update(edit_pitstop)
         return redirect(url_for('get_pit_stops', _anchor='v' + str(vehicle.id)))
 
-    form.odometer.default = edit_pitstop.odometer
-    form.litres.default = edit_pitstop.amount
-    form.date.default = edit_pitstop.date
-    form.costs.default = edit_pitstop.costs
+    form.preinit_with_data()
     form.process()
-    messages = {
-        'date': 'Date must be between %s and %s (including).' % (str(last_pitstop.date), str(date.today())),
-        'odometer': 'Odometer must be greater than %s km.' % (str(last_pitstop.odometer))
-    }
-    if edit_pitstop.costs is not None and edit_pitstop.costs > 0:
-        messages['costs'] = 'Costs must be higher than 0.01 €.'
-    return render_template('editPitStopForm.html', form=form, vehicle=vehicle, messages=messages)
+    return render_template('editPitStopForm.html', form=form, vehicle=vehicle, messages=form.get_hint_messages())
 
 
 @app.route('/pitstops', methods=['GET'])