length must be positive

CHANGELOG

@@ -60,6 +60,8 @@ smasch (1.1.0~alpha.0-1) unstable; urgency=low
     (#458)
   * bug fix: validation for some configuration items did not exist (#456)
   * bug fix: prevent fetching favicon - we don't have it (#304)
+  * bug fix: when adding/editing appointment length must be a positive value
+    (#464, 462)
 
 
  -- Piotr Gawron <piotr.gawron@uni.lu>  Thu, 25 Feb 2021 17:00:00 +0200

smash/web/forms/appointment_form.py

@@ -25,8 +25,7 @@ class AppointmentForm(ModelForm):
     datetime_when = forms.DateTimeField(label='Appointment on',
                                         widget=forms.DateTimeInput(DATETIMEPICKER_DATE_ATTRS)
                                         )
-    length = forms.IntegerField(label='Appointment length (in minutes)',
-                                min_value=0)
+    length = forms.IntegerField(label='Appointment length (in minutes)', min_value=1)
     user: Worker
 
     def __init__(self, *args, **kwargs):
@@ -187,7 +186,6 @@ class AppointmentAddForm(AppointmentForm):
         fields['worker_assigned'].widget.attrs = {'class': 'search_worker_availability'}
         fields['datetime_when'].widget.attrs = {'class': 'start_date', 'placeholder': 'yyyy-mm-dd HH:MM',
                                                 'pattern': '[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}'}
-        fields['length'].widget.attrs = {'class': 'appointment_duration'}
 
         self.fields = fields
         self.fields['location'].queryset = self.user.locations