UPD: added app to submit participant registrations.

dav_registration/forms.py

@@ -0,0 +1,43 @@
+# -*- coding: utf-8 -*-
+import logging
+from django import forms
+from django.utils.translation import ugettext, ugettext_lazy as _
+
+from .models import Registration
+
+logger = logging.getLogger(__name__)
+
+
+class RegistrationForm(forms.ModelForm):
+    class Meta:
+        model = Registration
+        exclude = ['event', 'created_at', 'privacy_policy', 'purge_at']
+        widgets = {
+            'emergency_contact': forms.Textarea(attrs={'rows': 4}),
+            'experience': forms.Textarea(attrs={'rows': 5}),
+            'note': forms.Textarea(attrs={'rows': 5}),
+        }
+
+    def clean_experience(self):
+        val = self.cleaned_data.get('experience')
+        if val == '':
+            need_experience = True
+            if self.instance.event.sport == 'W':
+                need_experience = False
+            if need_experience:
+                raise forms.ValidationError(
+                    ugettext(u'Die Tourenleiter*innen brauchen ein paar Angaben,'
+                             u' was du bereits kannst oder wie fit du bist.'),
+                    code='need_experience',
+                )
+        return val
+
+    def clean_privacy_policy_accepted(self):
+        val = self.cleaned_data.get('privacy_policy_accepted')
+        if not val and self.instance.privacy_policy:
+            raise forms.ValidationError(
+                ugettext(u'Wir müssen deine Daten leider speichern können,'
+                         u' damit wir wissen, dass du dich angemeldet hast.'),
+                code='privacy_policy_not_accepted',
+            )
+        return val