split form processing in multiple methods

input/views.py

@@ -210,15 +210,28 @@ class ApplicationView(FormView):
         - Return the "done" response.
         """
 
+        data = self.prepare_data(form)
+        obj = self.save_obj(form, data)
+
+        if response := self.send_mail(obj, data):
+            return response
+
+        return done(self.request)
+
+    def prepare_data(self, form):
         # Collect cleaned data and mark the current type
-        data = form.cleaned_data.copy()
-        data['choice'] = self.type_code
+
+        data = {**form.cleaned_data, 'choice': self.type_code}
 
         # Special rule for literature applications
         if self.type_code == TYPE_LIT and data.get('selfbuy') == 'TRUE':
             data['selfbuy_give_data'] = 'False'
 
+        return data
+
+    def save_obj(self, form, data):
         # Save model instance
+
         modell = form.save(commit=False)
 
         # Username from session if present
@@ -228,6 +241,7 @@ class ApplicationView(FormView):
         # Copy common fields if provided by the form
         if 'realname' in data:
             modell.realname = data['realname']
+
         if 'email' in data:
             modell.email = data['email']
 
@@ -240,11 +254,16 @@ class ApplicationView(FormView):
             modell.selfbuy_give_data = data['selfbuy_give_data']
 
         modell.save()
+
         if hasattr(form, 'save_m2m'):
             form.save_m2m()
 
+        return modell
+
+    def send_mail(self, obj, data):
         # Prepare minimal mail context and send mails
-        data['pk'] = modell.pk
+
+        data['pk'] = obj.pk
         data['url_prefix'] = settings.EMAIL_URL_PREFIX
         data['type_label'] = self.type_info.label
         context = {'data': data}
@@ -260,22 +279,14 @@ class ApplicationView(FormView):
             applicant_files = collect_attachment_paths(kind='applicant', choice=self.type_code)
             attach_files(msg1, applicant_files)
             msg1.send()
-            type_label_html = TYPE_CHOICES.get(self.type_code, self.type_code)
-            type_label = strip_tags(str(type_label_html))
+            type_label_html = self.type_info.label
+            type_label_plain = strip_tags(type_label_html)
             # Mail to IF
             txt2 = get_template('input/if_mail.txt').render(context)
             html2 = get_template('input/if_mail.html').render(context)
-            applicant_name = (
-                    getattr(modell, 'username', None)
-                    or data.get('username')
-                    or getattr(modell, 'realname', None)
-                    or data.get('realname')
-                    or getattr(modell, 'email', None)
-                    or data.get('email')
-                    or 'Unbekannt'
-            )
+            applicant_name = self.get_recipient_name(obj, data)
             msg2 = EmailMultiAlternatives(
-                f'Anfrage {type_label} von {applicant_name}', txt2, settings.IF_EMAIL, [settings.IF_EMAIL]
+                f'Anfrage {type_label_plain} von {applicant_name}', txt2, settings.IF_EMAIL, [settings.IF_EMAIL]
             )
             msg2.attach_alternative(html2, 'text/html')
             staff_files = collect_attachment_paths(kind='staff', choice=self.type_code)
@@ -283,10 +294,16 @@ class ApplicationView(FormView):
             msg2.send()
 
         except BadHeaderError:
-            modell.delete()
+            obj.delete()
             return HttpResponse('Invalid header found. Data not saved!')
         except SMTPException:
-            modell.delete()
+            obj.delete()
             return HttpResponse('Error in sending mails (probably wrong adress?). Data not saved!')
 
-        return done(self.request)
+    @staticmethod
+    def get_recipient_name(obj, data):
+        for field in 'username', 'realname', 'email':
+            if name := getattr(obj, field, None) or data.get(field):
+                return name
+
+        return 'Unbekannt'