Allow users to have complicated username

apps/member/forms.py

@@ -20,6 +20,19 @@ class CustomAuthenticationForm(AuthenticationForm):
     )
 
 
+class UserForm(forms.ModelForm):
+    def _get_validation_exclusions(self):
+        # Django usernames can only contain letters, numbers, @, ., +, - and _.
+        # We want to allow users to have uncommon and unpractical usernames:
+        # That is their problem, and we have normalized aliases for us.
+        return super()._get_validation_exclusions() + ["username"]
+
+    class Meta:
+        model = User
+        fields = ('first_name', 'last_name', 'username', 'email',)
+
+
+
 class ProfileForm(forms.ModelForm):
     """
     A form for the extras field provided by the :model:`member.Profile` model.

apps/member/views.py

@@ -26,7 +26,7 @@ from permission.models import Role
 from permission.views import ProtectQuerysetMixin
 from wei.models import WEIClub
 
-from .forms import ProfileForm, ClubForm, MembershipForm, CustomAuthenticationForm
+from .forms import ProfileForm, ClubForm, MembershipForm, CustomAuthenticationForm, UserForm
 from .models import Club, Membership
 from .tables import ClubTable, UserTable, MembershipTable
 
@@ -47,9 +47,10 @@ class UserUpdateView(ProtectQuerysetMixin, LoginRequiredMixin, UpdateView):
     Update the user information.
     """
     model = User
-    fields = ['first_name', 'last_name', 'username', 'email']
+    form_class = UserForm
     template_name = 'member/profile_update.html'
     context_object_name = 'user_object'
+
     profile_form = ProfileForm
 
     def get_context_data(self, **kwargs):