Add display name (first_name) shown instead of username on user-facing UI

photo21/forms.py

@@ -8,6 +8,12 @@ from django.utils.translation import gettext_lazy as _
 
 
 class CustomSignupForm(SignupForm):
+    first_name = forms.CharField(
+        label=_("Display name"),
+        max_length=150,
+        required=True,
+    )
+
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
 
@@ -16,6 +22,12 @@ class CustomSignupForm(SignupForm):
             "Please enter a valid email address ending with `@ens-rennes.fr`"
         )
 
+    def save(self, request):
+        user = super().save(request)
+        user.first_name = self.cleaned_data["first_name"]
+        user.save()
+        return user
+
     def clean_email(self):
         """
         Check that the email address ends with a trusted domain.