feat(custom user model, admin)

* The custom user model previously introduced can now be fully edited in the admin of the site.

backend/base_app/admin.py

-from rest_framework.authtoken.admin import TokenAdmin
 from django.contrib import admin
 from django.contrib.auth.admin import UserAdmin
+from django.contrib.auth.forms import UserChangeForm
+from rest_framework.authtoken.admin import TokenAdmin
+
 from .models import User
 
-admin.site.register(User, UserAdmin)
+
+# Handling of the registration of the custom User model to make sure
+# we can see all the fields.
+# taken from: https://stackoverflow.com/a/15013810
+
+
+class CustomUserChangeForm(UserChangeForm):
+    class Meta(UserChangeForm.Meta):
+        model = User
+
+
+class CustomUserAdmin(UserAdmin):
+    form = CustomUserChangeForm
+
+    fieldsets = UserAdmin.fieldsets + (
+        (
+            None,
+            {"fields": ("allow_sharing_personal_info", "secondary_email", "pseudo")},
+        ),
+    )
+
+
+admin.site.register(User, CustomUserAdmin)
 
 # Pour la génération de token dans l'administration du site.
 TokenAdmin.raw_id_fields = ("user",)

backend/base_app/models.py

@@ -18,8 +18,8 @@ def validate(user, allow_sharing_personal_info):
     Custom validation to ensure that moderators, DRI and staff can't be "anonymous" on the plateform
     """
     if (
-            get_user_level(user) >= OBJ_MODERATION_PERMISSIONS["moderator"]
-            and not allow_sharing_personal_info
+        get_user_level(user) >= OBJ_MODERATION_PERMISSIONS["moderator"]
+        and not allow_sharing_personal_info
     ):
         raise ValidationError(
             {