allow adding markers and authors to exams in collections

generic/forms.py

@@ -807,3 +807,17 @@ class ExamCollectionCloneForm(ModelForm):
     class Meta:
         model = ExamCollection
         fields = ("name", "date")
+
+from autocomplete import widgets as htmx_widgets, Autocomplete, AutocompleteWidget, ModelAutocomplete, register as autocomplete_register
+
+class UserAutocomplete(ModelAutocomplete):
+    model = User
+    search_attrs = ["first_name", "last_name", "username"]
+
+class UsersAutocompleteForm(Form):
+    users = ModelChoiceField(queryset=User.objects.all(), widget=AutocompleteWidget(
+        ac_class=UserAutocomplete, options={"multiselect": True}
+
+    ))
+
+autocomplete_register(UserAutocomplete)