Grants: Add action to mark grants as rejected and send email

backend/grants/admin.py

@@ -346,6 +346,24 @@ def create_grant_vouchers_on_pretix(modeladmin, request, queryset):
     messages.success(request, f"{count} Vouchers created on Pretix!")
 
 
+@admin.action(description="Mark grants as Rejected and send email")
+@validate_single_conference_selection
+def mark_rejected_and_send_email(modeladmin, request, queryset):
+    queryset = queryset.filter(
+        status__in=(
+            Grant.Status.waiting_list,
+            Grant.Status.waiting_list_maybe,
+        ),
+    )
+
+    for grant in queryset:
+        grant.status = Grant.Status.rejected
+        grant.save()
+
+        send_grant_reply_rejected_email.delay(grant_id=grant.id)
+        messages.info(request, f"Sent Rejected reply email to {grant.name}")
+
+
 class GrantAdminForm(forms.ModelForm):
     class Meta:
         model = Grant
@@ -468,6 +486,7 @@ class GrantAdmin(ExportMixin, ConferencePermissionMixin, admin.ModelAdmin):
         send_reply_email_waiting_list_update,
         create_grant_vouchers_on_pretix,
         send_voucher_via_email,
+        mark_rejected_and_send_email,
         "delete_selected",
     ]
     autocomplete_fields = ("user",)
@@ -533,9 +552,7 @@ class GrantAdmin(ExportMixin, ConferencePermissionMixin, admin.ModelAdmin):
         ),
     )
 
-    @admin.display(
-        description="User",
-    )
+    @admin.display(description="User", ordering="user__full_name")
     def user_display_name(self, obj):
         if obj.user_id:
             return obj.user.display_name

backend/grants/tests/test_admin.py

@@ -9,6 +9,7 @@
     create_grant_vouchers_on_pretix,
     send_reply_emails,
     send_voucher_via_email,
+    mark_rejected_and_send_email,
 )
 from grants.models import Grant
 
@@ -503,3 +504,32 @@ def test_create_grant_vouchers_only_for_confirmed_grants(
     assert grant_1.voucher_code is None
     assert grant_2.pretix_voucher_id == 1
     assert grant_2.voucher_code == "GRANT-123ZYZ"
+
+
+def test_mark_rejected_and_send_email(rf, conference, grant_factory, mocker):
+    mock_messages = mocker.patch("grants.admin.messages")
+    grant1 = grant_factory(status=Grant.Status.waiting_list, conference=conference)
+    grant2 = grant_factory(
+        status=Grant.Status.waiting_list_maybe, conference=conference
+    )
+    request = rf.get("/")
+    mock_send_rejected_email = mocker.patch(
+        "grants.admin.send_grant_reply_rejected_email.delay"
+    )
+
+    mark_rejected_and_send_email(None, request=request, queryset=Grant.objects.all())
+
+    grant1.refresh_from_db()
+    grant2.refresh_from_db()
+    assert grant1.status == Grant.Status.rejected
+    assert grant2.status == Grant.Status.rejected
+    mock_messages.info.assert_has_calls(
+        [
+            call(request, f"Sent Rejected reply email to {grant1.name}"),
+            call(request, f"Sent Rejected reply email to {grant2.name}"),
+        ],
+        any_order=True,
+    )
+    mock_send_rejected_email.assert_has_calls(
+        [call(grant_id=grant1.id), call(grant_id=grant2.id)], any_order=True
+    )