Store group sets on their own table alongside Grouping.extra

Duplicate the information for now until we are ready to move the group
set reads to the new table.

lms/services/group_set.py

@@ -1,5 +1,7 @@
 from typing import TypedDict
 
+from lms.models.group_set import LMSGroupSet
+
 
 class GroupSetDict(TypedDict):
     """
@@ -13,6 +15,9 @@ class GroupSetDict(TypedDict):
 
 
 class GroupSetService:
+    def __init__(self, db):
+        self._db = db
+
     def store_group_sets(self, course, group_sets: list[dict]):
         """
         Store this course's available group sets.
@@ -25,10 +30,15 @@ def store_group_sets(self, course, group_sets: list[dict]):
         group_sets = [{"id": str(g["id"]), "name": g["name"]} for g in group_sets]
         course.extra["group_sets"] = group_sets
 
-    def get_group_sets(self, course) -> list[GroupSetDict]:
-        """Get this course's available group sets."""
-        return course.extra.get("group_sets", [])
+        for group_set in group_sets:
+            self._db.add(
+                LMSGroupSet(
+                    lms_id=group_set["id"],
+                    name=group_set["name"],
+                    lms_course=course.lms_course,
+                )
+            )
 
 
-def factory(_context, _request):
-    return GroupSetService()
+def factory(_context, request):
+    return GroupSetService(db=request.db)

tests/unit/lms/models/group_set_test.py

@@ -26,26 +26,16 @@ def test_set_group_sets(self, group_set, expected, svc):
 
         assert course.extra["group_sets"] == [expected]
 
-    def test_get_group_sets(self, svc):
-        course = factories.Course(extra={"group_sets": sentinel.group_sets})
-
-        assert svc.get_group_sets(course) == sentinel.group_sets
-
-    def test_get_group_set_empty(self, svc):
-        course = factories.Course(extra={})
-
-        assert not svc.get_group_sets(course)
-
     @pytest.fixture
-    def svc(self):
-        return GroupSetService()
+    def svc(self, db_session):
+        return GroupSetService(db=db_session)
 
 
 class TestFactory:
-    def test_it(self, pyramid_request, GroupSetService):
+    def test_it(self, pyramid_request, GroupSetService, db_session):
         service = factory(sentinel.context, pyramid_request)
 
-        GroupSetService.assert_called_once_with()
+        GroupSetService.assert_called_once_with(db=db_session)
         assert service == GroupSetService.return_value
 
     @pytest.fixture