MM-45120: Track team join times. Add API to retrieve new team members since a given time. (#20708)

* MM-45120: Starts tracking team join time. Adds API to retrieve team members who joined after a given time.

* MM-45120: Updates json casing to match model.User.

store/storetest/mocks/TeamStore.go

@@ -489,6 +489,36 @@ func (_m *TeamStore) GetMembersByIds(teamID string, userIds []string, restrictio
 	return r0, r1
 }
 
+// GetNewTeamMembersSince provides a mock function with given fields: teamID, since, offset, limit
+func (_m *TeamStore) GetNewTeamMembersSince(teamID string, since int64, offset int, limit int) (*model.NewTeamMembersList, int64, error) {
+	ret := _m.Called(teamID, since, offset, limit)
+
+	var r0 *model.NewTeamMembersList
+	if rf, ok := ret.Get(0).(func(string, int64, int, int) *model.NewTeamMembersList); ok {
+		r0 = rf(teamID, since, offset, limit)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*model.NewTeamMembersList)
+		}
+	}
+
+	var r1 int64
+	if rf, ok := ret.Get(1).(func(string, int64, int, int) int64); ok {
+		r1 = rf(teamID, since, offset, limit)
+	} else {
+		r1 = ret.Get(1).(int64)
+	}
+
+	var r2 error
+	if rf, ok := ret.Get(2).(func(string, int64, int, int) error); ok {
+		r2 = rf(teamID, since, offset, limit)
+	} else {
+		r2 = ret.Error(2)
+	}
+
+	return r0, r1, r2
+}
+
 // GetTeamMembersForExport provides a mock function with given fields: userID
 func (_m *TeamStore) GetTeamMembersForExport(userID string) ([]*model.TeamMemberForExport, error) {
 	ret := _m.Called(userID)

store/storetest/team_store.go

@@ -73,6 +73,7 @@ func TestTeamStore(t *testing.T, ss store.Store) {
 	t.Run("GetTeamMembersForExport", func(t *testing.T) { testTeamStoreGetTeamMembersForExport(t, ss) })
 	t.Run("GetTeamsForUserWithPagination", func(t *testing.T) { testTeamMembersWithPagination(t, ss) })
 	t.Run("GroupSyncedTeamCount", func(t *testing.T) { testGroupSyncedTeamCount(t, ss) })
+	t.Run("GetNewTeamMembersSince", func(t *testing.T) { testGetNewTeamMembersSince(t, ss) })
 }
 
 func testTeamStoreSave(t *testing.T, ss store.Store) {
@@ -3618,3 +3619,17 @@ func testGroupSyncedTeamCount(t *testing.T, ss store.Store) {
 	require.NoError(t, err)
 	require.GreaterOrEqual(t, countAfter, count+1)
 }
+
+func testGetNewTeamMembersSince(t *testing.T, ss store.Store) {
+	team, err := ss.Team().Save(&model.Team{
+		DisplayName:      NewTestId(),
+		Name:             NewTestId(),
+		Email:            MakeEmail(),
+		Type:             model.TeamInvite,
+		GroupConstrained: model.NewBool(true),
+	})
+	require.NoError(t, err)
+
+	_, _, err = ss.Team().GetNewTeamMembersSince(team.Id, 0, 0, 1000)
+	require.NoError(t, err)
+}