MM-48181: Invalidate cache to reflect permissions changes from a team scheme. (#21735)

* MM-48181: Bust the allChannelMembersForUserCache when assigning a team scheme.

* MM-48181: Tests cache fix.

store/opentracinglayer/opentracinglayer.go

@@ -696,6 +696,19 @@ func (s *OpenTracingLayerChannelStore) ClearCaches() {
 
 }
 
+func (s *OpenTracingLayerChannelStore) ClearMembersForUserCache() {
+	origCtx := s.Root.Store.Context()
+	span, newCtx := tracing.StartSpanWithParentByContext(s.Root.Store.Context(), "ChannelStore.ClearMembersForUserCache")
+	s.Root.Store.SetContext(newCtx)
+	defer func() {
+		s.Root.Store.SetContext(origCtx)
+	}()
+
+	defer span.Finish()
+	s.ChannelStore.ClearMembersForUserCache()
+
+}
+
 func (s *OpenTracingLayerChannelStore) ClearSidebarOnTeamLeave(userID string, teamID string) error {
 	origCtx := s.Root.Store.Context()
 	span, newCtx := tracing.StartSpanWithParentByContext(s.Root.Store.Context(), "ChannelStore.ClearSidebarOnTeamLeave")

store/retrylayer/retrylayer.go

@@ -750,6 +750,12 @@ func (s *RetryLayerChannelStore) ClearCaches() {
 
 }
 
+func (s *RetryLayerChannelStore) ClearMembersForUserCache() {
+
+	s.ChannelStore.ClearMembersForUserCache()
+
+}
+
 func (s *RetryLayerChannelStore) ClearSidebarOnTeamLeave(userID string, teamID string) error {
 
 	tries := 0

store/sqlstore/channel_store.go

@@ -451,6 +451,10 @@ var channelByNameCache = cache.NewLRU(cache.LRUOptions{
 	Size: model.ChannelCacheSize,
 })
 
+func (s SqlChannelStore) ClearMembersForUserCache() {
+	allChannelMembersForUserCache.Purge()
+}
+
 func (s SqlChannelStore) ClearCaches() {
 	allChannelMembersForUserCache.Purge()
 	allChannelMembersNotifyPropsForChannelCache.Purge()

store/store.go

@@ -267,6 +267,7 @@ type ChannelStore interface {
 	AnalyticsDeletedTypeCount(teamID string, channelType model.ChannelType) (int64, error)
 	GetChannelUnread(channelID, userID string) (*model.ChannelUnread, error)
 	ClearCaches()
+	ClearMembersForUserCache()
 	GetChannelsByScheme(schemeID string, offset int, limit int) (model.ChannelList, error)
 	MigrateChannelMembers(fromChannelID string, fromUserID string) (map[string]string, error)
 	ResetAllChannelSchemes() error

store/storetest/mocks/ChannelStore.go

@@ -150,6 +150,11 @@ func (_m *ChannelStore) ClearCaches() {
 	_m.Called()
 }
 
+// ClearMembersForUserCache provides a mock function with given fields:
+func (_m *ChannelStore) ClearMembersForUserCache() {
+	_m.Called()
+}
+
 // ClearSidebarOnTeamLeave provides a mock function with given fields: userID, teamID
 func (_m *ChannelStore) ClearSidebarOnTeamLeave(userID string, teamID string) error {
 	ret := _m.Called(userID, teamID)

store/timerlayer/timerlayer.go

@@ -669,6 +669,21 @@ func (s *TimerLayerChannelStore) ClearCaches() {
 	}
 }
 
+func (s *TimerLayerChannelStore) ClearMembersForUserCache() {
+	start := time.Now()
+
+	s.ChannelStore.ClearMembersForUserCache()
+
+	elapsed := float64(time.Since(start)) / float64(time.Second)
+	if s.Root.Metrics != nil {
+		success := "false"
+		if true {
+			success = "true"
+		}
+		s.Root.Metrics.ObserveStoreMethodDuration("ChannelStore.ClearMembersForUserCache", success, elapsed)
+	}
+}
+
 func (s *TimerLayerChannelStore) ClearSidebarOnTeamLeave(userID string, teamID string) error {
 	start := time.Now()