Migrates Channel.GetAllChannelsForExportAfter to sync by default (#11273)

app/export.go

@@ -146,14 +146,12 @@ func (a *App) ExportAllTeams(writer io.Writer) *model.AppError {
 func (a *App) ExportAllChannels(writer io.Writer) *model.AppError {
 	afterId := strings.Repeat("0", 26)
 	for {
-		result := <-a.Srv.Store.Channel().GetAllChannelsForExportAfter(1000, afterId)
+		channels, err := a.Srv.Store.Channel().GetAllChannelsForExportAfter(1000, afterId)
 
-		if result.Err != nil {
+		if err != nil {
-			return result.Err
+			return err
 		}
 
-		channels := result.Data.([]*model.ChannelForExport)
-
 		if len(channels) == 0 {
 			break
 		}

store/sqlstore/channel_store.go

@@ -2465,10 +2465,9 @@ func (s SqlChannelStore) ClearAllCustomRoleAssignments() *model.AppError {
 	return nil
 }
 
-func (s SqlChannelStore) GetAllChannelsForExportAfter(limit int, afterId string) store.StoreChannel {
+func (s SqlChannelStore) GetAllChannelsForExportAfter(limit int, afterId string) ([]*model.ChannelForExport, *model.AppError) {
-	return store.Do(func(result *store.StoreResult) {
+	var channels []*model.ChannelForExport
-		var data []*model.ChannelForExport
+	if _, err := s.GetReplica().Select(&channels, `
-		if _, err := s.GetReplica().Select(&data, `
 		SELECT
 			Channels.*,
 			Teams.Name as TeamName,
@@ -2485,12 +2484,10 @@ func (s SqlChannelStore) GetAllChannelsForExportAfter(limit int, afterId string)
 			Id
 		LIMIT :Limit`,
 		map[string]interface{}{"AfterId": afterId, "Limit": limit}); err != nil {
-			result.Err = model.NewAppError("SqlChannelStore.GetAllChannelsForExportAfter", "store.sql_channel.get_all.app_error", nil, err.Error(), http.StatusInternalServerError)
+		return nil, model.NewAppError("SqlChannelStore.GetAllChannelsForExportAfter", "store.sql_channel.get_all.app_error", nil, err.Error(), http.StatusInternalServerError)
-			return
 	}
 
-		result.Data = data
+	return channels, nil
-	})
 }
 
 func (s SqlChannelStore) GetChannelMembersForExport(userId string, teamId string) ([]*model.ChannelMemberForExport, *model.AppError) {

store/store.go

@@ -194,7 +194,7 @@ type ChannelStore interface {
 	ResetAllChannelSchemes() StoreChannel
 	ClearAllCustomRoleAssignments() *model.AppError
 	MigratePublicChannels() error
-	GetAllChannelsForExportAfter(limit int, afterId string) StoreChannel
+	GetAllChannelsForExportAfter(limit int, afterId string) ([]*model.ChannelForExport, *model.AppError)
 	GetAllDirectChannelsForExportAfter(limit int, afterId string) StoreChannel
 	GetChannelMembersForExport(userId string, teamId string) ([]*model.ChannelMemberForExport, *model.AppError)
 	RemoveAllDeactivatedMembers(channelId string) *model.AppError

store/storetest/channel_store.go

@@ -3290,9 +3290,8 @@ func testChannelStoreGetAllChannelsForExportAfter(t *testing.T, ss store.Store)
 	_, err = ss.Channel().Save(&c1, -1)
 	require.Nil(t, err)
 
-	r1 := <-ss.Channel().GetAllChannelsForExportAfter(10000, strings.Repeat("0", 26))
+	d1, err := ss.Channel().GetAllChannelsForExportAfter(10000, strings.Repeat("0", 26))
-	assert.Nil(t, r1.Err)
+	assert.Nil(t, err)
-	d1 := r1.Data.([]*model.ChannelForExport)
 
 	found := false
 	for _, c := range d1 {

store/storetest/mocks/ChannelStore.go

@@ -263,19 +263,28 @@ func (_m *ChannelStore) GetAllChannels(page int, perPage int, opts store.Channel
 }
 
 // GetAllChannelsForExportAfter provides a mock function with given fields: limit, afterId
-func (_m *ChannelStore) GetAllChannelsForExportAfter(limit int, afterId string) store.StoreChannel {
+func (_m *ChannelStore) GetAllChannelsForExportAfter(limit int, afterId string) ([]*model.ChannelForExport, *model.AppError) {
 	ret := _m.Called(limit, afterId)
 
-	var r0 store.StoreChannel
+	var r0 []*model.ChannelForExport
-	if rf, ok := ret.Get(0).(func(int, string) store.StoreChannel); ok {
+	if rf, ok := ret.Get(0).(func(int, string) []*model.ChannelForExport); ok {
 		r0 = rf(limit, afterId)
 	} else {
 		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(store.StoreChannel)
+			r0 = ret.Get(0).([]*model.ChannelForExport)
 		}
 	}
 
-	return r0
+	var r1 *model.AppError
+	if rf, ok := ret.Get(1).(func(int, string) *model.AppError); ok {
+		r1 = rf(limit, afterId)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).(*model.AppError)
+		}
+	}
+
+	return r0, r1
 }
 
 // GetAllDirectChannelsForExportAfter provides a mock function with given fields: limit, afterId