Migrate Jobs store to sync by default (#11183)

* Migrate Jobs store to sync by default

* Fixing compilation

* Fixing compilation

* Fixing govet

api4/job_test.go

@@ -8,7 +8,7 @@ import (
 	"testing"
 
 	"github.com/mattermost/mattermost-server/model"
-	"github.com/mattermost/mattermost-server/store"
+	"github.com/stretchr/testify/require"
 )
 
 func TestCreateJob(t *testing.T) {
@@ -46,9 +46,8 @@ func TestGetJob(t *testing.T) {
 		Id:     model.NewId(),
 		Status: model.JOB_STATUS_PENDING,
 	}
-	if result := <-th.App.Srv.Store.Job().Save(job); result.Err != nil {
-		t.Fatal(result.Err)
-	}
+	_, err := th.App.Srv.Store.Job().Save(job)
+	require.Nil(t, err)
 
 	defer th.App.Srv.Store.Job().Delete(job.Id)
 
@@ -95,7 +94,8 @@ func TestGetJobs(t *testing.T) {
 	}
 
 	for _, job := range jobs {
-		store.Must(th.App.Srv.Store.Job().Save(job))
+		_, err := th.App.Srv.Store.Job().Save(job)
+		require.Nil(t, err)
 		defer th.App.Srv.Store.Job().Delete(job.Id)
 	}
 
@@ -151,7 +151,8 @@ func TestGetJobsByType(t *testing.T) {
 	}
 
 	for _, job := range jobs {
-		store.Must(th.App.Srv.Store.Job().Save(job))
+		_, err := th.App.Srv.Store.Job().Save(job)
+		require.Nil(t, err)
 		defer th.App.Srv.Store.Job().Delete(job.Id)
 	}
 
@@ -208,7 +209,8 @@ func TestCancelJob(t *testing.T) {
 	}
 
 	for _, job := range jobs {
-		store.Must(th.App.Srv.Store.Job().Save(job))
+		_, err := th.App.Srv.Store.Job().Save(job)
+		require.Nil(t, err)
 		defer th.App.Srv.Store.Job().Delete(job.Id)
 	}
 

app/job.go

@@ -8,11 +8,7 @@ import (
 )
 
 func (a *App) GetJob(id string) (*model.Job, *model.AppError) {
-	result := <-a.Srv.Store.Job().Get(id)
-	if result.Err != nil {
-		return nil, result.Err
-	}
-	return result.Data.(*model.Job), nil
+	return a.Srv.Store.Job().Get(id)
 }
 
 func (a *App) GetJobsPage(page int, perPage int) ([]*model.Job, *model.AppError) {
@@ -20,11 +16,7 @@ func (a *App) GetJobsPage(page int, perPage int) ([]*model.Job, *model.AppError)
 }
 
 func (a *App) GetJobs(offset int, limit int) ([]*model.Job, *model.AppError) {
-	result := <-a.Srv.Store.Job().GetAllPage(offset, limit)
-	if result.Err != nil {
-		return nil, result.Err
-	}
-	return result.Data.([]*model.Job), nil
+	return a.Srv.Store.Job().GetAllPage(offset, limit)
 }
 
 func (a *App) GetJobsByTypePage(jobType string, page int, perPage int) ([]*model.Job, *model.AppError) {
@@ -32,11 +24,7 @@ func (a *App) GetJobsByTypePage(jobType string, page int, perPage int) ([]*model
 }
 
 func (a *App) GetJobsByType(jobType string, offset int, limit int) ([]*model.Job, *model.AppError) {
-	result := <-a.Srv.Store.Job().GetAllByTypePage(jobType, offset, limit)
-	if result.Err != nil {
-		return nil, result.Err
-	}
-	return result.Data.([]*model.Job), nil
+	return a.Srv.Store.Job().GetAllByTypePage(jobType, offset, limit)
 }
 
 func (a *App) CreateJob(job *model.Job) (*model.Job, *model.AppError) {

app/job_test.go

@@ -7,7 +7,7 @@ import (
 	"testing"
 
 	"github.com/mattermost/mattermost-server/model"
-	"github.com/mattermost/mattermost-server/store"
+	"github.com/stretchr/testify/require"
 )
 
 func TestGetJob(t *testing.T) {
@@ -18,9 +18,8 @@ func TestGetJob(t *testing.T) {
 		Id:     model.NewId(),
 		Status: model.NewId(),
 	}
-	if result := <-th.App.Srv.Store.Job().Save(status); result.Err != nil {
-		t.Fatal(result.Err)
-	}
+	_, err := th.App.Srv.Store.Job().Save(status)
+	require.Nil(t, err)
 
 	defer th.App.Srv.Store.Job().Delete(status.Id)
 
@@ -56,7 +55,8 @@ func TestGetJobByType(t *testing.T) {
 	}
 
 	for _, status := range statuses {
-		store.Must(th.App.Srv.Store.Job().Save(status))
+		_, err := th.App.Srv.Store.Job().Save(status)
+		require.Nil(t, err)
 		defer th.App.Srv.Store.Job().Delete(status.Id)
 	}
 

jobs/jobs.go

@@ -31,50 +31,42 @@ func (srv *JobServer) CreateJob(jobType string, jobData map[string]string) (*mod
 		return nil, err
 	}
 
-	if result := <-srv.Store.Job().Save(&job); result.Err != nil {
-		return nil, result.Err
+	if _, err := srv.Store.Job().Save(&job); err != nil {
+		return nil, err
 	}
 
 	return &job, nil
 }
 
 func (srv *JobServer) GetJob(id string) (*model.Job, *model.AppError) {
-	if result := <-srv.Store.Job().Get(id); result.Err != nil {
-		return nil, result.Err
-	} else {
-		return result.Data.(*model.Job), nil
-	}
+	return srv.Store.Job().Get(id)
 }
 
 func (srv *JobServer) ClaimJob(job *model.Job) (bool, *model.AppError) {
-	if result := <-srv.Store.Job().UpdateStatusOptimistically(job.Id, model.JOB_STATUS_PENDING, model.JOB_STATUS_IN_PROGRESS); result.Err != nil {
-		return false, result.Err
-	} else {
-		success := result.Data.(bool)
-		return success, nil
-	}
+	return srv.Store.Job().UpdateStatusOptimistically(job.Id, model.JOB_STATUS_PENDING, model.JOB_STATUS_IN_PROGRESS)
 }
 
 func (srv *JobServer) SetJobProgress(job *model.Job, progress int64) *model.AppError {
 	job.Status = model.JOB_STATUS_IN_PROGRESS
 	job.Progress = progress
 
-	if result := <-srv.Store.Job().UpdateOptimistically(job, model.JOB_STATUS_IN_PROGRESS); result.Err != nil {
-		return result.Err
-	} else {
-		return nil
+	if _, err := srv.Store.Job().UpdateOptimistically(job, model.JOB_STATUS_IN_PROGRESS); err != nil {
+		return err
 	}
+	return nil
 }
 
 func (srv *JobServer) SetJobSuccess(job *model.Job) *model.AppError {
-	result := <-srv.Store.Job().UpdateStatus(job.Id, model.JOB_STATUS_SUCCESS)
-	return result.Err
+	if _, err := srv.Store.Job().UpdateStatus(job.Id, model.JOB_STATUS_SUCCESS); err != nil {
+		return err
+	}
+	return nil
 }
 
 func (srv *JobServer) SetJobError(job *model.Job, jobError *model.AppError) *model.AppError {
 	if jobError == nil {
-		result := <-srv.Store.Job().UpdateStatus(job.Id, model.JOB_STATUS_ERROR)
-		return result.Err
+		_, err := srv.Store.Job().UpdateStatus(job.Id, model.JOB_STATUS_ERROR)
+		return err
 	}
 
 	job.Status = model.JOB_STATUS_ERROR
@@ -84,17 +76,18 @@ func (srv *JobServer) SetJobError(job *model.Job, jobError *model.AppError) *mod
 	}
 	job.Data["error"] = jobError.Message + " — " + jobError.DetailedError
 
-	if result := <-srv.Store.Job().UpdateOptimistically(job, model.JOB_STATUS_IN_PROGRESS); result.Err != nil {
-		return result.Err
-	} else {
-		if !result.Data.(bool) {
-			if result := <-srv.Store.Job().UpdateOptimistically(job, model.JOB_STATUS_CANCEL_REQUESTED); result.Err != nil {
-				return result.Err
-			} else {
-				if !result.Data.(bool) {
-					return model.NewAppError("Jobs.SetJobError", "jobs.set_job_error.update.error", nil, "id="+job.Id, http.StatusInternalServerError)
-				}
-			}
+	updated, err := srv.Store.Job().UpdateOptimistically(job, model.JOB_STATUS_IN_PROGRESS)
+	if err != nil {
+		return err
+	}
+
+	if !updated {
+		updated, err = srv.Store.Job().UpdateOptimistically(job, model.JOB_STATUS_CANCEL_REQUESTED)
+		if err != nil {
+			return err
+		}
+		if !updated {
+			return model.NewAppError("Jobs.SetJobError", "jobs.set_job_error.update.error", nil, "id="+job.Id, http.StatusInternalServerError)
 		}
 	}
 
@@ -102,27 +95,36 @@ func (srv *JobServer) SetJobError(job *model.Job, jobError *model.AppError) *mod
 }
 
 func (srv *JobServer) SetJobCanceled(job *model.Job) *model.AppError {
-	result := <-srv.Store.Job().UpdateStatus(job.Id, model.JOB_STATUS_CANCELED)
-	return result.Err
+	if _, err := srv.Store.Job().UpdateStatus(job.Id, model.JOB_STATUS_CANCELED); err != nil {
+		return err
+	}
+	return nil
 }
 
 func (srv *JobServer) UpdateInProgressJobData(job *model.Job) *model.AppError {
 	job.Status = model.JOB_STATUS_IN_PROGRESS
 	job.LastActivityAt = model.GetMillis()
-	result := <-srv.Store.Job().UpdateOptimistically(job, model.JOB_STATUS_IN_PROGRESS)
-	return result.Err
+	if _, err := srv.Store.Job().UpdateOptimistically(job, model.JOB_STATUS_IN_PROGRESS); err != nil {
+		return err
+	}
+	return nil
 }
 
 func (srv *JobServer) RequestCancellation(jobId string) *model.AppError {
-	if result := <-srv.Store.Job().UpdateStatusOptimistically(jobId, model.JOB_STATUS_PENDING, model.JOB_STATUS_CANCELED); result.Err != nil {
-		return result.Err
-	} else if result.Data.(bool) {
+	updated, err := srv.Store.Job().UpdateStatusOptimistically(jobId, model.JOB_STATUS_PENDING, model.JOB_STATUS_CANCELED)
+	if err != nil {
+		return err
+	}
+	if updated {
 		return nil
 	}
 
-	if result := <-srv.Store.Job().UpdateStatusOptimistically(jobId, model.JOB_STATUS_IN_PROGRESS, model.JOB_STATUS_CANCEL_REQUESTED); result.Err != nil {
-		return result.Err
-	} else if result.Data.(bool) {
+	updated, err = srv.Store.Job().UpdateStatusOptimistically(jobId, model.JOB_STATUS_IN_PROGRESS, model.JOB_STATUS_CANCEL_REQUESTED)
+	if err != nil {
+		return err
+	}
+
+	if updated {
 		return nil
 	}
 
@@ -137,8 +139,7 @@ func (srv *JobServer) CancellationWatcher(ctx context.Context, jobId string, can
 			return
 		case <-time.After(CANCEL_WATCHER_POLLING_INTERVAL * time.Millisecond):
 			mlog.Debug(fmt.Sprintf("CancellationWatcher for Job: %v polling.", jobId))
-			if result := <-srv.Store.Job().Get(jobId); result.Err == nil {
-				jobStatus := result.Data.(*model.Job)
+			if jobStatus, err := srv.Store.Job().Get(jobId); err == nil {
 				if jobStatus.Status == model.JOB_STATUS_CANCEL_REQUESTED {
 					close(cancelChan)
 					return
@@ -159,17 +160,13 @@ func GenerateNextStartDateTime(now time.Time, nextStartTime time.Time) *time.Tim
 }
 
 func (srv *JobServer) CheckForPendingJobsByType(jobType string) (bool, *model.AppError) {
-	if result := <-srv.Store.Job().GetCountByStatusAndType(model.JOB_STATUS_PENDING, jobType); result.Err != nil {
-		return false, result.Err
-	} else {
-		return result.Data.(int64) > 0, nil
+	count, err := srv.Store.Job().GetCountByStatusAndType(model.JOB_STATUS_PENDING, jobType)
+	if err != nil {
+		return false, err
 	}
+	return count > 0, nil
 }
 
 func (srv *JobServer) GetLastSuccessfulJobByType(jobType string) (*model.Job, *model.AppError) {
-	if result := <-srv.Store.Job().GetNewestJobByStatusAndType(model.JOB_STATUS_SUCCESS, jobType); result.Err != nil {
-		return nil, result.Err
-	} else {
-		return result.Data.(*model.Job), nil
-	}
+	return srv.Store.Job().GetNewestJobByStatusAndType(model.JOB_STATUS_SUCCESS, jobType)
 }

jobs/jobs_watcher.go

@@ -66,60 +66,60 @@ func (watcher *Watcher) Stop() {
 }
 
 func (watcher *Watcher) PollAndNotify() {
-	if result := <-watcher.srv.Store.Job().GetAllByStatus(model.JOB_STATUS_PENDING); result.Err != nil {
-		mlog.Error(fmt.Sprintf("Error occurred getting all pending statuses: %v", result.Err.Error()))
-	} else {
-		jobs := result.Data.([]*model.Job)
+	jobs, err := watcher.srv.Store.Job().GetAllByStatus(model.JOB_STATUS_PENDING)
+	if err != nil {
+		mlog.Error(fmt.Sprintf("Error occurred getting all pending statuses: %v", err.Error()))
+		return
+	}
 
-		for _, job := range jobs {
-			if job.Type == model.JOB_TYPE_DATA_RETENTION {
-				if watcher.workers.DataRetention != nil {
-					select {
-					case watcher.workers.DataRetention.JobChannel() <- *job:
-					default:
-					}
+	for _, job := range jobs {
+		if job.Type == model.JOB_TYPE_DATA_RETENTION {
+			if watcher.workers.DataRetention != nil {
+				select {
+				case watcher.workers.DataRetention.JobChannel() <- *job:
+				default:
 				}
-			} else if job.Type == model.JOB_TYPE_MESSAGE_EXPORT {
-				if watcher.workers.MessageExport != nil {
-					select {
-					case watcher.workers.MessageExport.JobChannel() <- *job:
-					default:
-					}
+			}
+		} else if job.Type == model.JOB_TYPE_MESSAGE_EXPORT {
+			if watcher.workers.MessageExport != nil {
+				select {
+				case watcher.workers.MessageExport.JobChannel() <- *job:
+				default:
 				}
-			} else if job.Type == model.JOB_TYPE_ELASTICSEARCH_POST_INDEXING {
-				if watcher.workers.ElasticsearchIndexing != nil {
-					select {
-					case watcher.workers.ElasticsearchIndexing.JobChannel() <- *job:
-					default:
-					}
+			}
+		} else if job.Type == model.JOB_TYPE_ELASTICSEARCH_POST_INDEXING {
+			if watcher.workers.ElasticsearchIndexing != nil {
+				select {
+				case watcher.workers.ElasticsearchIndexing.JobChannel() <- *job:
+				default:
 				}
-			} else if job.Type == model.JOB_TYPE_ELASTICSEARCH_POST_AGGREGATION {
-				if watcher.workers.ElasticsearchAggregation != nil {
-					select {
-					case watcher.workers.ElasticsearchAggregation.JobChannel() <- *job:
-					default:
-					}
+			}
+		} else if job.Type == model.JOB_TYPE_ELASTICSEARCH_POST_AGGREGATION {
+			if watcher.workers.ElasticsearchAggregation != nil {
+				select {
+				case watcher.workers.ElasticsearchAggregation.JobChannel() <- *job:
+				default:
 				}
-			} else if job.Type == model.JOB_TYPE_LDAP_SYNC {
-				if watcher.workers.LdapSync != nil {
-					select {
-					case watcher.workers.LdapSync.JobChannel() <- *job:
-					default:
-					}
+			}
+		} else if job.Type == model.JOB_TYPE_LDAP_SYNC {
+			if watcher.workers.LdapSync != nil {
+				select {
+				case watcher.workers.LdapSync.JobChannel() <- *job:
+				default:
 				}
-			} else if job.Type == model.JOB_TYPE_MIGRATIONS {
-				if watcher.workers.Migrations != nil {
-					select {
-					case watcher.workers.Migrations.JobChannel() <- *job:
-					default:
-					}
+			}
+		} else if job.Type == model.JOB_TYPE_MIGRATIONS {
+			if watcher.workers.Migrations != nil {
+				select {
+				case watcher.workers.Migrations.JobChannel() <- *job:
+				default:
 				}
-			} else if job.Type == model.JOB_TYPE_PLUGINS {
-				if watcher.workers.Plugins != nil {
-					select {
-					case watcher.workers.Plugins.JobChannel() <- *job:
-					default:
-					}
+			}
+		} else if job.Type == model.JOB_TYPE_PLUGINS {
+			if watcher.workers.Plugins != nil {
+				select {
+				case watcher.workers.Plugins.JobChannel() <- *job:
+				default:
 				}
 			}
 		}

migrations/helper_test.go

@@ -267,16 +267,15 @@ func (me *TestHelper) ResetRoleMigration() {
 }
 
 func (me *TestHelper) DeleteAllJobsByTypeAndMigrationKey(jobType string, migrationKey string) {
-	if res := <-me.App.Srv.Store.Job().GetAllByType(model.JOB_TYPE_MIGRATIONS); res.Err != nil {
-		panic(res.Err)
-	} else {
-		jobs := res.Data.([]*model.Job)
+	jobs, err := me.App.Srv.Store.Job().GetAllByType(model.JOB_TYPE_MIGRATIONS)
+	if err != nil {
+		panic(err)
+	}
 
-		for _, job := range jobs {
-			if key, ok := job.Data[JOB_DATA_KEY_MIGRATION]; ok && key == migrationKey {
-				if res := <-me.App.Srv.Store.Job().Delete(job.Id); res.Err != nil {
-					panic(res.Err)
-				}
+	for _, job := range jobs {
+		if key, ok := job.Data[JOB_DATA_KEY_MIGRATION]; ok && key == migrationKey {
+			if _, err = me.App.Srv.Store.Job().Delete(job.Id); err != nil {
+				panic(err)
 			}
 		}
 	}

migrations/migrations.go

@@ -40,21 +40,22 @@ func GetMigrationState(migration string, store store.Store) (string, *model.Job,
 		return MIGRATION_STATE_COMPLETED, nil, nil
 	}
 
-	if result := <-store.Job().GetAllByType(model.JOB_TYPE_MIGRATIONS); result.Err != nil {
-		return "", nil, result.Err
-	} else {
-		for _, job := range result.Data.([]*model.Job) {
-			if key, ok := job.Data[JOB_DATA_KEY_MIGRATION]; ok {
-				if key != migration {
-					continue
-				}
+	jobs, err := store.Job().GetAllByType(model.JOB_TYPE_MIGRATIONS)
+	if err != nil {
+		return "", nil, err
+	}
 
-				switch job.Status {
-				case model.JOB_STATUS_IN_PROGRESS, model.JOB_STATUS_PENDING:
-					return MIGRATION_STATE_IN_PROGRESS, job, nil
-				default:
-					return MIGRATION_STATE_UNSCHEDULED, job, nil
-				}
+	for _, job := range jobs {
+		if key, ok := job.Data[JOB_DATA_KEY_MIGRATION]; ok {
+			if key != migration {
+				continue
+			}
+
+			switch job.Status {
+			case model.JOB_STATUS_IN_PROGRESS, model.JOB_STATUS_PENDING:
+				return MIGRATION_STATE_IN_PROGRESS, job, nil
+			default:
+				return MIGRATION_STATE_UNSCHEDULED, job, nil
 			}
 		}
 	}

migrations/migrations_test.go

@@ -7,6 +7,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 
 	"github.com/mattermost/mattermost-server/model"
 )
@@ -52,7 +53,8 @@ func TestGetMigrationState(t *testing.T) {
 		Type:   model.JOB_TYPE_MIGRATIONS,
 	}
 
-	j1 = (<-th.App.Srv.Store.Job().Save(j1)).Data.(*model.Job)
+	j1, err = th.App.Srv.Store.Job().Save(j1)
+	require.Nil(t, err)
 
 	state, job, err = GetMigrationState(migrationKey, th.App.Srv.Store)
 	assert.Nil(t, err)
@@ -70,7 +72,8 @@ func TestGetMigrationState(t *testing.T) {
 		Type:   model.JOB_TYPE_MIGRATIONS,
 	}
 
-	j2 = (<-th.App.Srv.Store.Job().Save(j2)).Data.(*model.Job)
+	j2, err = th.App.Srv.Store.Job().Save(j2)
+	require.Nil(t, err)
 
 	state, job, err = GetMigrationState(migrationKey, th.App.Srv.Store)
 	assert.Nil(t, err)
@@ -88,7 +91,8 @@ func TestGetMigrationState(t *testing.T) {
 		Type:   model.JOB_TYPE_MIGRATIONS,
 	}
 
-	j3 = (<-th.App.Srv.Store.Job().Save(j3)).Data.(*model.Job)
+	j3, err = th.App.Srv.Store.Job().Save(j3)
+	require.Nil(t, err)
 
 	state, job, err = GetMigrationState(migrationKey, th.App.Srv.Store)
 	assert.Nil(t, err)

store/sqlstore/job_store.go

@@ -34,267 +34,161 @@ func (jss SqlJobStore) CreateIndexesIfNotExists() {
 	jss.CreateIndexIfNotExists("idx_jobs_type", "Jobs", "Type")
 }
 
-func (jss SqlJobStore) Save(job *model.Job) store.StoreChannel {
-	return store.Do(func(result *store.StoreResult) {
-		if err := jss.GetMaster().Insert(job); err != nil {
-			result.Err = model.NewAppError("SqlJobStore.Save", "store.sql_job.save.app_error", nil, "id="+job.Id+", "+err.Error(), http.StatusInternalServerError)
-		} else {
-			result.Data = job
-		}
-	})
+func (jss SqlJobStore) Save(job *model.Job) (*model.Job, *model.AppError) {
+	if err := jss.GetMaster().Insert(job); err != nil {
+		return nil, model.NewAppError("SqlJobStore.Save", "store.sql_job.save.app_error", nil, "id="+job.Id+", "+err.Error(), http.StatusInternalServerError)
+	}
+	return job, nil
 }
 
-func (jss SqlJobStore) UpdateOptimistically(job *model.Job, currentStatus string) store.StoreChannel {
-	return store.Do(func(result *store.StoreResult) {
-		if sqlResult, err := jss.GetMaster().Exec(
-			`UPDATE
-				Jobs
-			SET
-				LastActivityAt = :LastActivityAt,
-				Status = :Status,
-				Progress = :Progress,
-				Data = :Data
-			WHERE
-				Id = :Id
-			AND
-				Status = :OldStatus`,
-			map[string]interface{}{
-				"Id":             job.Id,
-				"OldStatus":      currentStatus,
-				"LastActivityAt": model.GetMillis(),
-				"Status":         job.Status,
-				"Data":           job.DataToJson(),
-				"Progress":       job.Progress,
-			}); err != nil {
-			result.Err = model.NewAppError("SqlJobStore.UpdateOptimistically", "store.sql_job.update.app_error", nil, "id="+job.Id+", "+err.Error(), http.StatusInternalServerError)
-		} else {
-			rows, err := sqlResult.RowsAffected()
+func (jss SqlJobStore) UpdateOptimistically(job *model.Job, currentStatus string) (bool, *model.AppError) {
+	query := "UPDATE Jobs SET LastActivityAt = :LastActivityAt, Status = :Status, Progress = :Progress, Data = :Data WHERE Id = :Id AND Status = :OldStatus"
+	params := map[string]interface{}{
+		"Id":             job.Id,
+		"OldStatus":      currentStatus,
+		"LastActivityAt": model.GetMillis(),
+		"Status":         job.Status,
+		"Data":           job.DataToJson(),
+		"Progress":       job.Progress,
+	}
+	sqlResult, err := jss.GetMaster().Exec(query, params)
+	if err != nil {
+		return false, model.NewAppError("SqlJobStore.UpdateOptimistically", "store.sql_job.update.app_error", nil, "id="+job.Id+", "+err.Error(), http.StatusInternalServerError)
+	}
 
-			if err != nil {
-				result.Err = model.NewAppError("SqlJobStore.UpdateStatus", "store.sql_job.update.app_error", nil, "id="+job.Id+", "+err.Error(), http.StatusInternalServerError)
-			} else {
-				if rows == 1 {
-					result.Data = true
-				} else {
-					result.Data = false
-				}
-			}
-		}
-	})
+	rows, err := sqlResult.RowsAffected()
+
+	if err != nil {
+		return false, model.NewAppError("SqlJobStore.UpdateStatus", "store.sql_job.update.app_error", nil, "id="+job.Id+", "+err.Error(), http.StatusInternalServerError)
+	}
+
+	if rows != 1 {
+		return false, nil
+	}
+
+	return true, nil
 }
 
-func (jss SqlJobStore) UpdateStatus(id string, status string) store.StoreChannel {
-	return store.Do(func(result *store.StoreResult) {
-		job := &model.Job{
-			Id:             id,
-			Status:         status,
-			LastActivityAt: model.GetMillis(),
-		}
+func (jss SqlJobStore) UpdateStatus(id string, status string) (*model.Job, *model.AppError) {
+	job := &model.Job{
+		Id:             id,
+		Status:         status,
+		LastActivityAt: model.GetMillis(),
+	}
 
-		if _, err := jss.GetMaster().UpdateColumns(func(col *gorp.ColumnMap) bool {
-			return col.ColumnName == "Status" || col.ColumnName == "LastActivityAt"
-		}, job); err != nil {
-			result.Err = model.NewAppError("SqlJobStore.UpdateStatus", "store.sql_job.update.app_error", nil, "id="+id+", "+err.Error(), http.StatusInternalServerError)
-		}
+	if _, err := jss.GetMaster().UpdateColumns(func(col *gorp.ColumnMap) bool {
+		return col.ColumnName == "Status" || col.ColumnName == "LastActivityAt"
+	}, job); err != nil {
+		return nil, model.NewAppError("SqlJobStore.UpdateStatus", "store.sql_job.update.app_error", nil, "id="+id+", "+err.Error(), http.StatusInternalServerError)
+	}
 
-		if result.Err == nil {
-			result.Data = job
-		}
-	})
+	return job, nil
 }
 
-func (jss SqlJobStore) UpdateStatusOptimistically(id string, currentStatus string, newStatus string) store.StoreChannel {
-	return store.Do(func(result *store.StoreResult) {
-		var startAtClause string
-		if newStatus == model.JOB_STATUS_IN_PROGRESS {
-			startAtClause = `StartAt = :StartAt,`
-		}
+func (jss SqlJobStore) UpdateStatusOptimistically(id string, currentStatus string, newStatus string) (bool, *model.AppError) {
+	var startAtClause string
+	if newStatus == model.JOB_STATUS_IN_PROGRESS {
+		startAtClause = "StartAt = :StartAt,"
+	}
+	query := "UPDATE Jobs SET " + startAtClause + " Status = :NewStatus, LastActivityAt = :LastActivityAt WHERE Id = :Id AND Status = :OldStatus"
+	params := map[string]interface{}{
+		"Id":             id,
+		"OldStatus":      currentStatus,
+		"NewStatus":      newStatus,
+		"StartAt":        model.GetMillis(),
+		"LastActivityAt": model.GetMillis(),
+	}
 
-		if sqlResult, err := jss.GetMaster().Exec(
-			`UPDATE
-				Jobs
-			SET `+startAtClause+`
-				Status = :NewStatus,
-				LastActivityAt = :LastActivityAt
-			WHERE
-				Id = :Id
-			AND
-				Status = :OldStatus`, map[string]interface{}{"Id": id, "OldStatus": currentStatus, "NewStatus": newStatus, "StartAt": model.GetMillis(), "LastActivityAt": model.GetMillis()}); err != nil {
-			result.Err = model.NewAppError("SqlJobStore.UpdateStatus", "store.sql_job.update.app_error", nil, "id="+id+", "+err.Error(), http.StatusInternalServerError)
-		} else {
-			rows, err := sqlResult.RowsAffected()
+	sqlResult, err := jss.GetMaster().Exec(query, params)
+	if err != nil {
+		return false, model.NewAppError("SqlJobStore.UpdateStatus", "store.sql_job.update.app_error", nil, "id="+id+", "+err.Error(), http.StatusInternalServerError)
+	}
+	rows, err := sqlResult.RowsAffected()
+	if err != nil {
+		return false, model.NewAppError("SqlJobStore.UpdateStatus", "store.sql_job.update.app_error", nil, "id="+id+", "+err.Error(), http.StatusInternalServerError)
+	}
+	if rows != 1 {
+		return false, nil
+	}
 
-			if err != nil {
-				result.Err = model.NewAppError("SqlJobStore.UpdateStatus", "store.sql_job.update.app_error", nil, "id="+id+", "+err.Error(), http.StatusInternalServerError)
-			} else {
-				if rows == 1 {
-					result.Data = true
-				} else {
-					result.Data = false
-				}
-			}
-		}
-	})
+	return true, nil
 }
 
-func (jss SqlJobStore) Get(id string) store.StoreChannel {
-	return store.Do(func(result *store.StoreResult) {
-		var status *model.Job
+func (jss SqlJobStore) Get(id string) (*model.Job, *model.AppError) {
+	query := "SELECT * FROM Jobs WHERE Id = :Id"
 
-		if err := jss.GetReplica().SelectOne(&status,
-			`SELECT
-				*
-			FROM
-				Jobs
-			WHERE
-				Id = :Id`, map[string]interface{}{"Id": id}); err != nil {
-			if err == sql.ErrNoRows {
-				result.Err = model.NewAppError("SqlJobStore.Get", "store.sql_job.get.app_error", nil, "Id="+id+", "+err.Error(), http.StatusNotFound)
-			} else {
-				result.Err = model.NewAppError("SqlJobStore.Get", "store.sql_job.get.app_error", nil, "Id="+id+", "+err.Error(), http.StatusInternalServerError)
-			}
-		} else {
-			result.Data = status
+	var status *model.Job
+	if err := jss.GetReplica().SelectOne(&status, query, map[string]interface{}{"Id": id}); err != nil {
+		if err == sql.ErrNoRows {
+			return nil, model.NewAppError("SqlJobStore.Get", "store.sql_job.get.app_error", nil, "Id="+id+", "+err.Error(), http.StatusNotFound)
 		}
-	})
+		return nil, model.NewAppError("SqlJobStore.Get", "store.sql_job.get.app_error", nil, "Id="+id+", "+err.Error(), http.StatusInternalServerError)
+	}
+	return status, nil
 }
 
-func (jss SqlJobStore) GetAllPage(offset int, limit int) store.StoreChannel {
-	return store.Do(func(result *store.StoreResult) {
-		var statuses []*model.Job
+func (jss SqlJobStore) GetAllPage(offset int, limit int) ([]*model.Job, *model.AppError) {
+	query := "SELECT * FROM Jobs ORDER BY CreateAt DESC LIMIT :Limit OFFSET :Offset"
 
-		if _, err := jss.GetReplica().Select(&statuses,
-			`SELECT
-				*
-			FROM
-				Jobs
-			ORDER BY
-				CreateAt DESC
-			LIMIT
-				:Limit
-			OFFSET
-				:Offset`, map[string]interface{}{"Limit": limit, "Offset": offset}); err != nil {
-			result.Err = model.NewAppError("SqlJobStore.GetAllPage", "store.sql_job.get_all.app_error", nil, err.Error(), http.StatusInternalServerError)
-		} else {
-			result.Data = statuses
-		}
-	})
+	var statuses []*model.Job
+	if _, err := jss.GetReplica().Select(&statuses, query, map[string]interface{}{"Limit": limit, "Offset": offset}); err != nil {
+		return nil, model.NewAppError("SqlJobStore.GetAllPage", "store.sql_job.get_all.app_error", nil, err.Error(), http.StatusInternalServerError)
+	}
+	return statuses, nil
 }
 
-func (jss SqlJobStore) GetAllByType(jobType string) store.StoreChannel {
-	return store.Do(func(result *store.StoreResult) {
-		var statuses []*model.Job
-
-		if _, err := jss.GetReplica().Select(&statuses,
-			`SELECT
-				*
-			FROM
-				Jobs
-			WHERE
-				Type = :Type
-			ORDER BY
-				CreateAt DESC`, map[string]interface{}{"Type": jobType}); err != nil {
-			result.Err = model.NewAppError("SqlJobStore.GetAllByType", "store.sql_job.get_all.app_error", nil, "Type="+jobType+", "+err.Error(), http.StatusInternalServerError)
-		} else {
-			result.Data = statuses
-		}
-	})
+func (jss SqlJobStore) GetAllByType(jobType string) ([]*model.Job, *model.AppError) {
+	query := "SELECT * FROM Jobs WHERE Type = :Type ORDER BY CreateAt DESC"
+	var statuses []*model.Job
+	if _, err := jss.GetReplica().Select(&statuses, query, map[string]interface{}{"Type": jobType}); err != nil {
+		return nil, model.NewAppError("SqlJobStore.GetAllByType", "store.sql_job.get_all.app_error", nil, "Type="+jobType+", "+err.Error(), http.StatusInternalServerError)
+	}
+	return statuses, nil
 }
 
-func (jss SqlJobStore) GetAllByTypePage(jobType string, offset int, limit int) store.StoreChannel {
-	return store.Do(func(result *store.StoreResult) {
-		var statuses []*model.Job
+func (jss SqlJobStore) GetAllByTypePage(jobType string, offset int, limit int) ([]*model.Job, *model.AppError) {
+	query := "SELECT * FROM Jobs WHERE Type = :Type ORDER BY CreateAt DESC LIMIT :Limit OFFSET :Offset"
 
-		if _, err := jss.GetReplica().Select(&statuses,
-			`SELECT
-				*
-			FROM
-				Jobs
-			WHERE
-				Type = :Type
-			ORDER BY
-				CreateAt DESC
-			LIMIT
-				:Limit
-			OFFSET
-				:Offset`, map[string]interface{}{"Type": jobType, "Limit": limit, "Offset": offset}); err != nil {
-			result.Err = model.NewAppError("SqlJobStore.GetAllByTypePage", "store.sql_job.get_all.app_error", nil, "Type="+jobType+", "+err.Error(), http.StatusInternalServerError)
-		} else {
-			result.Data = statuses
-		}
-	})
+	var statuses []*model.Job
+	if _, err := jss.GetReplica().Select(&statuses, query, map[string]interface{}{"Type": jobType, "Limit": limit, "Offset": offset}); err != nil {
+		return nil, model.NewAppError("SqlJobStore.GetAllByTypePage", "store.sql_job.get_all.app_error", nil, "Type="+jobType+", "+err.Error(), http.StatusInternalServerError)
+	}
+	return statuses, nil
 }
 
-func (jss SqlJobStore) GetAllByStatus(status string) store.StoreChannel {
-	return store.Do(func(result *store.StoreResult) {
-		var statuses []*model.Job
+func (jss SqlJobStore) GetAllByStatus(status string) ([]*model.Job, *model.AppError) {
+	var statuses []*model.Job
+	query := "SELECT * FROM Jobs WHERE Status = :Status ORDER BY CreateAt ASC"
 
-		if _, err := jss.GetReplica().Select(&statuses,
-			`SELECT
-				*
-			FROM
-				Jobs
-			WHERE
-				Status = :Status
-			ORDER BY
-				CreateAt ASC`, map[string]interface{}{"Status": status}); err != nil {
-			result.Err = model.NewAppError("SqlJobStore.GetAllByStatus", "store.sql_job.get_all.app_error", nil, "Status="+status+", "+err.Error(), http.StatusInternalServerError)
-		} else {
-			result.Data = statuses
-		}
-	})
+	if _, err := jss.GetReplica().Select(&statuses, query, map[string]interface{}{"Status": status}); err != nil {
+		return nil, model.NewAppError("SqlJobStore.GetAllByStatus", "store.sql_job.get_all.app_error", nil, "Status="+status+", "+err.Error(), http.StatusInternalServerError)
+	}
+	return statuses, nil
 }
 
-func (jss SqlJobStore) GetNewestJobByStatusAndType(status string, jobType string) store.StoreChannel {
-	return store.Do(func(result *store.StoreResult) {
-		var job *model.Job
+func (jss SqlJobStore) GetNewestJobByStatusAndType(status string, jobType string) (*model.Job, *model.AppError) {
+	query := "SELECT * FROM Jobs WHERE Status = :Status AND Type = :Type ORDER BY CreateAt DESC LIMIT 1"
 
-		if err := jss.GetReplica().SelectOne(&job,
-			`SELECT
-				*
-			FROM
-				Jobs
-			WHERE
-				Status = :Status
-			AND
-				Type = :Type
-			ORDER BY
-				CreateAt DESC
-			LIMIT 1`, map[string]interface{}{"Status": status, "Type": jobType}); err != nil && err != sql.ErrNoRows {
-			result.Err = model.NewAppError("SqlJobStore.GetNewestJobByStatusAndType", "store.sql_job.get_newest_job_by_status_and_type.app_error", nil, "Status="+status+", "+err.Error(), http.StatusInternalServerError)
-		} else {
-			result.Data = job
-		}
-	})
+	var job *model.Job
+	if err := jss.GetReplica().SelectOne(&job, query, map[string]interface{}{"Status": status, "Type": jobType}); err != nil && err != sql.ErrNoRows {
+		return nil, model.NewAppError("SqlJobStore.GetNewestJobByStatusAndType", "store.sql_job.get_newest_job_by_status_and_type.app_error", nil, "Status="+status+", "+err.Error(), http.StatusInternalServerError)
+	}
+	return job, nil
 }
 
-func (jss SqlJobStore) GetCountByStatusAndType(status string, jobType string) store.StoreChannel {
-	return store.Do(func(result *store.StoreResult) {
-		if count, err := jss.GetReplica().SelectInt(`SELECT
-				COUNT(*)
-			FROM
-				Jobs
-			WHERE
-				Status = :Status
-			AND
-				Type = :Type`, map[string]interface{}{"Status": status, "Type": jobType}); err != nil {
-			result.Err = model.NewAppError("SqlJobStore.GetCountByStatusAndType", "store.sql_job.get_count_by_status_and_type.app_error", nil, "Status="+status+", "+err.Error(), http.StatusInternalServerError)
-		} else {
-			result.Data = count
-		}
-	})
+func (jss SqlJobStore) GetCountByStatusAndType(status string, jobType string) (int64, *model.AppError) {
+	query := "SELECT COUNT(*) FROM Jobs WHERE Status = :Status AND Type = :Type"
+	count, err := jss.GetReplica().SelectInt(query, map[string]interface{}{"Status": status, "Type": jobType})
+	if err != nil {
+		return int64(0), model.NewAppError("SqlJobStore.GetCountByStatusAndType", "store.sql_job.get_count_by_status_and_type.app_error", nil, "Status="+status+", "+err.Error(), http.StatusInternalServerError)
+	}
+	return count, nil
 }
 
-func (jss SqlJobStore) Delete(id string) store.StoreChannel {
-	return store.Do(func(result *store.StoreResult) {
-		if _, err := jss.GetMaster().Exec(
-			`DELETE FROM
-				Jobs
-			WHERE
-				Id = :Id`, map[string]interface{}{"Id": id}); err != nil {
-			result.Err = model.NewAppError("SqlJobStore.DeleteByType", "store.sql_job.delete.app_error", nil, "id="+id+", "+err.Error(), http.StatusInternalServerError)
-		} else {
-			result.Data = id
-		}
-	})
+func (jss SqlJobStore) Delete(id string) (string, *model.AppError) {
+	query := "DELETE FROM Jobs WHERE Id = :Id"
+	if _, err := jss.GetMaster().Exec(query, map[string]interface{}{"Id": id}); err != nil {
+		return "", model.NewAppError("SqlJobStore.DeleteByType", "store.sql_job.delete.app_error", nil, "id="+id+", "+err.Error(), http.StatusInternalServerError)
+	}
+	return id, nil
 }

store/store.go

@@ -500,18 +500,18 @@ type ReactionStore interface {
 }
 
 type JobStore interface {
-	Save(job *model.Job) StoreChannel
-	UpdateOptimistically(job *model.Job, currentStatus string) StoreChannel
-	UpdateStatus(id string, status string) StoreChannel
-	UpdateStatusOptimistically(id string, currentStatus string, newStatus string) StoreChannel
-	Get(id string) StoreChannel
-	GetAllPage(offset int, limit int) StoreChannel
-	GetAllByType(jobType string) StoreChannel
-	GetAllByTypePage(jobType string, offset int, limit int) StoreChannel
-	GetAllByStatus(status string) StoreChannel
-	GetNewestJobByStatusAndType(status string, jobType string) StoreChannel
-	GetCountByStatusAndType(status string, jobType string) StoreChannel
-	Delete(id string) StoreChannel
+	Save(job *model.Job) (*model.Job, *model.AppError)
+	UpdateOptimistically(job *model.Job, currentStatus string) (bool, *model.AppError)
+	UpdateStatus(id string, status string) (*model.Job, *model.AppError)
+	UpdateStatusOptimistically(id string, currentStatus string, newStatus string) (bool, *model.AppError)
+	Get(id string) (*model.Job, *model.AppError)
+	GetAllPage(offset int, limit int) ([]*model.Job, *model.AppError)
+	GetAllByType(jobType string) ([]*model.Job, *model.AppError)
+	GetAllByTypePage(jobType string, offset int, limit int) ([]*model.Job, *model.AppError)
+	GetAllByStatus(status string) ([]*model.Job, *model.AppError)
+	GetNewestJobByStatusAndType(status string, jobType string) (*model.Job, *model.AppError)
+	GetCountByStatusAndType(status string, jobType string) (int64, *model.AppError)
+	Delete(id string) (string, *model.AppError)
 }
 
 type UserAccessTokenStore interface {

store/storetest/job_store.go

@@ -11,6 +11,7 @@ import (
 	"github.com/mattermost/mattermost-server/model"
 	"github.com/mattermost/mattermost-server/store"
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 func TestJobStore(t *testing.T, ss store.Store) {
@@ -38,17 +39,14 @@ func testJobSaveGet(t *testing.T, ss store.Store) {
 		},
 	}
 
-	if result := <-ss.Job().Save(job); result.Err != nil {
-		t.Fatal(result.Err)
-	}
+	_, err := ss.Job().Save(job)
+	require.Nil(t, err)
 
-	defer func() {
-		<-ss.Job().Delete(job.Id)
-	}()
+	defer ss.Job().Delete(job.Id)
 
-	if result := <-ss.Job().Get(job.Id); result.Err != nil {
-		t.Fatal(result.Err)
-	} else if received := result.Data.(*model.Job); received.Id != job.Id {
+	if received, err := ss.Job().Get(job.Id); err != nil {
+		t.Fatal(err)
+	} else if received.Id != job.Id {
 		t.Fatal("received incorrect job after save")
 	} else if received.Data["Total"] != "12345" {
 		t.Fatal("data field was not retrieved successfully:", received.Data)
@@ -74,13 +72,14 @@ func testJobGetAllByType(t *testing.T, ss store.Store) {
 	}
 
 	for _, job := range jobs {
-		store.Must(ss.Job().Save(job))
+		_, err := ss.Job().Save(job)
+		require.Nil(t, err)
 		defer ss.Job().Delete(job.Id)
 	}
 
-	if result := <-ss.Job().GetAllByType(jobType); result.Err != nil {
-		t.Fatal(result.Err)
-	} else if received := result.Data.([]*model.Job); len(received) != 2 {
+	if received, err := ss.Job().GetAllByType(jobType); err != nil {
+		t.Fatal(err)
+	} else if len(received) != 2 {
 		t.Fatal("received wrong number of jobs")
 	} else if received[0].Id != jobs[0].Id && received[1].Id != jobs[0].Id {
 		t.Fatal("should've received first jobs")
@@ -116,13 +115,14 @@ func testJobGetAllByTypePage(t *testing.T, ss store.Store) {
 	}
 
 	for _, job := range jobs {
-		store.Must(ss.Job().Save(job))
+		_, err := ss.Job().Save(job)
+		require.Nil(t, err)
 		defer ss.Job().Delete(job.Id)
 	}
 
-	if result := <-ss.Job().GetAllByTypePage(jobType, 0, 2); result.Err != nil {
-		t.Fatal(result.Err)
-	} else if received := result.Data.([]*model.Job); len(received) != 2 {
+	if received, err := ss.Job().GetAllByTypePage(jobType, 0, 2); err != nil {
+		t.Fatal(err)
+	} else if len(received) != 2 {
 		t.Fatal("received wrong number of jobs")
 	} else if received[0].Id != jobs[2].Id {
 		t.Fatal("should've received newest job first")
@@ -130,9 +130,9 @@ func testJobGetAllByTypePage(t *testing.T, ss store.Store) {
 		t.Fatal("should've received second newest job second")
 	}
 
-	if result := <-ss.Job().GetAllByTypePage(jobType, 2, 2); result.Err != nil {
-		t.Fatal(result.Err)
-	} else if received := result.Data.([]*model.Job); len(received) != 1 {
+	if received, err := ss.Job().GetAllByTypePage(jobType, 2, 2); err != nil {
+		t.Fatal(err)
+	} else if len(received) != 1 {
 		t.Fatal("received wrong number of jobs")
 	} else if received[0].Id != jobs[1].Id {
 		t.Fatal("should've received oldest job last")
@@ -162,13 +162,14 @@ func testJobGetAllPage(t *testing.T, ss store.Store) {
 	}
 
 	for _, job := range jobs {
-		store.Must(ss.Job().Save(job))
+		_, err := ss.Job().Save(job)
+		require.Nil(t, err)
 		defer ss.Job().Delete(job.Id)
 	}
 
-	if result := <-ss.Job().GetAllPage(0, 2); result.Err != nil {
-		t.Fatal(result.Err)
-	} else if received := result.Data.([]*model.Job); len(received) != 2 {
+	if received, err := ss.Job().GetAllPage(0, 2); err != nil {
+		t.Fatal(err)
+	} else if len(received) != 2 {
 		t.Fatal("received wrong number of jobs")
 	} else if received[0].Id != jobs[2].Id {
 		t.Fatal("should've received newest job first")
@@ -176,9 +177,9 @@ func testJobGetAllPage(t *testing.T, ss store.Store) {
 		t.Fatal("should've received second newest job second")
 	}
 
-	if result := <-ss.Job().GetAllPage(2, 2); result.Err != nil {
-		t.Fatal(result.Err)
-	} else if received := result.Data.([]*model.Job); len(received) < 1 {
+	if received, err := ss.Job().GetAllPage(2, 2); err != nil {
+		t.Fatal(err)
+	} else if len(received) < 1 {
 		t.Fatal("received wrong number of jobs")
 	} else if received[0].Id != jobs[1].Id {
 		t.Fatal("should've received oldest job last")
@@ -220,13 +221,14 @@ func testJobGetAllByStatus(t *testing.T, ss store.Store) {
 	}
 
 	for _, job := range jobs {
-		store.Must(ss.Job().Save(job))
+		_, err := ss.Job().Save(job)
+		require.Nil(t, err)
 		defer ss.Job().Delete(job.Id)
 	}
 
-	if result := <-ss.Job().GetAllByStatus(status); result.Err != nil {
-		t.Fatal(result.Err)
-	} else if received := result.Data.([]*model.Job); len(received) != 3 {
+	if received, err := ss.Job().GetAllByStatus(status); err != nil {
+		t.Fatal(err)
+	} else if len(received) != 3 {
 		t.Fatal("received wrong number of jobs")
 	} else if received[0].Id != jobs[1].Id || received[1].Id != jobs[0].Id || received[2].Id != jobs[2].Id {
 		t.Fatal("should've received jobs ordered by CreateAt time")
@@ -269,17 +271,18 @@ func testJobStoreGetNewestJobByStatusAndType(t *testing.T, ss store.Store) {
 	}
 
 	for _, job := range jobs {
-		store.Must(ss.Job().Save(job))
+		_, err := ss.Job().Save(job)
+		require.Nil(t, err)
 		defer ss.Job().Delete(job.Id)
 	}
 
-	result := <-ss.Job().GetNewestJobByStatusAndType(status1, jobType1)
-	assert.Nil(t, result.Err)
-	assert.EqualValues(t, jobs[0].Id, result.Data.(*model.Job).Id)
+	received, err := ss.Job().GetNewestJobByStatusAndType(status1, jobType1)
+	assert.Nil(t, err)
+	assert.EqualValues(t, jobs[0].Id, received.Id)
 
-	result = <-ss.Job().GetNewestJobByStatusAndType(model.NewId(), model.NewId())
-	assert.Nil(t, result.Err)
-	assert.Nil(t, result.Data.(*model.Job))
+	received, err = ss.Job().GetNewestJobByStatusAndType(model.NewId(), model.NewId())
+	assert.Nil(t, err)
+	assert.Nil(t, received)
 }
 
 func testJobStoreGetCountByStatusAndType(t *testing.T, ss store.Store) {
@@ -316,25 +319,26 @@ func testJobStoreGetCountByStatusAndType(t *testing.T, ss store.Store) {
 	}
 
 	for _, job := range jobs {
-		store.Must(ss.Job().Save(job))
+		_, err := ss.Job().Save(job)
+		require.Nil(t, err)
 		defer ss.Job().Delete(job.Id)
 	}
 
-	result := <-ss.Job().GetCountByStatusAndType(status1, jobType1)
-	assert.Nil(t, result.Err)
-	assert.EqualValues(t, 2, result.Data.(int64))
+	count, err := ss.Job().GetCountByStatusAndType(status1, jobType1)
+	assert.Nil(t, err)
+	assert.EqualValues(t, 2, count)
 
-	result = <-ss.Job().GetCountByStatusAndType(status2, jobType2)
-	assert.Nil(t, result.Err)
-	assert.EqualValues(t, 0, result.Data.(int64))
+	count, err = ss.Job().GetCountByStatusAndType(status2, jobType2)
+	assert.Nil(t, err)
+	assert.EqualValues(t, 0, count)
 
-	result = <-ss.Job().GetCountByStatusAndType(status1, jobType2)
-	assert.Nil(t, result.Err)
-	assert.EqualValues(t, 1, result.Data.(int64))
+	count, err = ss.Job().GetCountByStatusAndType(status1, jobType2)
+	assert.Nil(t, err)
+	assert.EqualValues(t, 1, count)
 
-	result = <-ss.Job().GetCountByStatusAndType(status2, jobType1)
-	assert.Nil(t, result.Err)
-	assert.EqualValues(t, 1, result.Data.(int64))
+	count, err = ss.Job().GetCountByStatusAndType(status2, jobType1)
+	assert.Nil(t, err)
+	assert.EqualValues(t, 1, count)
 }
 
 func testJobUpdateOptimistically(t *testing.T, ss store.Store) {
@@ -345,9 +349,8 @@ func testJobUpdateOptimistically(t *testing.T, ss store.Store) {
 		Status:   model.JOB_STATUS_PENDING,
 	}
 
-	if result := <-ss.Job().Save(job); result.Err != nil {
-		t.Fatal(result.Err)
-	}
+	_, err := ss.Job().Save(job)
+	require.Nil(t, err)
 	defer ss.Job().Delete(job.Id)
 
 	job.LastActivityAt = model.GetMillis()
@@ -357,34 +360,24 @@ func testJobUpdateOptimistically(t *testing.T, ss store.Store) {
 		"Foo": "Bar",
 	}
 
-	if result := <-ss.Job().UpdateOptimistically(job, model.JOB_STATUS_SUCCESS); result.Err != nil {
-		if result.Data.(bool) {
+	if updated, err2 := ss.Job().UpdateOptimistically(job, model.JOB_STATUS_SUCCESS); err2 != nil {
+		if updated {
 			t.Fatal("should have failed due to incorrect old status")
 		}
 	}
 
 	time.Sleep(2 * time.Millisecond)
 
-	if result := <-ss.Job().UpdateOptimistically(job, model.JOB_STATUS_PENDING); result.Err != nil {
-		t.Fatal(result.Err)
-	} else {
-		if !result.Data.(bool) {
-			t.Fatal("Should have successfully updated")
-		}
+	updated, err := ss.Job().UpdateOptimistically(job, model.JOB_STATUS_PENDING)
+	require.Nil(t, err)
+	require.True(t, updated)
 
-		var updatedJob *model.Job
+	updatedJob, err := ss.Job().Get(job.Id)
+	require.Nil(t, err)
 
-		if result := <-ss.Job().Get(job.Id); result.Err != nil {
-			t.Fatal(result.Err)
-		} else {
-			updatedJob = result.Data.(*model.Job)
-		}
-
-		if updatedJob.Type != job.Type || updatedJob.CreateAt != job.CreateAt || updatedJob.Status != job.Status || updatedJob.LastActivityAt <= job.LastActivityAt || updatedJob.Progress != job.Progress || updatedJob.Data["Foo"] != job.Data["Foo"] {
-			t.Fatal("Some update property was not as expected")
-		}
+	if updatedJob.Type != job.Type || updatedJob.CreateAt != job.CreateAt || updatedJob.Status != job.Status || updatedJob.LastActivityAt <= job.LastActivityAt || updatedJob.Progress != job.Progress || updatedJob.Data["Foo"] != job.Data["Foo"] {
+		t.Fatal("Some update property was not as expected")
 	}
-
 }
 
 func testJobUpdateStatusUpdateStatusOptimistically(t *testing.T, ss store.Store) {
@@ -396,111 +389,85 @@ func testJobUpdateStatusUpdateStatusOptimistically(t *testing.T, ss store.Store)
 	}
 
 	var lastUpdateAt int64
-	if result := <-ss.Job().Save(job); result.Err != nil {
-		t.Fatal(result.Err)
-	} else {
-		lastUpdateAt = result.Data.(*model.Job).LastActivityAt
-	}
+	received, err := ss.Job().Save(job)
+	require.Nil(t, err)
+	lastUpdateAt = received.LastActivityAt
 
 	defer ss.Job().Delete(job.Id)
 
 	time.Sleep(2 * time.Millisecond)
 
-	if result := <-ss.Job().UpdateStatus(job.Id, model.JOB_STATUS_PENDING); result.Err != nil {
-		t.Fatal(result.Err)
-	} else {
-		received := result.Data.(*model.Job)
-		if received.Status != model.JOB_STATUS_PENDING {
-			t.Fatal("status wasn't updated")
-		}
-		if received.LastActivityAt <= lastUpdateAt {
-			t.Fatal("lastActivityAt wasn't updated")
-		}
-		lastUpdateAt = received.LastActivityAt
+	received, err = ss.Job().UpdateStatus(job.Id, model.JOB_STATUS_PENDING)
+	require.Nil(t, err)
+
+	if received.Status != model.JOB_STATUS_PENDING {
+		t.Fatal("status wasn't updated")
+	}
+	if received.LastActivityAt <= lastUpdateAt {
+		t.Fatal("lastActivityAt wasn't updated")
+	}
+	lastUpdateAt = received.LastActivityAt
+
+	time.Sleep(2 * time.Millisecond)
+
+	updated, err := ss.Job().UpdateStatusOptimistically(job.Id, model.JOB_STATUS_IN_PROGRESS, model.JOB_STATUS_SUCCESS)
+	require.Nil(t, err)
+	require.False(t, updated)
+
+	received, err = ss.Job().Get(job.Id)
+	require.Nil(t, err)
+
+	if received.Status != model.JOB_STATUS_PENDING {
+		t.Fatal("should still be pending")
+	}
+	if received.LastActivityAt != lastUpdateAt {
+		t.Fatal("last activity at shouldn't have changed")
 	}
 
 	time.Sleep(2 * time.Millisecond)
 
-	if result := <-ss.Job().UpdateStatusOptimistically(job.Id, model.JOB_STATUS_IN_PROGRESS, model.JOB_STATUS_SUCCESS); result.Err != nil {
-		t.Fatal(result.Err)
-	} else {
-		if result.Data.(bool) {
-			t.Fatal("should be false due to incorrect original status")
-		}
-	}
-
-	if result := <-ss.Job().Get(job.Id); result.Err != nil {
-		t.Fatal(result.Err)
-	} else {
-		received := result.Data.(*model.Job)
-		if received.Status != model.JOB_STATUS_PENDING {
-			t.Fatal("should still be pending")
-		}
-		if received.LastActivityAt != lastUpdateAt {
-			t.Fatal("last activity at shouldn't have changed")
-		}
-	}
-
-	time.Sleep(2 * time.Millisecond)
-
-	if result := <-ss.Job().UpdateStatusOptimistically(job.Id, model.JOB_STATUS_PENDING, model.JOB_STATUS_IN_PROGRESS); result.Err != nil {
-		t.Fatal(result.Err)
-	} else {
-		if !result.Data.(bool) {
-			t.Fatal("should have succeeded")
-		}
-	}
+	updated, err = ss.Job().UpdateStatusOptimistically(job.Id, model.JOB_STATUS_PENDING, model.JOB_STATUS_IN_PROGRESS)
+	require.Nil(t, err)
+	require.True(t, updated, "should have succeeded")
 
 	var startAtSet int64
-	if result := <-ss.Job().Get(job.Id); result.Err != nil {
-		t.Fatal(result.Err)
-	} else {
-		received := result.Data.(*model.Job)
-		if received.Status != model.JOB_STATUS_IN_PROGRESS {
-			t.Fatal("should be in progress")
-		}
-		if received.StartAt == 0 {
-			t.Fatal("received should have start at set")
-		}
-		if received.LastActivityAt <= lastUpdateAt {
-			t.Fatal("lastActivityAt wasn't updated")
-		}
-		lastUpdateAt = received.LastActivityAt
-		startAtSet = received.StartAt
+	received, err = ss.Job().Get(job.Id)
+	require.Nil(t, err)
+	if received.Status != model.JOB_STATUS_IN_PROGRESS {
+		t.Fatal("should be in progress")
 	}
+	if received.StartAt == 0 {
+		t.Fatal("received should have start at set")
+	}
+	if received.LastActivityAt <= lastUpdateAt {
+		t.Fatal("lastActivityAt wasn't updated")
+	}
+	lastUpdateAt = received.LastActivityAt
+	startAtSet = received.StartAt
 
 	time.Sleep(2 * time.Millisecond)
 
-	if result := <-ss.Job().UpdateStatusOptimistically(job.Id, model.JOB_STATUS_IN_PROGRESS, model.JOB_STATUS_SUCCESS); result.Err != nil {
-		t.Fatal(result.Err)
-	} else {
-		if !result.Data.(bool) {
-			t.Fatal("should have succeeded")
-		}
-	}
+	updated, err = ss.Job().UpdateStatusOptimistically(job.Id, model.JOB_STATUS_IN_PROGRESS, model.JOB_STATUS_SUCCESS)
+	require.Nil(t, err)
+	require.True(t, updated, "should have succeeded")
 
-	if result := <-ss.Job().Get(job.Id); result.Err != nil {
-		t.Fatal(result.Err)
-	} else {
-		received := result.Data.(*model.Job)
-		if received.Status != model.JOB_STATUS_SUCCESS {
-			t.Fatal("should be success status")
-		}
-		if received.StartAt != startAtSet {
-			t.Fatal("startAt should not have changed")
-		}
-		if received.LastActivityAt <= lastUpdateAt {
-			t.Fatal("lastActivityAt wasn't updated")
-		}
+	received, err = ss.Job().Get(job.Id)
+	require.Nil(t, err)
+	if received.Status != model.JOB_STATUS_SUCCESS {
+		t.Fatal("should be success status")
+	}
+	if received.StartAt != startAtSet {
+		t.Fatal("startAt should not have changed")
+	}
+	if received.LastActivityAt <= lastUpdateAt {
+		t.Fatal("lastActivityAt wasn't updated")
 	}
 }
 
 func testJobDelete(t *testing.T, ss store.Store) {
-	job := store.Must(ss.Job().Save(&model.Job{
-		Id: model.NewId(),
-	})).(*model.Job)
+	job, err := ss.Job().Save(&model.Job{Id: model.NewId()})
+	require.Nil(t, err)
 
-	if result := <-ss.Job().Delete(job.Id); result.Err != nil {
-		t.Fatal(result.Err)
-	}
+	_, err = ss.Job().Delete(job.Id)
+	assert.Nil(t, err)
 }

store/storetest/mocks/JobStore.go

@@ -6,7 +6,6 @@ package mocks
 
 import mock "github.com/stretchr/testify/mock"
 import model "github.com/mattermost/mattermost-server/model"
-import store "github.com/mattermost/mattermost-server/store"
 
 // JobStore is an autogenerated mock type for the JobStore type
 type JobStore struct {
@@ -14,193 +13,293 @@ type JobStore struct {
 }
 
 // Delete provides a mock function with given fields: id
-func (_m *JobStore) Delete(id string) store.StoreChannel {
+func (_m *JobStore) Delete(id string) (string, *model.AppError) {
 	ret := _m.Called(id)
 
-	var r0 store.StoreChannel
-	if rf, ok := ret.Get(0).(func(string) store.StoreChannel); ok {
+	var r0 string
+	if rf, ok := ret.Get(0).(func(string) string); ok {
 		r0 = rf(id)
 	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(store.StoreChannel)
+		r0 = ret.Get(0).(string)
+	}
+
+	var r1 *model.AppError
+	if rf, ok := ret.Get(1).(func(string) *model.AppError); ok {
+		r1 = rf(id)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).(*model.AppError)
 		}
 	}
 
-	return r0
+	return r0, r1
 }
 
 // Get provides a mock function with given fields: id
-func (_m *JobStore) Get(id string) store.StoreChannel {
+func (_m *JobStore) Get(id string) (*model.Job, *model.AppError) {
 	ret := _m.Called(id)
 
-	var r0 store.StoreChannel
-	if rf, ok := ret.Get(0).(func(string) store.StoreChannel); ok {
+	var r0 *model.Job
+	if rf, ok := ret.Get(0).(func(string) *model.Job); ok {
 		r0 = rf(id)
 	} else {
 		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(store.StoreChannel)
+			r0 = ret.Get(0).(*model.Job)
 		}
 	}
 
-	return r0
+	var r1 *model.AppError
+	if rf, ok := ret.Get(1).(func(string) *model.AppError); ok {
+		r1 = rf(id)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).(*model.AppError)
+		}
+	}
+
+	return r0, r1
 }
 
 // GetAllByStatus provides a mock function with given fields: status
-func (_m *JobStore) GetAllByStatus(status string) store.StoreChannel {
+func (_m *JobStore) GetAllByStatus(status string) ([]*model.Job, *model.AppError) {
 	ret := _m.Called(status)
 
-	var r0 store.StoreChannel
-	if rf, ok := ret.Get(0).(func(string) store.StoreChannel); ok {
+	var r0 []*model.Job
+	if rf, ok := ret.Get(0).(func(string) []*model.Job); ok {
 		r0 = rf(status)
 	} else {
 		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(store.StoreChannel)
+			r0 = ret.Get(0).([]*model.Job)
 		}
 	}
 
-	return r0
+	var r1 *model.AppError
+	if rf, ok := ret.Get(1).(func(string) *model.AppError); ok {
+		r1 = rf(status)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).(*model.AppError)
+		}
+	}
+
+	return r0, r1
 }
 
 // GetAllByType provides a mock function with given fields: jobType
-func (_m *JobStore) GetAllByType(jobType string) store.StoreChannel {
+func (_m *JobStore) GetAllByType(jobType string) ([]*model.Job, *model.AppError) {
 	ret := _m.Called(jobType)
 
-	var r0 store.StoreChannel
-	if rf, ok := ret.Get(0).(func(string) store.StoreChannel); ok {
+	var r0 []*model.Job
+	if rf, ok := ret.Get(0).(func(string) []*model.Job); ok {
 		r0 = rf(jobType)
 	} else {
 		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(store.StoreChannel)
+			r0 = ret.Get(0).([]*model.Job)
 		}
 	}
 
-	return r0
+	var r1 *model.AppError
+	if rf, ok := ret.Get(1).(func(string) *model.AppError); ok {
+		r1 = rf(jobType)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).(*model.AppError)
+		}
+	}
+
+	return r0, r1
 }
 
 // GetAllByTypePage provides a mock function with given fields: jobType, offset, limit
-func (_m *JobStore) GetAllByTypePage(jobType string, offset int, limit int) store.StoreChannel {
+func (_m *JobStore) GetAllByTypePage(jobType string, offset int, limit int) ([]*model.Job, *model.AppError) {
 	ret := _m.Called(jobType, offset, limit)
 
-	var r0 store.StoreChannel
-	if rf, ok := ret.Get(0).(func(string, int, int) store.StoreChannel); ok {
+	var r0 []*model.Job
+	if rf, ok := ret.Get(0).(func(string, int, int) []*model.Job); ok {
 		r0 = rf(jobType, offset, limit)
 	} else {
 		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(store.StoreChannel)
+			r0 = ret.Get(0).([]*model.Job)
 		}
 	}
 
-	return r0
+	var r1 *model.AppError
+	if rf, ok := ret.Get(1).(func(string, int, int) *model.AppError); ok {
+		r1 = rf(jobType, offset, limit)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).(*model.AppError)
+		}
+	}
+
+	return r0, r1
 }
 
 // GetAllPage provides a mock function with given fields: offset, limit
-func (_m *JobStore) GetAllPage(offset int, limit int) store.StoreChannel {
+func (_m *JobStore) GetAllPage(offset int, limit int) ([]*model.Job, *model.AppError) {
 	ret := _m.Called(offset, limit)
 
-	var r0 store.StoreChannel
-	if rf, ok := ret.Get(0).(func(int, int) store.StoreChannel); ok {
+	var r0 []*model.Job
+	if rf, ok := ret.Get(0).(func(int, int) []*model.Job); ok {
 		r0 = rf(offset, limit)
 	} else {
 		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(store.StoreChannel)
+			r0 = ret.Get(0).([]*model.Job)
 		}
 	}
 
-	return r0
+	var r1 *model.AppError
+	if rf, ok := ret.Get(1).(func(int, int) *model.AppError); ok {
+		r1 = rf(offset, limit)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).(*model.AppError)
+		}
+	}
+
+	return r0, r1
 }
 
 // GetCountByStatusAndType provides a mock function with given fields: status, jobType
-func (_m *JobStore) GetCountByStatusAndType(status string, jobType string) store.StoreChannel {
+func (_m *JobStore) GetCountByStatusAndType(status string, jobType string) (int64, *model.AppError) {
 	ret := _m.Called(status, jobType)
 
-	var r0 store.StoreChannel
-	if rf, ok := ret.Get(0).(func(string, string) store.StoreChannel); ok {
+	var r0 int64
+	if rf, ok := ret.Get(0).(func(string, string) int64); ok {
 		r0 = rf(status, jobType)
 	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(store.StoreChannel)
+		r0 = ret.Get(0).(int64)
+	}
+
+	var r1 *model.AppError
+	if rf, ok := ret.Get(1).(func(string, string) *model.AppError); ok {
+		r1 = rf(status, jobType)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).(*model.AppError)
 		}
 	}
 
-	return r0
+	return r0, r1
 }
 
 // GetNewestJobByStatusAndType provides a mock function with given fields: status, jobType
-func (_m *JobStore) GetNewestJobByStatusAndType(status string, jobType string) store.StoreChannel {
+func (_m *JobStore) GetNewestJobByStatusAndType(status string, jobType string) (*model.Job, *model.AppError) {
 	ret := _m.Called(status, jobType)
 
-	var r0 store.StoreChannel
-	if rf, ok := ret.Get(0).(func(string, string) store.StoreChannel); ok {
+	var r0 *model.Job
+	if rf, ok := ret.Get(0).(func(string, string) *model.Job); ok {
 		r0 = rf(status, jobType)
 	} else {
 		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(store.StoreChannel)
+			r0 = ret.Get(0).(*model.Job)
 		}
 	}
 
-	return r0
+	var r1 *model.AppError
+	if rf, ok := ret.Get(1).(func(string, string) *model.AppError); ok {
+		r1 = rf(status, jobType)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).(*model.AppError)
+		}
+	}
+
+	return r0, r1
 }
 
 // Save provides a mock function with given fields: job
-func (_m *JobStore) Save(job *model.Job) store.StoreChannel {
+func (_m *JobStore) Save(job *model.Job) (*model.Job, *model.AppError) {
 	ret := _m.Called(job)
 
-	var r0 store.StoreChannel
-	if rf, ok := ret.Get(0).(func(*model.Job) store.StoreChannel); ok {
+	var r0 *model.Job
+	if rf, ok := ret.Get(0).(func(*model.Job) *model.Job); ok {
 		r0 = rf(job)
 	} else {
 		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(store.StoreChannel)
+			r0 = ret.Get(0).(*model.Job)
 		}
 	}
 
-	return r0
+	var r1 *model.AppError
+	if rf, ok := ret.Get(1).(func(*model.Job) *model.AppError); ok {
+		r1 = rf(job)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).(*model.AppError)
+		}
+	}
+
+	return r0, r1
 }
 
 // UpdateOptimistically provides a mock function with given fields: job, currentStatus
-func (_m *JobStore) UpdateOptimistically(job *model.Job, currentStatus string) store.StoreChannel {
+func (_m *JobStore) UpdateOptimistically(job *model.Job, currentStatus string) (bool, *model.AppError) {
 	ret := _m.Called(job, currentStatus)
 
-	var r0 store.StoreChannel
-	if rf, ok := ret.Get(0).(func(*model.Job, string) store.StoreChannel); ok {
+	var r0 bool
+	if rf, ok := ret.Get(0).(func(*model.Job, string) bool); ok {
 		r0 = rf(job, currentStatus)
 	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(store.StoreChannel)
+		r0 = ret.Get(0).(bool)
+	}
+
+	var r1 *model.AppError
+	if rf, ok := ret.Get(1).(func(*model.Job, string) *model.AppError); ok {
+		r1 = rf(job, currentStatus)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).(*model.AppError)
 		}
 	}
 
-	return r0
+	return r0, r1
 }
 
 // UpdateStatus provides a mock function with given fields: id, status
-func (_m *JobStore) UpdateStatus(id string, status string) store.StoreChannel {
+func (_m *JobStore) UpdateStatus(id string, status string) (*model.Job, *model.AppError) {
 	ret := _m.Called(id, status)
 
-	var r0 store.StoreChannel
-	if rf, ok := ret.Get(0).(func(string, string) store.StoreChannel); ok {
+	var r0 *model.Job
+	if rf, ok := ret.Get(0).(func(string, string) *model.Job); ok {
 		r0 = rf(id, status)
 	} else {
 		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(store.StoreChannel)
+			r0 = ret.Get(0).(*model.Job)
 		}
 	}
 
-	return r0
+	var r1 *model.AppError
+	if rf, ok := ret.Get(1).(func(string, string) *model.AppError); ok {
+		r1 = rf(id, status)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).(*model.AppError)
+		}
+	}
+
+	return r0, r1
 }
 
 // UpdateStatusOptimistically provides a mock function with given fields: id, currentStatus, newStatus
-func (_m *JobStore) UpdateStatusOptimistically(id string, currentStatus string, newStatus string) store.StoreChannel {
+func (_m *JobStore) UpdateStatusOptimistically(id string, currentStatus string, newStatus string) (bool, *model.AppError) {
 	ret := _m.Called(id, currentStatus, newStatus)
 
-	var r0 store.StoreChannel
-	if rf, ok := ret.Get(0).(func(string, string, string) store.StoreChannel); ok {
+	var r0 bool
+	if rf, ok := ret.Get(0).(func(string, string, string) bool); ok {
 		r0 = rf(id, currentStatus, newStatus)
 	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(store.StoreChannel)
+		r0 = ret.Get(0).(bool)
+	}
+
+	var r1 *model.AppError
+	if rf, ok := ret.Get(1).(func(string, string, string) *model.AppError); ok {
+		r1 = rf(id, currentStatus, newStatus)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).(*model.AppError)
 		}
 	}
 
-	return r0
+	return r0, r1
 }