func TestOAuthStoreUpdateApp(t *testing.T) {
	Setup()

	a1 := model.OAuthApp{}
	a1.CreatorId = model.NewId()
	a1.Name = "TestApp" + model.NewId()
	a1.CallbackUrls = []string{"https://nowhere.com"}
	a1.Homepage = "https://nowhere.com"
	Must(store.OAuth().SaveApp(&a1))

	a1.CreateAt = 1
	a1.ClientSecret = "pwd"
	a1.CreatorId = "12345678901234567890123456"
	a1.Name = "NewName"
	if result := <-store.OAuth().UpdateApp(&a1); result.Err != nil {
		t.Fatal(result.Err)
	} else {
		ua1 := (result.Data.([2]*model.OAuthApp)[0])
		if ua1.Name != "NewName" {
			t.Fatal("name did not update")
		}
		if ua1.CreateAt == 1 {
			t.Fatal("create at should not have updated")
		}
		if ua1.CreatorId == "12345678901234567890123456" {
			t.Fatal("creator id should not have updated")
		}
	}
}
func (as SqlOAuthStore) UpdateApp(app *model.OAuthApp) StoreChannel {

	storeChannel := make(StoreChannel)

	go func() {
		result := StoreResult{}

		app.PreUpdate()

		if result.Err = app.IsValid(); result.Err != nil {
			storeChannel <- result
			close(storeChannel)
			return
		}

		if oldAppResult, err := as.GetMaster().Get(model.OAuthApp{}, app.Id); err != nil {
			result.Err = model.NewLocAppError("SqlOAuthStore.UpdateApp", "store.sql_oauth.update_app.finding.app_error", nil, "app_id="+app.Id+", "+err.Error())
		} else if oldAppResult == nil {
			result.Err = model.NewLocAppError("SqlOAuthStore.UpdateApp", "store.sql_oauth.update_app.find.app_error", nil, "app_id="+app.Id)
		} else {
			oldApp := oldAppResult.(*model.OAuthApp)
			app.CreateAt = oldApp.CreateAt
			app.ClientSecret = oldApp.ClientSecret
			app.CreatorId = oldApp.CreatorId

			if count, err := as.GetMaster().Update(app); err != nil {
				result.Err = model.NewLocAppError("SqlOAuthStore.UpdateApp", "store.sql_oauth.update_app.updating.app_error", nil, "app_id="+app.Id+", "+err.Error())
			} else if count != 1 {
				result.Err = model.NewLocAppError("SqlOAuthStore.UpdateApp", "store.sql_oauth.update_app.update.app_error", nil, "app_id="+app.Id)
			} else {
				result.Data = [2]*model.OAuthApp{app, oldApp}
			}
		}

		storeChannel <- result
		close(storeChannel)
	}()

	return storeChannel
}
func (as SqlOAuthStore) UpdateApp(app *model.OAuthApp) StoreChannel {

	storeChannel := make(StoreChannel)

	go func() {
		result := StoreResult{}

		app.PreUpdate()

		if result.Err = app.IsValid(); result.Err != nil {
			storeChannel <- result
			close(storeChannel)
			return
		}

		if oldAppResult, err := as.GetMaster().Get(model.OAuthApp{}, app.Id); err != nil {
			result.Err = model.NewAppError("SqlOAuthStore.UpdateApp", "We encountered an error finding the app", "app_id="+app.Id+", "+err.Error())
		} else if oldAppResult == nil {
			result.Err = model.NewAppError("SqlOAuthStore.UpdateApp", "We couldn't find the existing app to update", "app_id="+app.Id)
		} else {
			oldApp := oldAppResult.(*model.OAuthApp)
			app.CreateAt = oldApp.CreateAt
			app.ClientSecret = oldApp.ClientSecret
			app.CreatorId = oldApp.CreatorId

			if count, err := as.GetMaster().Update(app); err != nil {
				result.Err = model.NewAppError("SqlOAuthStore.UpdateApp", "We encountered an error updating the app", "app_id="+app.Id+", "+err.Error())
			} else if count != 1 {
				result.Err = model.NewAppError("SqlOAuthStore.UpdateApp", "We couldn't update the app", "app_id="+app.Id)
			} else {
				result.Data = [2]*model.OAuthApp{app, oldApp}
			}
		}

		storeChannel <- result
		close(storeChannel)
	}()

	return storeChannel
}