added caching of signed in user DB calls

pkg/services/sqlstore/sqlstore.go

@@ -16,6 +16,7 @@ import (
 	m "github.com/grafana/grafana/pkg/models"
 	"github.com/grafana/grafana/pkg/registry"
 	"github.com/grafana/grafana/pkg/services/annotations"
+	"github.com/grafana/grafana/pkg/services/cache"
 	"github.com/grafana/grafana/pkg/services/sqlstore/migrations"
 	"github.com/grafana/grafana/pkg/services/sqlstore/migrator"
 	"github.com/grafana/grafana/pkg/services/sqlstore/sqlutil"
@@ -47,8 +48,9 @@ func init() {
 }
 
 type SqlStore struct {
-	Cfg *setting.Cfg `inject:""`
-	Bus bus.Bus      `inject:""`
+	Cfg          *setting.Cfg        `inject:""`
+	Bus          bus.Bus             `inject:""`
+	CacheService *cache.CacheService `inject:""`
 
 	dbCfg           DatabaseConfig
 	engine          *xorm.Engine
@@ -148,9 +150,11 @@ func (ss *SqlStore) Init() error {
 
 	// Init repo instances
 	annotations.SetRepository(&SqlAnnotationRepo{})
-
 	ss.Bus.SetTransactionManager(ss)
 
+	// Register handlers
+	ss.addUserQueryAndCommandHandlers()
+
 	// ensure admin user
 	if ss.skipEnsureAdmin {
 		return nil