Fix bug what updating user quota doesn't work

Reason is same as 061e06c226095a8279a53646451274276463121b

pkg/services/sqlstore/quota.go

@@ -201,14 +201,14 @@ func UpdateUserQuota(cmd *m.UpdateUserQuotaCmd) error {
 	return inTransaction(func(sess *DBSession) error {
 		//Check if quota is already defined in the DB
 		quota := m.Quota{
-			Target:  cmd.Target,
-			UserId:  cmd.UserId,
-			Updated: time.Now(),
+			Target: cmd.Target,
+			UserId: cmd.UserId,
 		}
 		has, err := sess.Get(&quota)
 		if err != nil {
 			return err
 		}
+		quota.Updated = time.Now()
 		quota.Limit = cmd.Limit
 		if !has {
 			quota.Created = time.Now()

pkg/services/sqlstore/quota_test.go

@@ -200,5 +200,36 @@ func TestQuotaCommandsAndQueries(t *testing.T) {
 			So(err, ShouldBeNil)
 			So(query.Result.Limit, ShouldEqual, 10)
 		})
+
+		Convey("Should user quota updating is successful even if it called multiple time", func() {
+			userQuotaCmd := m.UpdateUserQuotaCmd{
+				UserId: userId,
+				Target: "org_user",
+				Limit:  5,
+			}
+			err := UpdateUserQuota(&userQuotaCmd)
+			So(err, ShouldBeNil)
+
+			query := m.GetUserQuotaByTargetQuery{UserId: userId, Target: "org_user", Default: 1}
+			err = GetUserQuotaByTarget(&query)
+			So(err, ShouldBeNil)
+			So(query.Result.Limit, ShouldEqual, 5)
+
+			// XXX: resolution of `Updated` column is 1sec, so this makes delay
+			time.Sleep(1 * time.Second)
+
+			userQuotaCmd = m.UpdateUserQuotaCmd{
+				UserId: userId,
+				Target: "org_user",
+				Limit:  10,
+			}
+			err = UpdateUserQuota(&userQuotaCmd)
+			So(err, ShouldBeNil)
+
+			query = m.GetUserQuotaByTargetQuery{UserId: userId, Target: "org_user", Default: 1}
+			err = GetUserQuotaByTarget(&query)
+			So(err, ShouldBeNil)
+			So(query.Result.Limit, ShouldEqual, 10)
+		})
 	})
 }