Update group_grade.go

domain/model/groupPower_m/group_grade.go

@@ -94,6 +94,9 @@ func IncrGroupPowerExp(txModel *domain.Model, groupPowerId mysql.ID, exp mysql.N
 			Grade:        0,
 			ExpireAt:     time.Time{},
 		}
+		if err = txModel.DB().Create(gpg).Error; err != nil {
+			return err
+		}
 	}
 	if err := txModel.DB().Model(GroupPowerGrade{}).Where("group_power_id = ?", groupPowerId).
 		UpdateColumn("exp", gorm.Expr("exp + ?", exp)).Error; err != nil {