package models import ( "strconv" ) type User_role struct{ UserId string `json:"user_id"` RoleId uint `json:"role_id"` } func FindRoleByUserId(userId interface{})User_role{ var uRole User_role DB.Where("user_id = ?", userId).First(&uRole) return uRole } func CreateUserRole(userId uint,roleId uint){ uRole:=&User_role{ UserId:strconv.Itoa(int(userId)), RoleId: roleId, } DB.Create(uRole) }