userservice.getuser() { 

    userdao.FetchByID(UID) 

}       

userdao.fetchByID(uid uint64) *Userstruct  {

    return db.where("uid = ?").find.bindtostruct()

}

type UserApiSignUpReq struct {
    Passport  string `v:"required|length:6,16#账号不能为空|账号长度应当在:min到:max之间"`
    Password  string `v:"required|length:6,16#请输入确认密码|密码长度应当在:min到:max之间"`
    Password2 string `v:"required|length:6,16|same:Password#密码不能为空|密码长度应当在:min到:max之间|两次密码输入不相等"`
    Nickname  string
}

type User struct {
	g.Meta    `orm:"table:sys_user, do:true"`
	Id        interface{} `column:"id"`   // ID
	Name      interface{} `column:"name"` // 姓名
}

package internal

import (
	"context"

	"github.com/gogf/gf/v2/database/gdb"
	"github.com/gogf/gf/v2/frame/g"
)

type Dao interface {
	DB() gdb.DB
	Table() string
	Group() string
	Ctx(context.Context) *gdb.Model
	Transaction(context.Context, func(context.Context, *gdb.TX) error) error
}

type BaseDao struct {
	table string
	group string
}

func NewDao(table string, group ...string) Dao {
	if len(group) > 0 {
		return &BaseDao{group: group[0], table: table}
	} else {
		return &BaseDao{group: "default", table: table}
	}
}

func (dao *BaseDao) DB() gdb.DB {
	return g.DB(dao.group)
}

func (dao *BaseDao) Table() string {
	return dao.table
}

func (dao *BaseDao) Group() string {
	return dao.group
}

func (dao *BaseDao) Ctx(ctx context.Context) *gdb.Model {
	return dao.DB().Model(dao.table).Safe().Ctx(ctx)
}

func (dao *BaseDao) Transaction(ctx context.Context, f func(ctx context.Context, tx *gdb.TX) error) (err error) {
	return dao.Ctx(ctx).Transaction(ctx, f)
}

package dao

import "mydemo/internal/service/internal/dao/internal"

type userDao struct {
	internal.Dao
}

var (
	User = userDao{
		internal.NewDao("sys_user", "default"),
	}
)