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[Go 编程语言] Gorm 格式化时间这样处理可行不可行

发表于
时间结构体
type UseDateTime struct {
  	CreatedAt    *time.Time `json:"-"`
	CreatedAtStr string     `json:"created_at" gorm:"-"`
	UpdatedAt    *time.Time `json:"-"`
	UpdatedAtStr string     `json:"updated_at" gorm:"-"`
}

结构体多添加两个字段 CreatedAtStrUpdatedAtStr用 Tag 来控制不参与存储

使用 Gorm 自带的 Hook AfterFind

func (u *UseDateTime) AfterFind(tx *gorm.DB) (err error) {
	if u.CreatedAt != nil {
		u.CreatedAtStr = u.CreatedAt.Format("2006-01-02 15:04:05")
	}
	if u.UpdatedAt != nil {
		u.UpdatedAtStr = u.UpdatedAt.Format("2006-01-02 15:04:05")
	}
	return
}

最终输出

{
  "code": 200,
  "data": [
    {
      "id": 1,
      "username": "admin",
      "created_at": "2019-10-29 00:28:05",
      "updated_at": "2024-06-13 14:09:15"
    }
  ]
}

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