gorm 结构体 预加载

结构体构建

type PlansApproval struct {

    ID          uint
    Plans_Id    int    //plans编号
    UpdateUser  int    //更新者
    Approval    string //批示内容
    Record_date time.Time
    CreateUser  int
    ProfileID   int
    Profile     Profile `gorm:"ForeignKey:ProfileID;AssociationForeignKey:ID;"`

    PlansApprovalsReply []PlansApprovalsReply `gorm:"ForeignKey:ID;AssociationForeignKey:ID;"`
}
type PlansApprovalsReply struct {
    ID                            int
    Plans_id                      int
    Plans_approvals_reply_content string
    Plans_approvals_reply_date    time.Time
    Plans_approvals_reply_user    int
    User                          User `gorm:"ForeignKey:Plans_approvals_reply_user;AssociationForeignKey:ID"`
}
type PlansComment struct {
    ID                 uint
    Plans_Id           int //plans编号
    CreateUser         int
    UpdateUser         int //更新者
    Record_date        time.Time
    Comment            string //评论内容
    ProfileID          int
    Profile            Profile              `gorm:"ForeignKey:ProfileID;AssociationForeignKey:ID"`
    User               User                 `gorm:"ForeignKey:ProfileID;AssociationForeignKey:ID"`
    PlansCommentsReply []PlansCommentsReply `gorm:"ForeignKey:ID;AssociationForeignKey:ID;"`
}
type PlansCommentsReply struct {
    ID                          int
    Plans_id                    uint
    Plans_comment_reply_content string
    Plans_comment_reply_date    time.Time
    Plans_comment_reply_user    int
    User                        User `gorm:"ForeignKey:Plans_comment_reply_user;AssociationForeignKey:ID"`
}
type User struct {
    gorm.Model
    Username   string
    Avatar     string `gorm:"default:'/img/user.jpg'"`
    Profile_id int
}

type Profile struct {
    gorm.Model
    Realname    string    `form:"Realname" json:"Realname"`
    Sex         int       `form:"Sex" json:"Sex,string"`
    Birth       time.Time `form:"Birth" json:"Birth" time_format:"2006-01-02"`
    Email       string    `form:"Email" json:"Email"`
    Webchat     string    `form:"Webchat" json:"Webchat"`
    Qq          string    `form:"Qq" json:"Qq"`
    Phone       string    `form:"Phone" json:"Phone"`
    Tel         string    `form:"Tel" json:"Tel"`
    Address     string    `form:"Address" json:"Address"`
    Emercontact string    `form:"Emercontact" json:"Emercontact"`
    Emerphone   string    `form:"Emerphone" json:"Emerphone"`
    Departid    int64
    Positionid  int64
    Lognum      int
    Ip          string
    Lasted      int64
    Depart      Depart `gorm:"ForeignKey:Departid;AssociationForeignKey:ID"`
    User        User   `gorm:"ForeignKey:ID;AssociationForeignKey:ID;"`
}

type Depart struct {
    ID   int
    Name string
    Desc string
}

预加载
func GetPlansCommentByPlansidList(p PlansComment, q util.Query) (results map[string]interface{}, err error) {
    results = make(map[string]interface{})

    var pc []PlansComment

    pc = make([]PlansComment, 0)

    var total int

    err = db.Orm.Debug().Preload("Profile.Depart").Preload("PlansCommentsReply.User").Preload("Profile.User").First(&pc, p.CreateUser).Where("plans_id = ?", p.Plans_Id).Find(&pc).Error

    db.Orm.Table("plans_comments").Where("plans_id = ?", p.Plans_Id).Where("deleted_at IS NULL").Count(&total)



    results["items"] = pc

    results["total"] = total



    return results, err



}



原文地址:https://www.cnblogs.com/jason-davis/p/9084217.html