LAPP_MY_BACKEND/web/models/subject_category.go

package models

import (
	"lapp_-wy/db"
	"lapp_-wy/utils"
	"errors"
	"xorm.io/core"
)

type SubjectCategory struct {
	Cid               int    `json:"cid" xorm:"not null pk INT(11)"`
	SubjectCategoryid string `json:"subject_categoryid" xorm:"not null pk comment('问题类别ID') VARCHAR(20)"`
	Descr             string `json:"descr" xorm:"not null comment('类别描述') VARCHAR(60)"`
	CatparaS1         string `json:"catpara_s1" xorm:"default 'NULL' comment('类别参数1') VARCHAR(100)"`
	CatparaS2         string `json:"catpara_s2" xorm:"default 'NULL' comment('类别参数2') VARCHAR(100)"`
	CatparaI1         int    `json:"catpara_i1" xorm:"default NULL comment('类别参数1') INT(11)"`
	CatparaI2         int    `json:"catpara_i2" xorm:"default NULL comment('类别参数2') INT(11)"`
	Createtime        string `json:"createtime" xorm:"default 'NULL' comment('创建时间')  VARCHAR(40)"`
	Lastmodifytime    string `json:"lastmodifytime" xorm:"default 'NULL' comment('最近更新时间')  VARCHAR(40)"`
	Lastmodifyby      string `json:"lastmodifyby" xorm:"default 'NULL' comment('修改人员') VARCHAR(40)"`
}

func (t *SubjectCategory) TableName() string {
	return "subject_category"
}

// 清除string字段的右侧空格
func (t *SubjectCategory) Clipped() {
	utils.TrimStruct(t, *t)
}

//增
func (t *SubjectCategory) Add() error {
	e := db.MasterEngine()
	countrole := new(SubjectCategory)
	affw, err := e.Table("subject_category").ID(core.PK{t.Cid, t.SubjectCategoryid}).Count(countrole)
	if err != nil {
		return err
	}
	if affw > 0 {
		return errors.New("数据已经存在！")
	}
	_, err = e.Table("subject_category").Insert(t)
	if err != nil {
		return err
	}
	return nil
}

//删
func (t *SubjectCategory) Del() bool {
	e := db.MasterEngine()
	_, err := e.ID(core.PK{t.Cid, t.SubjectCategoryid}).Delete(&SubjectCategory{})
	if err != nil {
		return false
	}
	return true
}

//改
func (t *SubjectCategory) Update() bool {
	e := db.MasterEngine()
	_, err := e.ID(core.PK{t.Cid, t.SubjectCategoryid}).Update(t)
	if err != nil {
		return false
	}
	return true
}

//查
func (t *SubjectCategory) SelectOne() (SubjectCategory, error) {
	e := db.MasterEngine()
	var data SubjectCategory
	_, err := e.ID(core.PK{t.Cid, t.SubjectCategoryid}).Get(&data)
	if err != nil {
		return data, err
	}
	return data, nil
}

//分页
func (t *SubjectCategory) GetPage(pageSize int, pageIndex int) ([]SubjectCategory, int, error) {
	data := make([]SubjectCategory, 0)
	e := db.MasterEngine()
	query := e.Table("subject_category").Where("cid = ? ", t.Cid)
	table := e.Table("subject_category").Where("cid = ? ", t.Cid)
	if !utils.ValueIsEmpty(t.SubjectCategoryid) {
		query = query.And("subject_categoryid = ?", t.SubjectCategoryid)
		table = table.And("subject_categoryid = ?", t.SubjectCategoryid)
	}
	Offset := (pageIndex - 1) * pageSize
	err := query.Limit(pageSize, Offset).Desc("createtime").Find(&data)
	pcount := new(SubjectCategory)
	count, err := table.Count(pcount)
	if err != nil {
		return data, 0, err
	}
	return data, int(count), nil
}

//类型集合
func (t *SubjectCategory) SelectArr() (data []SubjectCategory, err error) {
	e := db.MasterEngine()
	err = e.Table(t.TableName()).Select("subject_categoryid,descr").Where("cid = ?", t.Cid).Find(&data)
	if err != nil {
		return nil, err
	}
	return data, nil
}