LAPP_MY_BACKEND/web/models/company.go

package models

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

type Company struct {
	Cnr              int    `json:"cnr" xorm:"not null pk comment('小区ID') INT(11)"`
	Cid              int    `json:"cid" xorm:"not null pk INT(11)"`
	Descr            string `json:"descr" xorm:"default 'NULL' comment('描述') VARCHAR(100)"`
	Active           int    `json:"active" xorm:"default NULL comment('是否激活') INT(11)"`
	Address          string `json:"address" xorm:"default 'NULL' comment('地址') VARCHAR(255)"`
	Constructionarea string `json:"constructionarea" xorm:"default NULL comment('建筑面积') DECIMAL(10,2)"`
	Totalhouseholds  int    `json:"totalhouseholds" xorm:"default NULL comment('住户数') INT(11)"`
	Totalbuildings   int    `json:"totalbuildings" xorm:"default NULL comment('建筑数') INT(11)"`
	Createtime       string `json:"createtime" xorm:"not null comment('创建时间') VARCHAR(40)"`
	Lastmodifytime   string `json:"lastmodifytime" xorm:"not null comment('上次更新时间') VARCHAR(40)"`
	Lastmodifyby     string `json:"lastmodifyby" xorm:"default 'NULL' comment('更新人员') VARCHAR(40)"`
}

func (t *Company) TableName() string {
	return "company"
}

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

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

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

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

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

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