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package models
import (
"errors"
"fmt"
"github.com/beego/beego/v2/client/orm"
"reflect"
"strings"
)
type User struct {
Id int64
Avatar string
Email string
Enabled int8
Password string
Username string
DeptId int32
Phone string
JobId int32
NickName string
Sex string
BaseModel
}
func init() {
orm.RegisterModel(new(User))
}
// AddUser insert a new User into database and returns
// last inserted Id on success.
func AddUser(m *User) (id int64, err error) {
o := orm.NewOrm()
id, err = o.Insert(m)
return
}
// GetUserById retrieves User by Id. Returns error if
// Id doesn't exist
func GetUserById(id int64) (v *User, err error) {
o := orm.NewOrm()
v = &User{Id: id}
if err = o.QueryTable(new(User)).Filter("Id", id).RelatedSel().One(v); err == nil {
return v, nil
}
return nil, err
}
// GetAllUser retrieves all User matches certain condition. Returns empty list if
// no records exist
func GetAllUser(query map[string]string, fields []string, sortby []string, order []string,
offset int64, limit int64) (ml []interface{}, err error) {
o := orm.NewOrm()
qs := o.QueryTable(new(User))
// query k=v
for k, v := range query {
// rewrite dot-notation to Object__Attribute
k = strings.Replace(k, ".", "__", -1)
qs = qs.Filter(k, v)
}
// order by:
var sortFields []string
if len(sortby) != 0 {
if len(sortby) == len(order) {
// 1) for each sort field, there is an associated order
for i, v := range sortby {
orderby := ""
if order[i] == "desc" {
orderby = "-" + v
} else if order[i] == "asc" {
orderby = v
} else {
return nil, errors.New("Error: Invalid order. Must be either [asc|desc]")
}
sortFields = append(sortFields, orderby)
}
qs = qs.OrderBy(sortFields...)
} else if len(sortby) != len(order) && len(order) == 1 {
// 2) there is exactly one order, all the sorted fields will be sorted by this order
for _, v := range sortby {
orderby := ""
if order[0] == "desc" {
orderby = "-" + v
} else if order[0] == "asc" {
orderby = v
} else {
return nil, errors.New("Error: Invalid order. Must be either [asc|desc]")
}
sortFields = append(sortFields, orderby)
}
} else if len(sortby) != len(order) && len(order) != 1 {
return nil, errors.New("Error: 'sortby', 'order' sizes mismatch or 'order' size is not 1")
}
} else {
if len(order) != 0 {
return nil, errors.New("Error: unused 'order' fields")
}
}
var l []User
qs = qs.OrderBy(sortFields...).RelatedSel()
if _, err = qs.Limit(limit, offset).All(&l, fields...); err == nil {
if len(fields) == 0 {
for _, v := range l {
ml = append(ml, v)
}
} else {
// trim unused fields
for _, v := range l {
m := make(map[string]interface{})
val := reflect.ValueOf(v)
for _, fname := range fields {
m[fname] = val.FieldByName(fname).Interface()
}
ml = append(ml, m)
}
}
return ml, nil
}
return nil, err
}
// UpdateUser updates User by Id and returns error if
// the record to be updated doesn't exist
func UpdateUserById(m *User) (err error) {
o := orm.NewOrm()
v := User{Id: m.Id}
// ascertain id exists in the database
if err = o.Read(&v); err == nil {
var num int64
if num, err = o.Update(m); err == nil {
fmt.Println("Number of records updated in database:", num)
}
}
return
}
// DeleteUser deletes User by Id and returns error if
// the record to be deleted doesn't exist
func DeleteUser(id int64) (err error) {
o := orm.NewOrm()
v := User{Id: id}
// ascertain id exists in the database
if err = o.Read(&v); err == nil {
var num int64
if num, err = o.Delete(&User{Id: id}); err == nil {
fmt.Println("Number of records deleted in database:", num)
}
}
return
}