/
mapdeviceaction.go
186 lines (172 loc) · 5.19 KB
/
mapdeviceaction.go
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package models
import (
"errors"
"fmt"
"reflect"
"strings"
"github.com/astaxie/beego/orm"
"github.com/astaxie/beego"
"time"
)
type MapDeviceAction struct {
Id int64 `orm:"pk;auto;column(id)" json:"id"`
Type string `orm:"" json:"type"`
MapDevice *MapDevice `orm:"rel(fk)" json:"map_device"`
DeviceAction *DeviceAction `orm:"rel(fk)" json:"device_action"`
Image *Image `orm:"rel(fk);null" json:"image"`
Created_at time.Time `orm:"auto_now_add;type(datetime);column(created_at)" json:"created_at"`
Update_at time.Time `orm:"auto_now;type(datetime);column(update_at)" json:"update_at"`
}
func (m *MapDeviceAction) TableName() string {
return beego.AppConfig.String("db_map_device_actions")
}
func init() {
orm.RegisterModel(new(MapDeviceAction))
}
// AddMapDeviceAction insert a new MapDeviceAction into database and returns
// last inserted Id on success.
func AddMapDeviceAction(m *MapDeviceAction) (id int64, err error) {
o := orm.NewOrm()
id, err = o.Insert(m)
return
}
// GetMapDeviceActionById retrieves MapDeviceAction by Id. Returns error if
// Id doesn't exist
func GetMapDeviceActionById(id int64) (v *MapDeviceAction, err error) {
o := orm.NewOrm()
v = &MapDeviceAction{Id: id}
if err = o.Read(v); err == nil {
return v, nil
}
return nil, err
}
// GetAllMapDeviceAction retrieves all MapDeviceAction matches certain condition. Returns empty list if
// no records exist
func GetAllMapDeviceAction(query map[string]string, fields []string, sortby []string, order []string,
offset int64, limit int64) (ml []interface{}, meta *map[string]int64, err error) {
o := orm.NewOrm()
qs := o.QueryTable(new(MapDeviceAction))
// 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, 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, 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, nil, errors.New("Error: 'sortby', 'order' sizes mismatch or 'order' size is not 1")
}
} else {
if len(order) != 0 {
return nil, nil, errors.New("Error: unused 'order' fields")
}
}
var l []MapDeviceAction
qs = qs.OrderBy(sortFields...)
objects_count, err := qs.Count()
if err != nil {
return
}
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)
}
}
meta = &map[string]int64{
"objects_count": objects_count,
"limit": limit,
"offset": offset,
}
return ml, meta, nil
}
return nil, nil, err
}
// UpdateMapDeviceAction updates MapDeviceAction by Id and returns error if
// the record to be updated doesn't exist
func UpdateMapDeviceActionById(m *MapDeviceAction) (err error) {
o := orm.NewOrm()
v := MapDeviceAction{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
}
// DeleteMapDeviceAction deletes MapDeviceAction by Id and returns error if
// the record to be deleted doesn't exist
func DeleteMapDeviceAction(id int64) (err error) {
o := orm.NewOrm()
v := MapDeviceAction{Id: id}
// ascertain id exists in the database
if err = o.Read(&v); err == nil {
var num int64
if num, err = o.Delete(&MapDeviceAction{Id: id}); err == nil {
fmt.Println("Number of records deleted in database:", num)
}
}
return
}
// AddMultipleMapDeviceAction
// Use a prepared statement to increase inserting speed with multiple inserts.
func AddMultipleMapDeviceAction(actions []*MapDeviceAction) (ids []int64, errs []error) {
o := orm.NewOrm()
qs := o.QueryTable(&MapDeviceAction{})
i, _ := qs.PrepareInsert()
for _, action := range actions {
id, err := i.Insert(action)
if err != nil {
errs = append(errs, err)
} else {
ids = append(ids, id)
}
}
// PREPARE INSERT INTO user (`name`, ...) VALUES (?, ...)
// EXECUTE INSERT INTO user (`name`, ...) VALUES ("slene", ...)
// EXECUTE ...
// ...
i.Close() // Don't forget to close the statement
return
}