golang(3):beego CRUD demo (1)

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1,beego 自带crud生成工具

工具执行非常简单:

bee generate scaffold post -fields=”title:string,body:text”

设置模块post,里面的fileds有两个 title 和body。

bee generate scaffold post -fields=”title:string,body:text”2015/06/30 19:00:54 [INFO] Using ‘post’ as scaffold name2015/06/30 19:00:54 [INFO] Do you want me to create a post model? [yes|no]] yesmodel namepackage name/a post controller? [yes|no]] yescontroller namepackage name/views for this post resource? [yes|no]] yes2015/06/30 19:01:01 [INFO] Created: /Users/freewebsys/Workspace_go/demo1/src/views/post/index.tpl2015/06/30 19:01:01 [INFO] Created: /Users/freewebsys/Workspace_go/demo1/src/views/post/show.tpl2015/06/30 19:01:01 [INFO] Created: /Users/freewebsys/Workspace_go/demo1/src/views/post/create.tpl2015/06/30 19:01:01 [INFO] Created: /Users/freewebsys/Workspace_go/demo1/src/views/post/edit.tpla post migration this resource? [yes|no]] yes/ahead :01:09 [INFO] All done! Don’t forget to add beego.Router(“/post” ,&controllers.PostController{}) to routers/route.go2015/06/30 19:01:09 [SUCC] generate successfully created!

生成了一堆代码,,但是controller的代码是空方法,生成的页面代也是只有一行。

models里面的代码很全:

package modelsimport ()type Post struct {Id int64 `orm:”auto”`Title string `orm:”size(128)”`Body string `orm:”type(longtext)”`}func init() {orm.RegisterModel(new(Post))}AddPost(m *Post) (id int64, err error) {o := orm.NewOrm()id, err = o.Insert(m)return}GetPostById(id int) (v *Post, err error) {o := orm.NewOrm()v = &Post{Id: id}if err = o.Read(v); err == nil {return v, nil}return nil, err}GetAllPost(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(Post))// query k=vfor k, v := range query {// rewrite dot-notation to Object__Attributek = strings.Replace(k, “.”, “__”, -1)qs = qs.Filter(k, v)}(sortby) != 0 {if len(sortby) == len(order) {// 1) for each sort field, there is an associated orderfor 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…)} (sortby) != len(order) && len(order) == 1 {// 2) there is exactly one order, all the sorted fields will be sorted by this orderfor _, 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)}} (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 []Postqs = qs.OrderBy(sortFields…)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 fieldsfor _, 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}UpdatePostById(m *Post) (err error) {o := orm.NewOrm()v := Post{Id: m.Id}// ascertain id exists in the databaseif err = o.Read(&v); err == nil {var num int64if num, err = o.Update(m); err == nil {fmt.Println(“Number of records updated in database:”, num)}}return}DeletePost(id int) (err error) {o := orm.NewOrm()v := Post{Id: id}// ascertain id exists in the databaseif err = o.Read(&v); err == nil {var num int64if num, err = o.Delete(&Post{Id: id}); err == nil {fmt.Println(“Number of records deleted in database:”, num)}}return}3,运行项目

要运行项目需要再src目录下面增加一个main.go

package mainimport (){beego.Run()}到底通向了什么样的远方呢?

golang(3):beego CRUD demo (1)

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