Railway.js中的嵌套资源:表示无法发布

Question

我正在尝试一个名为railway.js的MVC框架(它位于Node、Express、Mongoose和Mongo之上)。

我正在尝试让嵌套的资源正常工作。我执行了以下脚手架命令：

railway g scaffold user name email description 
railway g scaffold setup title description

然后，我将routes.js文件更改为：

exports.routes = function (map) {
  map.resources('users',function(user) {
    user.resources('setups');
  });
});

做railway r给了我所希望的：

     user_setups GET    /users/:user_id/setups.:format?          setups#index
     user_setups POST   /users/:user_id/setups.:format?          setups#create
  new_user_setup GET    /users/:user_id/setups/new.:format?      setups#new
 edit_user_setup GET    /users/:user_id/setups/:id/edit.:format? setups#edit
      user_setup DELETE /users/:user_id/setups/:id.:format?      setups#destroy
      user_setup PUT    /users/:user_id/setups/:id.:format?      setups#update
      user_setup GET    /users/:user_id/setups/:id.:format?      setups#show
           users GET    /users.:format?                          users#index
           users POST   /users.:format?                          users#create
        new_user GET    /users/new.:format?                      users#new
       edit_user GET    /users/:id/edit.:format?                 users#edit
            user DELETE /users/:id.:format?                      users#destroy
            user PUT    /users/:id.:format?                      users#update
            user GET    /users/:id.:format?                      users#show

当我启动服务器时，添加一个用户(碰巧是4e4b61e39f0d60d834000002)，然后转到http://localhost:3000/users/4e4b61e39f0d60d834000002/setups/new，它显示我“无法发布”。

我遗漏了什么？什么是好的调试方法？

我还尝试向UserSchema对象添加一个元素：setups: [SetupSchema]。(我们不应该这样做吗？)

提前谢谢。

Answer 1

在您的setup_controller中：

before(loaduser);

..。

function loadUser () {
User.findById(req.params.user_id, function (err, user) {
    if (err || !user) {
            redirect(path_to.users);
        } else {
            // this is where we make the actual user object accessible inside the view templating
            this.user = user;
            next();
        }
    }.bind(this));
}

在您的setup/form.jade中：

- form_for( setup, { method: 'POST', action: path_to.user_setups(user) }, function(form){
    //layout your form
- });

Answer 2

查看文件app/views/setups/new.ejs

<h1>New setup</h1>

<% form_for(setup, {action: path_to.setups, method: 'POST', id: "setup_form"}, function (form) { %>
  <%- partial('setups/form.ejs', {locals: {form: form, setup: setup}}) %>
  <%- form.submit('Create setup') %> or
  <%- link_to('Cancel', path_to.setups) %>
<% });%>

表示不存在路由path_to.setups，需要修改为正确的路由path_to.user_setups：

<h1>New setup</h1>

<% form_for(setup, {action: path_to.user_setups(user), method: 'POST', id: "setup_form"}, function (form) { %>
  <%- partial('setups/form.ejs', {locals: {form: form, setup: setup}}) %>
  <%- form.submit('Create setup') %> or
  <%- link_to('Cancel', path_to.setups) %>
<% });%>

因此，您将POST到/users/.../setups，而不是POST到/users/.../setups/new。

请注意，您需要传递用户作为path_to帮助器的第一个参数，以便铁路会为您建立正确的路线。