Backbone.js 创建方法不向 sinatra 发送参数

Question

我是主干的新手，并试图在 Sinatra 中进行设置，但我似乎无法让简单的创建工作。

我已经设置了我的模型/集合:

var TEAM_ID = window.location.pathname.split('/')[1]; // From url
$(function () {
  var TeamMember = Backbone.Model.extend({
    defaults: {
      name : ""
    }
  });

  var TeamMembers = Backbone.Collection.extend({
    model: TeamMember,
    url: "/" + TEAM_ID + "/team-members.json"
  });

  var teamMembers = new TeamMembers;

  var TeamMemberView = Backbone.View.extend({
    events: { 
      "click #new-team-member-form .submit-button" : "handleNewTeamMember" 
    },
    handleNewTeamMember: function(data) {
      var inputField = $('input[name=new_team_member_name]');
      console.log("Pre create");

      // This doesn't get sent to the server!!
      var teamMember = teamMembers.create({name: inputField.val());

      console.log("Post create");

      return false; // Don't submit form
    }, 
    render: function() {
      console.log("Render team member");

      return this;
    }
  });

  // ...

  var teamMemberView = new TeamMemberView({el: $('#week-view')});

});

html 看起来像:

<table id="week-view">
  <!-- ... -->
  <form id="new-team-member-form" action="/some-add-url" method="post">
    <fieldset class="new-object-fieldset" title="New team member">
      <legend>New team member</legend>
      <label for="new_team_member_name">Add new</label>
      <input type="text" name="new_team_member_name" title="Add member" class="new-object-text-box" /> 
      <button type="submit" name="new_team_member" value="new_team_member" class="submit-button">+</button>
      <div id="help-new"></div>
    </fieldset> <!-- New team member -->
  </form>
  <!-- ... -->

ruby 看起来像:

post '/:team_id/team-members.json' do  
  logger.info("Add team member (json): #{params}")
end

但是sinatra服务器只显示 params[:team_id] ，没有 name teamMembers.create 上的参数线。我在做一些愚蠢的事情吗？没有正确初始化某些东西？

我看过 http://documentcloud.github.com/backbone/#Collection-create ,
http://documentcloud.github.com/backbone/docs/todos.html , http://liquidmedia.ca/blog/2011/01/backbone-js-part-1/ , http://liquidmedia.ca/blog/2011/01/an-intro-to-backbone-js-part-2-controllers-and-views/和 https://gist.github.com/1655019 ，但我似乎无法在那里找到任何答案。我觉得我做了一些愚蠢的事情，但就是看不到它!

Answer 1

事实证明，是我不知道如何正确提取 sinatra 中的 json 参数。来自本站:http://mini.softwareas.com/posting-json-to-a-sinatra-mongodb-service ，我发现我必须使用 request.body.read.to_s而不是 params哈希即，

post '/:team_id/team-members.json' do  
  request_body = JSON.parse(request.body.read.to_s)
  team_member_name = request_body["name"]
  # ...
end