Ruby Rails-为AJAX调用控制器动作构造数据

Question

我的网站上需要一个按钮，可以将信息发送到控制器的create动作（“ pagetimes”）。尽管它没有发送我指定的所有数据，但似乎仍在工作-
可能与我无法构造数据向量有关。我已经通过以下方式在config / routes.rb文件中提供了POST请求：post 'pagetimes/create'

在application.js中：

function submitForm() {
  alert("checked the button - worked");
  $.ajax({
    type:'POST', 
    url: '/pagetimes/create', 
    data: { pagename: "whatever", start: 7, end: 21 } ,
  });
}

其中:pagename，:start和:end是我的数据表中的列（字符串，整数，整数），并且可以在模型中访问，并且可以在手动输入“新”页面中显示的页面时间获得。

在我的页面视图中：

<button type="button" onclick="submitForm()">Send data</button>

其他一切都是很标准的。我可以在数据库中看到该帖子已成功提交，但是我尝试填充的3个数据字段均为NULL。可能这与我如何构建该data: {}领域有关？

O / w，Win7上的Rails 3，没有使用其他可能与此有关的花哨内容…

更新1：这就是我尝试发布的表单源代码。也许是我不正确地引用字段的情况？

<div class="form-inputs">
  <div class="control-group string optional pagetime_pagename"><label class="string optional control-label" for="pagetime_pagename">Pagename</label><div class="controls"><input class="string optional" id="pagetime_pagename" name="pagetime[pagename]" size="50" type="text" /></div></div>
  <div class="control-group integer optional pagetime_start"><label class="integer optional control-label" for="pagetime_start">Start</label><div class="controls"><input class="numeric integer optional" id="pagetime_start" name="pagetime[start]" step="1" type="number" /></div></div>
  <div class="control-group integer optional pagetime_end"><label class="integer optional control-label" for="pagetime_end">End</label><div class="controls"><input class="numeric integer optional" id="pagetime_end" name="pagetime[end]" step="1" type="number" /></div></div>
</div>

更新2：这是我的日志，其中包含POST：

Started POST "/pagetimes/create" for 127.0.0.1 at 2014-01-02 12:45:48 -0500
Processing by PagetimesController#create as */*
  Parameters: {"end"=>"21", "pagename"=>"whatever", "start"=>"7"}
  [1m[35mUser Load (1.0ms)[0m  SELECT "users".* FROM "users" WHERE "users"."id" = 1 LIMIT 1
  [1m[36m (0.0ms)[0m  [1mbegin transaction[0m
  [1m[35mSQL (15.0ms)[0m  INSERT INTO "pagetimes" ("created_at", "end", "pagename", "start", "updated_at", "user_id") VALUES (?, ?, ?, ?, ?, ?)  [["created_at", Thu, 02 Jan 2014 17:45:48 UTC +00:00], ["end", nil], ["pagename", nil], ["start", nil], ["updated_at", Thu, 02 Jan 2014 17:45:48 UTC +00:00], ["user_id", 1]]
  [1m[36m (7.0ms)[0m  [1mcommit transaction[0m
Redirected to http://localhost:3000/pagetimes/22
Completed 302 Found in 91ms (ActiveRecord: 24.0ms)

更新3：控制器动作

def create
  @pagetime = Pagetime.new(params[:pagetime])
  @pagetime.user = current_user

  respond_to do |format|
    if @pagetime.save
      format.html { redirect_to @pagetime, notice: 'Pagetime was successfully created.' }
      format.json { render json: @pagetime, status: :created, location: @pagetime }
    else
      format.html { render action: "new" }
      format.json { render json: @pagetime.errors, status: :unprocessable_entity }
    end
  end
end

Answer 1

 function submitForm() {
      alert("checked the button - worked");
      $.ajax({
           type:'POST', 
           url: '/pagetimes/create', 
           data: $.param({ pagetime: {pagename: "whatever", start: 7, end: 21 }})
      });
 }