小编use*_*922的帖子

有人可以告诉我为什么这个PUT方法不起作用.

$.ajax({
        type: "PUT",
        dataType: "script",
        url: '/resources/35',
        data:
        {
            resource : { pos_y: 45, pos_x: 50 }
        }
    }).done(function( msg )
            {
                alert( "Data Saved: " + msg );
            });

服务器说我已经使用了GET方法,但在我的ajax请求中我输入了:"PUT"

Started GET "/resources/35?resource%5Bpos_y%5D=45&resource%5Bpos_x%5D=50&_=1344001820350" for 192.168.1.89 at 2012-08-03 15:50:20 +0200
Processing by ResourcesController#show as */*
  Parameters: {"resource"=>{"pos_y"=>"45", "pos_x"=>"50"}, "_"=>"1344001820350", "id"=>"35"}
  User Load (0.3ms)  SELECT "users".* FROM "users" 
  Resource Load (0.1ms)  SELECT "resources".* FROM "resources" WHERE "resources"."id" = ? LIMIT 1  [["id", "35"]]
  Rendered resources/show.html.erb within layouts/login …

我正在使用Rails和jquery,我需要一个带有ajax的动态内容.

但我不知道如何获取当前的用户ID

例如,网址是www.mywebsite.com/users/ 20

在我的javascript文件中,我需要用户ID(20)

$.get("/users/<%= **20** %>.json", function(data)
      {

      }, "json");

在此先感谢您的帮助.

还有另一种方法吗？

我需要知道当前载波实例的宽度和高度

例如:

image_tag image.photo_url,:width => image.photo.width, :height => image.photo.height

但问题是image.photo.width和image.photo.height不起作用.

有任何想法吗 ？

控制器: @micropost = Micropost.new(params[:micropost])

但是这个form_tag正在发送给我params[:content]而不是params[:micropost][:content]

<%= form_tag( {:controller => :microposts, :action => :create}, :remote => true) do %>

    <%= text_area_tag :content, "", :size=> "20x2" %>
    ...
    ...
    ...
    <%= submit_tag "submit" %>
<% end %>

服务器:

Processing by MicropostsController#create as JS
Parameters: {"utf8"=>"?", "content"=>"sdfsdf", "commit"=>"submit"}