Ruby on rails – 更新ajax上的PUT方法

有人能告诉我为什么这个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方法但是在我的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 (2.3ms) Completed 200 OK in 238ms (Views: 235.9ms | ActiveRecord: 0.4ms) 

resources_controller.rb

  # PUT /resources/1 # PUT /resources/1.json def update @resource = Resource.find(params[:id]) respond_to do |format| if @resource.update_attributes(params[:resource]) format.html { redirect_to @resource, notice: 'successfully updated.' } format.js else format.html { render action: "edit" } format.js end end end 

我试过添加_method：’put’但它仍然是相同的

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

服务器：

“资源％5Bpos_y％5D = 45＆资源％5Bpos_x％5D = 50＆ method = put ＆= 1344004390840”

 Started GET "/resources/35?resource%5Bpos_y%5D=45&resource%5Bpos_x%5D=50&_method=put&_=1344004390840" for 192.168.1.89 at 2012-08-03 16:33:10 +0200 Processing by ResourcesController#show as */* Parameters: {"resource"=>{"pos_y"=>"45", "pos_x"=>"50"}, "_"=>"1344004390840", "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 (0.8ms) Completed 200 OK in 93ms (Views: 90.5ms | ActiveRecord: 0.4ms) 

我很感激任何帮助。

Answer 1

Rails通过参数_method确定put请求，值为’put’。

由于并非所有浏览器都支持put方法，因此在form_tag中使用rails作弊。 它将此输出置于PUTforms：

所以你要做的就是：

 $.ajax({ type: "POST", dataType: "script", url: '/resources/35', contentType: 'application/json', data: JSON.stringify({ resource:{pos_y:45,pos_x:50}, _method:'put' }) }).done(function( msg ) { alert( "Data Saved: " + msg ); });