javascript Ruby on rails - 更新 ajax 的 PUT 方法
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Ruby on rails - PUT method on update ajax
提问by user1560922
Could someone tell me why this PUT method doesn't work please.
有人能告诉我为什么这个 PUT 方法不起作用吗？
$.ajax({
type: "PUT",
dataType: "script",
url: '/resources/35',
data:
{
resource : { pos_y: 45, pos_x: 50 }
}
}).done(function( msg )
{
alert( "Data Saved: " + msg );
});
Server says that I have used the GET methodbut in my ajax request I have type: "PUT"
服务器说我使用了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 (2.3ms)
Completed 200 OK in 238ms (Views: 235.9ms | ActiveRecord: 0.4ms)
resources_controller.rb
资源控制器.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
I have tried adding _method: 'put'But it's still the same
我试过添加_method: 'put'但还是一样
$.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 );
});
Server:
服务器：
"resource%5Bpos_y%5D=45&resource%5Bpos_x%5D=50&method=put&=1344004390840"
“资源%5Bpos_y%5D=45&资源%5Bpos_x%5D=50&方法=放置&=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)
I'd appreciate any help.
我很感激任何帮助。
回答by Michael Koper
Rails determines the put request via the parameter _method with the value 'put'.
Rails 通过值为 'put' 的参数 _method 确定放置请求。
As not all the browsers support the put method, rails cheats in the form_tag. its putting this output in a PUT form:
由于并非所有浏览器都支持 put 方法，因此 rails 在 form_tag 中作弊。它把这个输出放在一个 PUT 形式中：
<input type='hidden' name='_method' value='put'>
So what you have to do is this:
所以你要做的是：
$.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 );
});
