Ruby-on-rails 将 link_to 更改为 button_to 时“没有路由匹配 [POST]”
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"No route matches [POST]" when changing link_to to button_to
提问by Jazz
I have this piece of code:
我有这段代码：
<%= link_to "New User", new_user_path, :class => "button" %><br />
which works fine, but when I change it to,
效果很好，但是当我将其更改为
<%= button_to "New User", new_user_path, :class => "button" %><br />
I get this error
我收到这个错误
No route matches [POST] "/users/new"
没有路由匹配 [POST] "/users/new"
Any help at all will be appreciated.
任何帮助都将不胜感激。
回答by megas
Jesus Rodriguez is right about POST and GET, but if you really need the button you can simply override the default method:
耶稣罗德里格斯关于 POST 和 GET 是正确的，但如果你真的需要按钮，你可以简单地覆盖默认方法：
<%= button_to "New User", new_user_path, :class => "button", :method => :get %>
回答by Jesus Rodriguez
The "link_to" is looking for a /users/newusing GET.
“link_to”正在使用GET寻找/users/new。
The "button_to" is looking for a /users/newusing POST
“button_to”正在使用POST寻找/users/new
If you create the routes for a controller using:
如果您使用以下方法为控制器创建路由：
resources :user
By default, /users/newis a GETand not POSTso, the second line doesn't find any route.
默认情况下，/users/new是GET而不是POST，所以第二行找不到任何路由。
If you are thinking to change that action to POSTI think that you should forget about it.
如果您正在考虑将该操作更改为POST，我认为您应该忘记它。
回答by Acronin3
Instead of forcing button_to to use a non-default method, you can also send a class to link_to.
除了强制 button_to 使用非默认方法，您还可以向 link_to 发送一个类。
<%= link_to "New User", new_user_path, :class => "button" %>
回答by madmed
button_to defaults to POST, and link_to defaults to GET, this is why links_to worked. You can force button_to to use GET:
button_to 默认为 POST，link_to 默认为 GET，这就是 links_to 起作用的原因。您可以强制 button_to 使用 GET：
<%= button_to "New User", new_user_path, :class => "button", :method => :get %>
You can get more information about button_to options here: http://api.rubyonrails.org/classes/ActionView/Helpers/UrlHelper.html#method-i-button_to
您可以在此处获取有关 button_to 选项的更多信息：http: //api.rubyonrails.org/classes/ActionView/Helpers/UrlHelper.html#method-i-button_to
