ruby-on-rails - Rails form using GET request: How to remove button and utf8 params?

Question

I'm just trying to create a simple select menu that takes you to a specific URL. So far I have something like this:

# haml
= form_tag new_something_path, method: :get do
  = select_tag :type, options_for_select(my_array)
  = submit_tag 'New Something'

However, when I submit the form I get the UTF8 parameter as well as a "commit" parameter with the text of the button.

How can I remove the UTF8 and commit parameters?

score 43 · Accepted Answer

去掉commitparam比较简单，需要指定输入没有名字：

submit_tag 'New Something', name: nil

关于 UTF-8 参数……它有一个重要的用途。一旦你理解了 Rails UTF-8 参数的目的，并且由于某种原因你仍然需要删除它，解决方案比你想象的要容易......只是不要使用 form_tag 帮助器：

# haml
%form{action: new_something_path, method: 'get'}
  = select_tag :type, options_for_select(my_array)
  = submit_tag 'New Something', name: nil

score 2 · Accepted Answer

utf8您可以通过添加(and also ) 的enforce_utf8: false选项来摆脱参数，如下所示：form_tagform_form

= form_tag new_something_path, method: :get, enforce_utf8: false do

（感谢@Dmitry 指出这一点）

但请确保您不需要它：Ruby on Rails 3 表单中的 _snowman 参数是干什么用的？（我不确定它是否真的与GET表格相关。）

附加参数由提交按钮生成，可以通过设置name: false您的选项来删除submit_tag（也适用submit于的情况form_for）。

= submit_tag 'New Something', name: nil

2 回答 2