Html Rails - 带有 data-* 属性的 link_to 助手
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Rails - link_to helper with data-* attribute
提问by eveevans
Possible Duplicate:
Best way to use html5 data attributes with rails content_tag helper?
How can I use html5 data-*attrubute in my link_to helper (Rails)
如何data-*在我的 link_to 助手（Rails）中使用 html5 attrubute
The API says that I have to use this format link_to(body, url, html_options = {})but I have an error when I put it in html_options
API 说我必须使用这种格式，link_to(body, url, html_options = {})但是当我将它放入 html_options 时出现错误
Ex:
前任：
link_to "whatever", @whatever_path, { class: 'my_class', data-tooltip: 'what I want' }
回答by sethvargo
Just pass them in... Rails has a default :datahash
只需将它们传入... Rails 有一个默认的:data哈希值
= link_to body, url, :data => { :foo => 'bar', :this => 'that' }
One gotcha - you must surround symbols with quotes if they include a dash:
一个问题 - 如果符号包含破折号，则必须用引号将符号括起来：
:data => { :'foo-bar' => 'that' }
Update:In Rails 4, underscores are automatically converted to dashes, so you can do this:
更新：在 Rails 4 中，下划线会自动转换为破折号，因此您可以这样做：
:data => { :foo_bar => 'that' }
Alternatively you can just write it directly:
或者，您可以直接编写它：
= link_to body, url, :'data-foo' => 'bar', :'data-this' => 'that'
Update 2:As pointed out in the comments, Ruby 1.9+ allows this syntax, which some believe is cleaner:
更新 2：正如评论中所指出的，Ruby 1.9+ 允许这种语法，有些人认为它更清晰：
{ data: { foo: "bar" } }
回答by Robin
Add a data-attribute by doing the following:
data-通过执行以下操作添加属性：
link_to "Hello", hello_path, :"data-attribute" => "yeah!"
