Ruby-on-rails 将类添加到 link_to 会破坏链接
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adding a class to a link_to is breaking the link
提问by mtay
I'm using link_to in RoR 3
我在 RoR 3 中使用了 link_to
When I use it like this, it works fine:
当我像这样使用它时，它工作正常：
<%= link_to "Add to your favorites list",:controller =>
'favourite_companies', :action =>'create',
:company_id=>"#{@company.id}",
:company_name=>"#{@company.company_name}" %>
But I would like to pass in a class as well
但我也想通过一堂课
however, this is not working for me. The class works, but it breaks the link. Any ideas?
然而，这对我不起作用。该课程有效，但它断开了链接。有任何想法吗？
<%= link_to "Add to your favorites list",{:controller =>
'favourite_companies', :action =>'create'},
:company_id=>"#{@company.id}",
:company_name=>"#{@company.company_name}",
:class=>"ui-button-text button_text"} %>
回答by edthix
<%= link_to "Add to your favorites list",{:controller =>
'favourite_companies', :action =>'create'},
:company_id=>"#{@company.id}",
:company_name=>"#{@company.company_name}",
:class=>"ui-button-text button_text"} %>
try this
尝试这个
<%= link_to "Add to your favorites list", :controller =>
'favourite_companies', :action =>'create',
:company_id=>"#{@company.id}",
:company_name=>"#{@company.company_name}",
{ :class=>"ui-button-text button_text" } %>
Since the :class should be in :html_options (refering to API)
由于 :class 应该在 :html_options 中（参考 API）
link_to(body, url, html_options = {})
回答by coreyward
The proper way of doing what you have is as follows:
做你所拥有的正确方法如下：
link_to "Foo", { URL_FOR PARAMS HERE }, :class => "bar"
As far as setting the controller and action manually like this, well, it's crap. Rails builds url helpers for you; use them and save yourself some time, energy, and add clarity, all at once:
至于像这样手动设置控制器和动作，好吧，这是废话。Rails 为你构建了 url helper；使用它们，同时节省一些时间、精力并增加清晰度：
link_to "Foo", favourite_companies_path(@company), :method => :post
What you're doing with the string interpolation is a bad idea too…it's just wasteful and cluttered for no reason at all. The following is the same, just better:
你正在用字符串插值做的事情也是一个坏主意……它只是毫无理由地浪费和混乱。以下是相同的，只是更好：
link_to "Foo", :company_id => @company.id, :company_name => @company.name
As far as why your link wasn't working, if wrapping it in a div helped it sounds like you have a problem with your HTML structure, not the link_to syntax.
至于为什么你的链接不起作用，如果将它包装在一个 div 中，听起来你的 HTML 结构有问题，而不是 link_to 语法。
回答by Chris
I'm using a link_to do-end block so the above previous solutions didn't work for me.
我正在使用 link_to do-end 块，因此上述以前的解决方案对我不起作用。
If you want to embed other tags in your a tag, then you can use the link_to do-end block.
如果你想在你的 a 标签中嵌入其他标签，那么你可以使用 link_to do-end 块。
<%= link_to favourite_companies_path(:company_id => @company.id, :another_url_param_here => "bar"), { :class => "ui-button-text button_text", :title=> "We can have more html attributes as well" } do %>
<i class="fa fa-star"></i>
<%= @company.company_name %>
<% end %>
In this case it's
在这种情况下是
<%= link_to path(url_params), html_options = {} do %>
<% end %>
回答by Kenigbolo
Be careful because in Rails 5 the above methods will still result in a wrong URL generation. The controller and action need to be put in a literal hash in order for it to work in Rails 5. What you will have should be something like this
小心，因为在 Rails 5 中，上述方法仍然会导致错误的 URL 生成。控制器和动作需要放在一个文字散列中才能在 Rails 5 中工作。 你将拥有的应该是这样的
<%= link_to "Add to your favorites list",
{ controller: "favourite_companies", action:"create"},
company_id: @company.id,
company_name: @company.company_name,
class: "ui-button-text button_text" %>
