如何动态更改 path_to()? [英] How do I dynamically change the path_to()?

问题描述

我目前有三种方法，我想将它们合并为一种:

I currently have three methods which I want to collapse into one:

  def send_email(contact,email)

  end

  def make_call(contact, call)
    return link_to "Call", new_contact_call_path(:contact => contact, :call => call, :status => 'called')
  end

  def make_letter(contact, letter)
    return link_to "Letter", new_contact_letter_path(:contact => contact, :letter => letter, :status => 'mailed')
  end

我想将三者合二为一，这样我就可以将模型作为参数之一传递，它仍然可以正确创建 path_to.我正在尝试使用以下方法执行此操作，但卡住了:

I want to collapse the three into one so that I can just pass the Model as one of the parameters and it will still correctly create the path_to. I am trying to do this with the following, but stuck:

  def do_event(contact, call_or_email_or_letter)
    model_name = call_or_email_or_letter.class.name.tableize.singularize
   link_to "#{model_name.camelize}", new_contact_#{model_name}_path(contact, call_or_email_or_letter)" 
  end

感谢这里的答案，我尝试了以下方法，这让我更接近:

Thanks to the answers here, I have tried the following, which gets me closer:

link_to( "#{model_name.camelize}", send("new_contact_#{model_name}_path", 
                                        :contact => contact, 
                                        :status => "done",
                                        :model_name => model_name) )

但我似乎无法弄清楚如何在 #{model_name} 是 :attribute 时传递它，然后发送 model_name 的值，而不是作为字符串，而是引用对象.

But I can't seem to figure out how to past the #{model_name} when it is an :attribute and then send the value of model_name, not as a string, but referring the object.

我做到了: -- 给 Kadada 积分，因为他让我找到了正确的方向 :)

I got this to work: -- giving points to Kadada because he got me in the right direction :)

  def do_event(contact, call_or_email_or_letter) 
    model_name = call_or_email_or_letter.class.name.tableize.singularize 
    link_to( "#{model_name.camelize}", send("new_contact_#{model_name}_path", 
                                            :contact => contact, 
                                            :status => 'done',
                                            :"#{model_name}" => call_or_email_or_letter ) )                                       
  end 

推荐答案

试试这个:

def do_event(contact, call_or_email_or_letter)
  model_name = call_or_email_or_letter.class.name.tableize.singularize
  link_to( "#{model_name.camelize}", send("new_contact_#{model_name}_path", 
                 contact, call_or_email_or_letter) )
end

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