38  

Simply specify in your mailer:

只需在郵件中指定：

layout false

You can also append :only => my_action (or :except) to limit the methods it applies to, like so:

您還可以追加：only => my_action（或：except）來限制它適用的方法，如下所示：

layout false, :only => 'email_method_no_layout'

(applicable API documentation)

（適用的API文檔）

3  

The layout method can accept the name of a method; use the method to determine whether to show a layout and return that name or false.

布局方法可以接受方法的名稱;使用該方法確定是否顯示布局並返回該名稱或false。

layout :choose_layout
...

private
def choose_layout
  if something
    return false
  else
    return 'application'
  end
end

3  

I did it by using a small function, looking at the action name and return the correct mailer layout to be used:

我通過使用一個小函數，查看操作名稱並返回要使用的正確郵件程序布局來完成它：

class TransactionMailer < ApplicationMailer

  layout :select_layout

  def confirmation_email contact
    #code
  end

  private
  def select_layout
    if action_name == 'confirmation_email'
      false
    else
      'mailer'
    end
  end
end

1  

You could also be very sketchy and do this before the mail( ) call at the end of the specific mailer action instead:

您也可以非常粗略，並在特定郵件程序操作結束時調用mail（）之前執行此操作：

@_action_has_layout = false