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实例公共方法

preview_path()

来源：显示 | GitHub 

# File actionmailer/lib/action_mailer/preview.rb, line 45
      def preview_path
        ActionMailer.deprecator.warn(<<-MSG.squish)
          Using preview_path option is deprecated and will be removed in Rails 7.2.
          Please use preview_paths instead.
        MSG
        self.preview_paths.first
      end

preview_path=(value)

来源：显示 | GitHub 

# File actionmailer/lib/action_mailer/preview.rb, line 37
      def preview_path=(value)
        ActionMailer.deprecator.warn(<<-MSG.squish)
          Using preview_path= option is deprecated and will be removed in Rails 7.2.
          Please use preview_paths= instead.
        MSG
        self.preview_paths << value
      end

register_preview_interceptor(interceptor)

注册一个拦截器，该拦截器将在预览邮件之前调用。可以将类或字符串作为拦截器传入。如果传入字符串，它将被常量化。

来源：显示 | GitHub 

# File actionmailer/lib/action_mailer/preview.rb, line 66
def register_preview_interceptor(interceptor)
  preview_interceptor = interceptor_class_for(interceptor)

  unless preview_interceptors.include?(preview_interceptor)
    preview_interceptors << preview_interceptor
  end
end

register_preview_interceptors(*interceptors)

注册一个或多个拦截器，这些拦截器将在预览邮件之前调用。

来源：显示 | GitHub 

# File actionmailer/lib/action_mailer/preview.rb, line 54
def register_preview_interceptors(*interceptors)
  interceptors.flatten.compact.each { |interceptor| register_preview_interceptor(interceptor) }
end

unregister_preview_interceptor(interceptor)

取消注册之前注册的拦截器。可以将类或字符串作为拦截器传入。如果传入字符串，它将被常量化。

源代码：显示 | GitHub 

# File actionmailer/lib/action_mailer/preview.rb, line 77
def unregister_preview_interceptor(interceptor)
  preview_interceptors.delete(interceptor_class_for(interceptor))
end

unregister_preview_interceptors(*interceptors)

取消注册一个或多个先前注册的拦截器。

源代码：显示 | GitHub 

# File actionmailer/lib/action_mailer/preview.rb, line 59
def unregister_preview_interceptors(*interceptors)
  interceptors.flatten.compact.each { |interceptor| unregister_preview_interceptor(interceptor) }
end