ruby-on-rails - Is that possible to get the file name in Paperclip validation message?

Question

I use Paperclip 2.3.11 in my Rails 3 application, and have the following validation:

validates_attachment_size :asset, :less_than => 2.megabytes, 
                          :message => "bigger than 2MB"

Is that possible to include the original file name in the message, so it will look like:

my_file.jpg bigger than 2MB

Answer 1

:message私はあなたが例えば：のためのラムダを渡すことができるべきだと思います。

validates_attachment_size :asset, :less_than => 2.megabytes, 
                          :message => lambda {|asset| "#{asset.file_name} bigger than 2MB" }