ROR在一个语句中附加多个文件

Question

有没有办法缩短这段代码？它看起来很悲惨

has_attached_file :logo, :styles => { :medium => "300x300>", :thumb => "100x100>" }, :default_url => "/images/:style/missing.png"
has_attached_file :image1, :styles => { :medium => "300x300>", :thumb => "100x100>" }, :default_url => "/images/:style/missing.png"
has_attached_file :image2, :styles => { :medium => "300x300>", :thumb => "100x100>" }, :default_url => "/images/:style/missing.png"
has_attached_file :image3, :styles => { :medium => "300x300>", :thumb => "100x100>" }, :default_url => "/images/:style/missing.png"

Answer 1

你可以这样做：

[:logo, :image1, :image2, :image3].each do |image_symbol| 
   has_attached_file image_symbol, :styles => { :medium => "300x300>", :thumb => "100x100>" }, 
          :default_url => "/images/:style/missing.png"  
end

希望这会有所帮助:)。