在更新Hyperstack的语法时,我需要在一些常规类中添加动态类:
div.upload_header.text_left(class: ('uploaded' if
FileUploads.complete?)) do
应该变成这样:
DIV(class: 'upload-header text-left (dynamic 'uploaded' should go
here)') do
我似乎无法弄清楚如何将常规类和动态类一起声明。
答案 0 :(得分:4)
字符串插值可以有条件地完成:
DIV(class: "upload-header text-left #{'uploaded' if FileUploads.complete?}")
class参数还可以接受一个数组:
def upload_header_classes
['upload-header', 'text-left'].tap do |classes|
classes << 'uploaded' if FileUploads.complete?
end
end
DIV(class: upload_header_classes)
我敢肯定还有很多其他方法可以做到,这是红宝石!