我想我做的事情非常糟糕.我收到此错误:
TypeError
no implicit conversion of nil into String
如果我把它放在我的视图(haml)中:
...
- ["Greg", "is", "cool", "ya"].each do |tag|
.tagwrapper
= link_to tag.to_s.gsub!(/[^0-9A-Za-z]/, ''), '/search?searchtags='+tag.to_s.gsub!(/[^0-9A-Za-z]/, ''), class: 'smaller half-stretched'
...
我应该怎么做呢？