在Rails中，如何从数组中挑选一个属于params hash的元素？

Question

An element from my params hash is an array by itself, like:

Parameters:

{"utf8"=>"✓",
"scan"=>{"scores"=>"66 73 75 47"},
 "commit"=>"report",
 "id"=>"6"}

I've searched and I've tried, but I can't find the right params[....] syntax to access the integers in the "scores"-array. I want to use them in my controller. )-: Help?

Answer 1

That's not an array, that's a space-separated list in a single string. Access it like this:

params[:scan][:scores].split.map(&:to_i)

(I'm assuming you want integers, not strings.)

Alternatively, if your code is making the request, you may be able to fix it to make the request with an array instead of a space-separated string.