get a array use params

Question

Hey,Guys! In rails , I met a question! when i use the multiple select ,i don't know ,how can i get the all parameter values ,it likes in javaEE,

 String[] strs=request.getParameters("aaa");

so,who can tell me the method in rails to realize the function? Thank you in advance!

Answer 1

You search for "params". See http://api.rubyonrails.org/classes/ActionController/Base.html#Parameters for reference (subsection #Parameters). You can access the "aaa" parameter (GET/POST) using params[:aaa].

If you have a multi select in your form that value will just be an array of those values.