Ruby: Nils in an IF statement [duplicate]

Answer 1

I usually end up doing something like this:

if params.has_key?(:search) && params[:search].has_key?(:tags_name_in)
...

end

Although if you don't mind testing against nils in your if statement you could also do this:

if params[:search] && params[:search][:tags_name_in] ...

This will not throw an error because ruby short-circuits the && operator.