Question

Hello my problem is simple I have code which simplified looks like this

foo = OpenStruct.new
bar = OpenStruct.new

mappings.each do |k,v|
 eval "foo.#{k} = bar.#{v}"
end

I am trying to fix this eval use and not use it 🙂 Figured out the right part but I do not know how to assign to left one. To access getter you could write.

 bar.send(v.to_sym)
 # not to sure how to access setter for foo

I am using Ruby 1.8.7, Thank you

Answer 1

Not sure about 1.8.7, but in newer Rubies this works:

foo.send("#{k}=".to_sym, bar.send(v.to_sym))

Also, in newer versions, send accepts strings as well, so you can omit .to_sym.