On 21 May 2015 at 13:48, kranthi kumar <kranthi.3...@gmail.com> wrote: > I know that we can add records like > > record.posts << Post.find(1); > > but how can add the same Post.find(1) record if I have a variable that > contains the name "posts" > > I have something like this > > column_name = "posts" > > record[column_name] << Post.find(1); > > it is throwing an error
The ruby method send can be used to call a method by name, so for normal methods one would do record.send(column_name) << Post.find(1) I think that aught to work for an ActiveRecord relation but never tried it. However when I see code like that it often meens that there is some smelly code about. Are you sure you really want to do what you are attempting? There may well be a better way. Colin -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-talk@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/CAL%3D0gLvrxc_eZqLw_K1u7t5c6RtmRSO2_Y8zU7nwj0%3Dx5cNpog%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
