Colin Law wrote in post #1182787: > On 12 April 2016 at 08:52, Naveed Alam <li...@ruby-forum.com> wrote: >>> As a beginner I suggest you work right through a good tutorial in >>> order to get the basics or Rails. The one I suggest is >>> railstutorial.org (which is free to use online). >>> >>> Colin >> >> Thanks colin I already tried this but it give me the error: >> >> undefined method `company_name' for nil:NilClass > > Please quote the previous message when posting, this is a mailing list > not a forum (though you may be accessing it via a forum like > interface). > > If the statement > category.supplier.company_name > gives the error undefined method `company_name' for nil:NilClass then > that means that category.supplier is nil, or to put it another way, it > means that category does not have an associated supplier. You > probably need something like > <td><%= category.supplier.company_name if category.supplier %></td> > which will only attempt to determine the name if category.supplier is > not nil > > Colin
Sory none of them worked, pls chk my app, https://www.dropbox.com/s/siioqa8q8xkdf46/tPOS.zip?dl=0 thanks. -- Posted via http://www.ruby-forum.com/. -- 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/f7a208acc016c2f5399a82b98c4bccab%40ruby-forum.com. For more options, visit https://groups.google.com/d/optout.
