Hi walter, thanks for answering question. I've read about polymorphic relationships and I've tried it before, but in my case, I should use database which is already used in other project and I make new rails app with the database. so I can' t change database structure easily.
2014年1月17日金曜日 23時25分24秒 UTC+9 Walter Lee Davis: > > Have you read anything about polymorphic relationships yet? That's a good > place to start. Rails Guides, ActiveRecord Relations, read the whole page, > but pay attention to the section on Polymorphism. > > Walter > > On Jan 17, 2014, at 4:55 AM, Takashi Nakagawa wrote: > > > > > > > -- > > 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 [email protected] <javascript:>. > > To post to this group, send email to > > [email protected]<javascript:>. > > > To view this discussion on the web visit > https://groups.google.com/d/msgid/rubyonrails-talk/ecc2d9dd-fb18-4248-a50c-4fa9c36721b1%40googlegroups.com. > > > > For more options, visit https://groups.google.com/groups/opt_out. > > -- 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 [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/6e224b17-820d-451e-be23-96b70cbeabf6%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
