Rails STI and form_forRails STI and form_forWritten August 14, 2012. Tagged Ruby on Rails, STI. Rails' form_for conveniently uses "record identification" to figure out the correct URL based on the model: = form_for([:admin, @item]) do |f| = f.text_field :nameIt's also used to figure out the HTTP verb, the field name prefixes, HTML classes and HTML id. So this form would POST to admin_items_path for a new record, or PUT
