notice.rb: has_one :active_comment_relationship, class_name: "Commentrelationship", foreign_key: "commenter_id", dependent: :destroy has_one :supernotice, through: :active_comment_relationship, source: : commentee accepts_nested_attributes_for :active_comment_relationship
_notice.html.erb: <%= form_tag( {controller: "notices", action: "create"}, method: "post", class: "comment_form", multipart: true ) do %> <%= hidden_field_tag :callsign, @character.callsign %> <%= hidden_field_tag "notice[active_comment_relationship][commentee_id]", notice.id %> . . notices_controller.rb: @notice = @character.notices.build(notice_params) if @notice.save if !params[:notice][:active_comment_relationship][:commentee_id].nil? # THE OFFENDING LINE @notice.create_comment(params[:notice][:active_comment_relationship ][:commentee_id]) end end def notice_params params.require(:notice).permit( :content, :picture, :latitude, : longitude, active_comment_relationship_attributes: [:commentee_id] ) end The code above gives the following error: undefined method `[]' for nil:NilClass Sometimes a notice is submitted with a blank/nil :commentee_id, so I would have thought !params[:notice][:active_comment_relationship][:commentee_id]. nil? would have worked. How do I write this correctly? How do you correctly access nested parameters? -- 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/f1c0a76e-2e38-4577-b830-5a97e596a016%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.