Wednesday
Apr302008
Rails nested resources and form_for
Wednesday, April 30, 2008 at 1:42PM
Ah ha! I was working with Rory creating a Rails form backed by a nested resource the other day and we had code like:
That code smelled really bad, having to put in the
Solution:
The array of objects makes this much cleaner.
<% form_for(:participant, @participant, :url => poll_participant_path(@poll, @participant), :html => {:method => :put}) do |f| %>
#...
<% end %>That code smelled really bad, having to put in the
:url and the :html felt really wrong.Solution:
<% form_for([@poll, @participant]) do |f| %>
#...
<% end %>The array of objects makes this much cleaner.
Reader Comments (11)
Excellent! So simple, and yet it tripped me up for too long... Thanks for posting!
But what if your nested resource has a name_prefix of nil? Then form_for will generate a undefined method when trying to generate the correct URL method.
for example:
map.resources :networks do |network|
network.resources :channels, :name_prefix => nil
end
This setup will generate a undefined method because it will try and call "network_channel_path"
Mike,
seems like a fair point. In what case would you set the name_prefix to nil?
Thanks,
-Tim
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