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POnested attribute object is created three times instead of one
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copied!<p>I have three models, booking, room and travellers.</p> <p>Booking has many rooms room has many travellers</p> <p>Since I'm doing a multi-step wizard booking and rooms gets created first, the travellers are created later in the update action.</p> <p>This is the log for the update action: <a href="http://pastie.org/private/it7onlg8bnurqkgv6mptrq" rel="nofollow">http://pastie.org/private/it7onlg8bnurqkgv6mptrq</a></p> <p>And this is the relevant methods and actions for creating the travellers: </p> <h2>The view action</h2> <pre><code>def step3 @booking = Booking.find_by_random_url_key(params[:id]) @variant = @booking.variant @booking.rooms.collect {|room| room.number_of_persons.times {room.travellers.build} if room.travellers.blank?} render :partial => "bookings/partials/step3", :layout => "booking" end </code></pre> <p><strong>room.number_of_persons method just return an int.</strong></p> <h2>Relevant part of the update action</h2> <pre><code>.. elsif @booking.update_attributes(params[:booking]) && @booking.aasm_state == "step3" redirect_to booking_step4_url(@booking) @booking.next! .. </code></pre> <p><strong>next! is just a aasm transition</strong></p> <p>If I do a create in the console</p> <pre><code>Room.last.travellers.create(:forename => "john", :country_name => "Germany") </code></pre> <p>Only one object is created and even if I go back in the view and submit again he correctly updates the created object and does not create new ones.</p>

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