In their example,
def create
@product = Product.new(params[:product])
@details = Detail.new(params[:details])
Product.transaction do
@product.save!
@details.product = @product
@details.save!
redirect_to :action => :show, :id => @product
end
rescue ActiveRecord::RecordInvalid => e
@details.valid? # force checking of errors even if products failed
render :action => :new
end
they assign the product to the details, @details.product = @product. When
you do that with related ActiveRecord objects, ActiveRecord takes care of
setting the IDs for you. In this case, @details.product_id will be set to @
product.id.
Regards,
Craig
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