I'm trying to get a nested model forms view working. As far as I can tell I'm doing everything right, but it still does not work.
I'm on Rails 3 beta 3.
My models are as expected:
class Recipe < ActiveRecord::Base
has_many :ingredients, :dependent => :destroy
accepts_nested_attributes_for :ingredients
attr_accessible :name
end
class Ingredient < ActiveRecord::Base
attr_accessible :name, :sort_order, :amount
belongs_to :recipe
end
I can use Recipe.ingredients_attributes= as expected:
recipe = Recipe.new
recipe.ingredients_attributes = [ {:name=>"flour", :amount=>"1 cup"}, {:name=>"sugar", :amount=>"2 cups"}]
recipe.ingredients.size # -> 2; ingredients contains expected instances
However, I cannot create new object graphs using a hash of parameters as shown in the documentation:
params = { :name => "test", :ingredients_attributes => [ {:name=>"flour", :amount=>"1 cup"}, {:name=>"sugar", :amount=>"2 cups"}] }
recipe = Recipe.new(params)
recipe.name # -> "test"
recipe.ingredients # -> []; no ingredient instances in the collection
Is there something I'm doing wrong here? Or is there a problem in the Rails 3 beta?
Update
It's a bug caused by attr_accessible :name in Recipe. It's not Rails3 specific.