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我正在尝试使用accepts_nested_attributes来创建一个复杂的表单。基于该Nested Attributes文档,examples,等等,我已经建立了模型,像这样:accepted_nested_attributes_for undefined方法错误
用户模式:
require 'digest'
class User < ActiveRecord::Base
attr_accessor :password
attr_accessible :first_name, :last_name, :email, :password,
:password_confirmation, :ducks_attributes
has_many :ducks, :class_name => 'Duck'
accepts_nested_attributes_for :ducks
.
.
.
end
鸭型号:
class Duck < ActiveRecord::Base
belongs_to :user
accepts_nested_attributes_for :user
end
但是,当我尝试访问控制台中的嵌套属性,我得到
ruby-1.9.2-p290 :003 > User.first.ducks_attributes
NoMethodError: undefined method `ducks_attributes' for #<User:0x007ffc63e996e0>
from ~/.rvm/gems/[email protected]/gems/activemodel-3.0.9/lib/active_model/attribute_methods.rb:392:in `method_missing'
from ~/.rvm/gems/[email protected]/gems/activerecord-3.0.9/lib/active_record/attribute_methods.rb:46:in `method_missing'
from (irb):3
from ~/.rvm/gems/[email protected]/gems/railties-3.0.9/lib/rails/commands/console.rb:44:in `start'
from ~/.rvm/gems/[email protected]/gems/railties-3.0.9/lib/rails/commands/console.rb:8:in `start'
from ~/.rvm/gems/[email protected]/gems/railties-3.0.9/lib/rails/commands.rb:23:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
什么我做错了吗?提前谢谢了。
FWIW,我正在使用Rails 3.0.9 – Dan