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我有機型嵌套屬性保存錯誤
class Survey < ActiveRecord::Base
has_many :questions
acts_as_list
validates :title, :presence =>true
validates :short_description, :presence=>true
validates :description, :presence=>true
end
class Question < ActiveRecord::Base
belongs_to :survey
has_many :options
accepts_nested_attributes_for :options, :reject_if => lambda { |a| a[:title].blank? }, :allow_destroy => true
acts_as_list :scope=>:survey
end
class Option < ActiveRecord::Base
attr_accessible :title, :description, :position
belongs_to :question
acts_as_list :scope=>:survey
end
當我保存或更新的問題模型,可以產生一個錯誤
@question = Question.new(params[:question])
@question.save
@question = Question.find(params[:id])
@question.update_attributes(params[:question])
在它生成錯誤
NoMethodError (undefined method `survey_id' for #<Option:0xb332394>):
app/controllers/admin/questions_controller.rb:47:in `block in create'
app/controllers/admin/questions_controller.rb:46:in `create'
我這兩種情況下無法理解爲什麼它會產生此錯誤,因爲選項與調查沒有任何關係
感謝神。並感謝你。有錯字錯誤。 – 2011-03-27 15:29:02