::加載ActiveModel :: MassAssignmentSecurity錯誤看不到的地方，使變量訪問

Question

我收到以下錯誤，當我創建從我形成一個新的對象：Can't mass-assign protected attributes: feature_ids。在我的模型，我有以下：

class Outboard < ActiveRecord::Base 
    attr_accessible :make, :model, :price, :features 
    has_many :features, :through => :Outboardfeature 
    has_many :Outboardfeature 
end 

class Feature < ActiveRecord::Base 
    attr_accessible :name 
    has_many :outboards, :through => :Outboardfeature 
    has_many :Outboardfeature 
end 

class Outboardfeature < ActiveRecord::Base 
    attr_accessible :feature_id, :outboard_id 
    belongs_to :feature, :class_name => "Feature", :foreign_key => "feature_id" 
    belongs_to :outboard, :class_name => "Outboard", :foreign_key => "outboard_id" 
end 

我看不到的地方，使feature_ids從錯誤中訪問在我的舷外機模型我已經做功能訪問。

Answer 1

將:feature_ids添加到舷外機型attr_accessible。