Rails 3.2.3:如何批量分配关联模型? [英] Rails 3.2.3: How to mass assign associated models?
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问题描述
我有一个 rails 3.2.3,我有一个带有两个嵌套模型的表单,当我尝试提交表单时,出现此错误:
I have a rails 3.2.3, I have a form with two nested models, when I try to submit the form, I get this error:
ActiveModel::MassAssignmentSecurity::Error in ExperimentsController#create
Can't mass-assign protected attributes: descriptions_attributes, circuits_attributes
这是我的模型:
class Experiment < ActiveRecord::Base
attr_accessible :title, :intro_text
has_many :circuits, :dependent => :destroy
has_many :descriptions, :dependent => :destroy
accepts_nested_attributes_for :descriptions, :reject_if => lambda { |a| a[:data].blank? }, :allow_destroy => true
accepts_nested_attributes_for :circuits, :reject_if => lambda { |a| a[:data].blank? }, :allow_destroy => true
end
class Circuit < ActiveRecord::Base
attr_accessible :data, :title
belongs_to :experiment
end
class Description < ActiveRecord::Base
attr_accessible :data, :title
belongs_to :experiment
end
我可以为字段添加 attr_accessible
,但是,嵌套模型呢?
I can add attr_accessible
for a field, but, what about the nested models ?
推荐答案
尝试添加:
class Experiment < ActiveRecord::Base
attr_accessible :title, :intro_text, :descriptions_attributes, :circuits_attributes
[...]
在你的实验模型中.
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