0
我有兩個型號,一個Person
和一個Brain
。 Person
has_one
:brain
和Brain
belongs_to
:person
。我想通過/ person/update分配Brain
屬性。此模型爲何不顯示可訪問的屬性?
class Person < ActiveRecord::Base
has_one :brain
attr_accessible :name
attr_accessible :brain
accepts_nested_attributes_for :brain
end
class Brain < ActiveRecord::Base
belongs_to :person
attr_accessible :weight_kg
attr_accessible :person
accepts_nested_attributes_for :person
end
在Rails的控制檯,我可以分配到Person.brain
:(並通過控制檯)
> p = Person.first
=> #<Person id: 1, name: "Dave", created_at: "2013-02-14 20:17:35", updated_at: "2013-02-14 20:17:35">
> p.brain.weight_kg = 5.0
Brain Load (0.2ms) SELECT "brains".* FROM "brains" WHERE "brains"."person_id" = 1 LIMIT 1
=> 5.0
> p.save
(0.6ms) begin transaction
(0.6ms) UPDATE "brains" SET "weight_kg" = 5.0, "updated_at" = '2013-02-14 20:18:11.010544' WHERE "brains"."id" = 1
(317.6ms) commit transaction
=> true
通過網頁形式我不能,因爲陳腐錯誤的,「無法mass-assign protected attributes:brain_attributes「。
我attr_accessible :weight_kg
在Brain
,並在Person
我有accepts_nested_attributes_for :brain
,所以我(錯誤地)希望這個工作。
我錯過了什麼?
感謝新星。原來我在這個設置上還有其他問題,但是你的建議讓我知道了。 – 2013-02-15 15:44:43