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  1. Mongoid
  2. MONGOID-1698

accepts_nested_attributes_for child validation not respected when relation is belongs_to

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    • Type: Icon: Task Task
    • Resolution: Done
    • 2.4.4
    • Affects Version/s: None
    • Component/s: None
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      When using accepts_nested_attributes_for in combination with a has_[one|many] relationship, any failed validations in the child specified are propagated upward to the parent, the document you're working with. This means the parent will never be valid if the child isn't.

      This doesn't work when accepts_nested_attributes_for is used in combination with a belongs_to relation though:

      class A
  include Mongoid::Document
  
  field :title, type: String
  validates_presence_of :title
  
  has_one :b, :inverse_of => :a
end

class B
  include Mongoid::Document
  
  belongs_to :a, :inverse_of => :b, :autosave => true
  accepts_nested_attributes_for :a
end

b = B.new   #=> #<B _id: 4f33f9abe58d4960b1000001, _type: nil, a_id: nil>

b.a_attributes = { :title => nil }
b.a         #=> #<A _id: 4f33fa70e58d4960b1000004, _type: nil, title: nil>
b           #=> #<B _id: 4f33fa48e58d4960b1000003, _type: nil, a_id: BSON::ObjectId('4f33fa70e58d4960b1000004')>

b.a.valid?  #=> false
b.valid?    #=> true

b.save      #=> true
b.reload.a  #=> nil

            Assignee:
            Unassigned Unassigned
            Reporter:
            DouweM Douwe Maan [X]
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              Created:
              Updated:
              Resolved: