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POActiveRecord Build or Create method requiring passing parent object in as argument
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Id
15764682
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1
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CreationDate
2013-04-02T12:55:33.377
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2013-04-02T21:12:28.423
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2013-04-02T15:39:07.680
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text
Body
It was my understanding that the build/create method on child object within a model would automatically create the relationship. However, while I use a <code>validates</code> on both the parent and child object, I can't save the parent object, unless I explicitly pass in the parent object in the child build/create method Parent Class <pre><code>class Order < ActiveRecord::Base attr_accessible :tax, :total has_many :order_lines validates :user, presence: true validates :order_lines , presence: true end </code></pre> Child Class <pre><code>class OrderLine < ActiveRecord::Base attr_accessible :order, :product, :qty belongs_to :order belongs_to :product ... ... validates :order, presence: true end </code></pre> PROBLEM So I get errors if I try to: <pre><code>order.order_lines.build(product: product) order.save => #error for order_lines, order can't be blank #or order.order_lines.create(product: product) => # throws same error </code></pre> But I can do the following successfully: <pre><code>order.order_lines.build(product: product, order: order) order.save => #true #or order.order_lines.create(product: product, order: order) => #true </code></pre> This causes me further problems with FactoryGirl and creating tests. Am I wrong and misunderstanding that you have to explicitly pass in the parent object? Rails vs: 3.2.11 <a href="http://api.rubyonrails.org/classes/ActiveRecord/AutosaveAssociation.html" rel="nofollow">AR API documenation</a>
Tags
<ruby-on-rails-3><activerecord><rails-activerecord>
Title
ActiveRecord Build or Create method requiring passing parent object in as argument
singulars
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1. This table or related slice is empty.
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1. PTQuestion
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1. USVivekVarade123
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1. USpghtech
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1. PO
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