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ruby-on-rails - FactoryGirl 关联 ID 为 nil

问题描述

我正在尝试将 factory_girl 与关联一起使用。我有 2 个模型：account_info 和 person。AccountInfo 属于一个人，我的 account_info 工厂看起来像：

FactoryGirl.define do
  factory :account_info do
    entity_type 1
    account_key { Faker::Twitter.user[:id] }
    association :entity_id, factory: [:person]
    association :social_media_site_id, factory: [:twitter]
  end
end

根据文档：

You can also specify a different factory or override attributes:

factory :post do
  # ...
  association :author, factory: :user, last_name: "Writely"
end
The behavior of the association method varies depending on the build strategy used for the parent object.

# Builds and saves a User and a Post
post = create(:post)
post.new_record?        # => false
post.author.new_record? # => false

# Builds and saves a User, and then builds but does not save a Post
post = build(:post)
post.new_record?        # => true
post.author.new_record? # => false

它创建记录 Person 但 AccountInfo entity_id 保持为零。为什么？

d = FactoryGirl.create(:account_info)
d.reload
  AccountInfo Load (0.5ms)  SELECT  "account_infos".* FROM "account_infos" WHERE "account_infos"."id" = $1 LIMIT $2  [["id", 443], ["LIMIT", 1]]
 => #<AccountInfo id: 443, entity_type: "legislator", account_key: "498133264559673104", social_media_site_id: nil, entity_id: nil, created_at: "2018-04-29 13:18:49", updated_at: "2018-04-29 13:18:49">

版本：

factory_girl_rails (4.9.0)
rails (5.1.6)
ruby (2.5.0)

标签： ruby-on-railsrspecfactory-bot

解决方案

奇怪的entity=是没有定义。您是否在 AccountInfo 模型上定义了关联？（例如belongs_to :entity）？如果是这样，那可能是问题（或类似问题）。

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