我遇到了Minitest和相关ActiveRecord模型(Rails 4.2.3)的灯具问题。Minitest:相关AR模型的灯具导致ActiveRecord :: InvalidForeignKey:PG :: ForeignKeyViolation运行测试时
这里有两种型号:
# vanguard_fund.rb
class VanguardFund < ActiveRecord::Base
belongs_to :benchmark_fund
...
end
# benchmark_fund.rb
class BenchmarkFund < ActiveRecord::Base
has_many :vanguard_funds
end
漂亮的直线前进。现在,这里的灯具:
# vanguard_funds.yml
vf1:
name: Vanguard Fund 1
benchmark_fund: bm1
# benchmark_funds.yml
bm1:
name: Benchmark Fund 1
现在运行任何测试时,我发现了以下错误:
ERROR["test_#name_returns_the_name_of_the_VanguardFund", BaseTest, 2015-06-08 13:39:28 +0000]
test_#name_returns_the_name_of_the_VanguardFund#BaseTest (1433770768.22s)
ActiveRecord::InvalidForeignKey: ActiveRecord::InvalidForeignKey: PG::ForeignKeyViolation: ERROR: insert or update on table "vanguard_funds" violates foreign key constraint "fk_rails_994ab6fe75"
DETAIL: Key (benchmark_fund_id)=(479852872) is not present in table "benchmark_funds".
: INSERT INTO "vanguard_funds" ("name", "created_at", "updated_at", "id", "benchmark_fund_id") VALUES ('Vanguard Fund 1', '2015-09-04 16:48:23', '2015-09-04 16:48:23', 263706224, 479852872)
test_after_commit (0.4.1) lib/test_after_commit.rb:15:in `block in transaction_with_transactional_fixtures'
test_after_commit (0.4.1) lib/test_after_commit.rb:9:in `transaction_with_transactional_fixtures'
有是基准基金ID(479852872),但它似乎像该记录在创建VanguardFund时没有在BenchmarkFunds表中找到?
有什么建议吗?
它是否在'VanguardFund'之前加载'BenchmarkFund'? –
@ muistooshort我不知道夹具加载是如何工作的,但我会这样认为,因为它首先按字母顺序排列。事实上,假设ActiveRecord比依靠字母顺序来处理这种事情更复杂,所以我非常难以理解可能发生的事情 – sixty4bit