Rails 5，Rspec:在架构中找不到环境数据 [英] Rails 5, Rspec: Environment data not found in the schema

问题描述

将 Rails 应用升级到 Rails 5 后，运行 RSpec 测试出现以下错误:

After upgrading a Rails app to Rails 5, running RSpec tests gives me the following error:

rails aborted!
ActiveRecord::NoEnvironmentInSchemaError: 

Environment data not found in the schema. To resolve this issue, run: 

    bin/rails db:environment:set RAILS_ENV=test

但是，那个 bin 不存在，我似乎无法用 bundle binstubs rails 或 rake rails:update:bin.

However, that bin does not exist and I can't seem to generate it with bundle binstubs rails or with rake rails:update:bin.

我也试过:

rails db:environment:set RAILS_ENV=test
rake db:environment:set RAILS_ENV=test

Github 上有一个相关问题这里.

There is a related issue on Github here.

我该如何解决这个错误?

How can I address this error?

推荐答案

用于生成 binstubs 的新 Rails 5 命令:

New Rails 5 command to generate binstubs:

rails app:update:bin

允许我按照错误提示运行解决方案:

Allows me to run the solution as the error suggested:

bin/rails db:environment:set RAILS_ENV=test

来自@max 评论的提示:如果您正在使用 database_cleaner 并且此错误不断弹出，则将您的配置更改为:

Tip from @max comment: If you are using database_cleaner and this error keeps popping up then change your config to:

DatabaseCleaner.clean_with(
  :truncation,
  except: %w(ar_internal_metadata)
)

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