如何从 rails 控制台获取详细的错误消息? [英] How to get detailed error messages from rails console?

问题描述

假设我希望使用已经存在的电子邮件从控制台创建一个用户.如果我做 User.create(...)

Say I wish to create a user from console with an email which already exists. If I do User.create(...)

因为模型验证(本例中的唯一性).create 失败，rails 控制台的输出会说:rollback transaction (user is not saved)

Because of model validations (uniqueness in this case). create fails and the output in rails console will say: rollback transaction (user is not saved)

为了测试的目的.他们是我获得触发回滚的显式错误的一种方式吗?在这种情况下，它会说:回滚:电子邮件不是唯一的".

For the purpose of testing. Is their a way I can get the explicit error which triggered the rollback? In this case it would say something like: "ROLLBACK: email is not unique".

推荐答案

你也可以这样做:

User.create!

'bang' 将强制它向您显示错误，而无需其他步骤.

The 'bang' will force it to show you the errors without additional steps.

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