在Rails控制台中查看回滚错误的原因 [英] View cause of rollback error in rails console

问题描述

我正在尝试通过Rails控制台更新记录，并遇到回滚错误：

I'm trying to update a record through the rails console and am getting a rollback error:

Project.find(118).update_attributes(:featured=>true)
  Project Load (2.6ms)  SELECT "projects".* FROM "projects" WHERE "projects"."id" = $1 LIMIT 1  [["id", 118]]
   (2.8ms)  BEGIN
   (1.3ms)  ROLLBACK
=> false

如何查看错误源？我能够更新其他记录的属性，所以我想检查一下为什么该特定记录不起作用。

How can I view the source of the error? I'm able to update the attribute for other records, so I'd like to inspect why this particular record isn't working.

推荐答案

您的 Project 实例可能无效。要查看阻止保存的错误，您可以输入：

Your Project instance is probably invalid. To see what error prevented it from saving, you can type:

project = Project.find 118
project.assign_attributes(featured: true)
project.valid?
project.errors.full_messages

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