Ruby-on-rails 在 RoR 中回滚生成的控制器/模型
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rollback generated controller/model in RoR
提问by Itay Moav -Malimovka
I created, using the scaffolding, a model and controller files.
Later I discovered it would be a good idea to create the tables in the DB first...
My question, How can I role back the generated files and regenerate them now, that I have the tables in the DB?
我使用脚手架创建了一个模型和控制器文件。
后来我发现首先在数据库中创建表是个好主意......
我的问题是，我如何重新生成生成的文件并立即重新生成它们，我在数据库中有这些表？
I just started learning RoR, so right now I am not interested in best practices, just learning the tool box this FW (RoR) comes with.
我刚开始学习 RoR，所以现在我对最佳实践不感兴趣，只是学习这个 FW (RoR) 附带的工具箱。
And, do you have a recommendation for a good tutorial? I do know to use google, it is just that search engines don't know, yet (working on that), how to grade tutorials.
Edit:For my last question I found Learning Ruby on Rails
而且，你有什么好的教程推荐吗？我知道使用谷歌，只是搜索引擎不知道，但（正在努力），如何给教程评分。
编辑：对于我的最后一个问题，我发现了Learning Ruby on Rails
回答by stephenmurdoch
try
尝试
rails destroy scaffold XXXXX
one thing that I find puzzling though is that you said "Later I discovered it would be a good idea to create the tables in the DB first..."
我觉得令人费解的一件事是你说“后来我发现首先在数据库中创建表是个好主意......”
Well, rails creates a migrationfile for you when you run the generator in the first place, and this file will create your DB tables and fields when you run it using rake db:migrate
好吧，当您首先运行生成器时，rails 会为您创建一个迁移文件，当您使用该文件运行它时，该文件将创建您的数据库表和字段rake db:migrate
PS - here's a few good tutorials for you:
PS - 这里有一些很好的教程给你：
回答by ultrakain
You can rollback controller.
您可以回滚控制器。
rails destroy controller [controller]
回答by fengolly
You can delete all the files Rails created -- just look at the printout on your command line, see what files rails created, and delete them.
您可以删除 Rails 创建的所有文件——只需查看命令行上的打印输出，查看 rails 创建的文件，然后删除它们。
I don't know why you would want to create all the tables in the db, but that's fine, I guess. I prefer to let rails do it. Either way, Rails won't mind. You can always add / change fields using Rails, even if you created the tables outside Rails.
我不知道您为什么要在 db 中创建所有表，但我想这很好。我更喜欢让 Rails 来做。无论哪种方式，Rails 都不会介意。您始终可以使用 Rails 添加/更改字段，即使您在 Rails 之外创建了表。
Ryan Bates' Railscasts are excellent tutorials.
Ryan Bates 的 Railscasts 是很好的教程。
