rails generate scaffold command in Rails provides a quick and easy way to generate the major building pieces for your Rails app. It will generate the MVC (model, view, and controller) parts for your domain along with CRUD support. All in a single command.
For example, if you want to generate the basic CRUD functionality for the
Post model in your Rails blog, run the following scaffold command.
$ bin/rails generate scaffold Post name:string content:text
Rails will create a bunch of new folders and files in your application, and also edit the
What if you made a mistake? Don't worry. Rails provides a simple way to undo the scaffold.
How to Undo Rails Scaffold Command
Simply run the following command:
$ bin/rails destroy scaffold Post
This will delete the files created by the scaffolding process.
If you had applied the migration generated by the scaffold, first rollback it using the
db:rollback command, and then destroy the migration.
$ bin/rails db:rollback $ bin/rails destroy scaffold Post
Also remember that the
destroy scaffold command won't undo any other changes you made after generating the scaffold. So keep in mind to undo them all if needed.
In fact, you can use the
destroy command to undo any
generate command in Rails. For example, if you generated a helper using
$ bin/rails generate helper Payment
You can undo it using this command:
$ bin/rails destroy helper Payment
Hope that helps.
That's a wrap. I hope you found this article helpful and you learned something new.
As always, if you have any questions or feedback, didn't understand something, or found a mistake, please leave a comment below or send me an email. I reply to all emails I get from developers, and I look forward to hearing from you.
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