I am studying a guide in which scaffold is mentioned. I don't understand what it is.
Is it sort of built-in framework?
Scaffolding in Ruby on Rails refers to the auto generation of a simple set of a model, views and controller usually for a single table. For example: user@localhost$ ./scripts/generate scaffold users. Would create a full CRUD (create, read, update, delete) web interface for the Users table.
One of the products of the rails generate scaffold command is a database migration. Migrations are Ruby classes that are designed to make it simple to create and modify database tables. Rails uses rake commands to run migrations, and it's possible to undo a migration after it's been applied to your database.
To generate a fully working scaffold for a new object, including model, controller, views, assets, and tests, use the rails g scaffold command. Then you can run rake db:migrate to set up the database table. Then you can visit http://localhost:3000/widgets and you'll see a fully functional CRUD scaffold.
see rails guide for the explanation
Rails scaffolding is a quick way to generate some of the major pieces of an application. If you want to create the models, views, and controllers for a new resource in a single operation, scaffolding is the tool for the job.
Scaffolding in Ruby on Rails refers to the auto generation of a simple set of a model, views and controller usually for a single table.
For example:
user@localhost$ ./scripts/generate scaffold users
Would create a full CRUD (create, read, update, delete) web interface for the Users table. Of course features like hashing the password, uploading images, etc... are not handled and must be added to the auto-generated code.
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