tldr/pages/common/rails-generate.md

rails generate

Generate new Rails templates in an existing project. More information: https://guides.rubyonrails.org/command_line.html#rails-generate.

• List all available generators:

rails generate

• Generate a new model named Post with attributes title and body:

rails generate model {{Post}} {{title:string}} {{body:text}}

• Generate a new controller named Posts with actions index, show, new and create:

rails generate controller {{Posts}} {{index}} {{show}} {{new}} {{create}}

• Generate a new migration that adds a category attribute to an existing model called Post:

rails generate migration {{AddCategoryToPost}} {{category:string}}

• Generate a scaffold for a model named Post, predefining the attributes title and body:

rails generate scaffold {{Post}} {{title:string}} {{body:text}}