snippetbashTip
rails generate — Generate new Rails templates in an existing project. More information: <https://guides.rubyonrails.o
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railscommandrails generatenewcliexistingtemplatesgenerate
Problem
How to use the
rails generate command: Generate new Rails templates in an existing project. More information: <https://guides.rubyonrails.org/command_line.html#bin-rails-generate>.Solution
rails generate — Generate new Rails templates in an existing project. More information: <https://guides.rubyonrails.org/command_line.html#bin-rails-generate>.List all available generators:
rails generateGenerate 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}}Code Snippets
List all available generators
rails generateGenerate 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}}Context
tldr-pages: common/rails generate
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