Manage the Ruby versions in your computer.
| Command | Description |
|---|---|
rvm get stable |
Update RVM. |
rvm list |
Print installed versions. |
rvm list known |
Print all available versions. |
rvm install 2.6.5 |
Install the specified version of Ruby. |
rvm use 2.6.5 |
Set the specified version as current version. |
rvm --default use 2.6.5 |
Change default version. |
rvm remove 2.6.5 |
Uninstall the specified version. |
Package manager. Write gem 'pg' in Gemfile to use PostgreSQL in your project. This guide is compatible with the 5.2.4.2 version of Rails.
| Command | Description |
|---|---|
gem install rails -v 5.2.4.2 |
Install the specified version of Rails. |
rails -v |
Print Rails version. |
bundle install |
Install Gemfile gems. |
rails new name -d postgresql |
Create name app using PostgreSQL as model. |
rails generate controller name action1 ... |
Generate name controller with opcional actions. |
rails generate model name attr_1:tipo ... |
Create name table in the database. |
rails server |
Start the app server. |
rails db:migrate |
Run the migrations in the app database. |