New Rails 6 Project

new_rails_6_project.md

Basic Rails setup (version 6 + postgreSQL + rspec)

1. Make sure you have rails ~> 6.0.0

$ rails -v

If you don't, install rails

$ gem install rails

2. Create a new rails project using postgres as database

$ rails new <project-name> -T --database=postgresql

-T prevents minitest from being installed, we will use rspec instead

3. Go to the app's Gemfile and check both ruby and rails versions

Rails 6 depends on ruby (>= 2.5.0)

You should see something similar to this depending on your local ruby and rails versions

ruby '3.0.1'

gem 'rails', '~> 6.0.3'

4. Add database configuration to .gitignore

# Git ignore database configuration
/config/database.yml

5. Add rspec-rails to both the :development and :test groups of your app’s Gemfile:

Run against the latest stable release

group :development, :test do
  gem 'rspec-rails', '~> 3.8'
end

Update Gemfile.lock

$ bundle

Install

$ rails generate rspec:install

This will generate .rspec, spec/rails_helper.rb, spec/spec_helper.rb

Require rails_helper in the .rspec file. This way you don't have to manually add it to every single test file. This is what your .rspec file should look like:

--require spec_helper
--require rails_helper

6. Setup db

$ rake db:setup

You're ready to go!

You can now start creating your models, controllers, views, etc