Rubyn on Rails 6: Adding database support to an existing Rest API Project-CodePudding

I'm working with Ruby on Rails in the creation process of an RestAPI, I create the application using this command:

rails _6.1.5_ new myproject --api

Now I need to add database support to the project, specifically I need to use PostgreSQL, so far I found this parameter but for new projects:

rails _6.1.5_ new myproject --api --database=postgresql

My question is: is there a way (parameter, command?) to add postgresql support to my existing project?

Thanks a lot

CodePudding user response：

If you want to change from sqlite to postgresql is simple, just add gem 'pg' to Gemfile, then bundle install and after that change the default section of your database.yml to:

default: &default
  adapter: postgresql
  encoding: unicode
  # For details on connection pooling, see Rails configuration guide
  # https://guides.rubyonrails.org/configuring.html#database-pooling
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>