Create a new Ruby on Rails application using MySQL instead of SQLite

Question

I want to create my Rails application with MySQL, because I like it so much. How can I do that in the latest version of Rails instead of the default SQLite?

Answer 1

Go to the terminal and write:

rails new <project_name> -d mysql

Answer 2

Use following command to create new app for API with mysql database

rails new <appname> --api -d mysql


  adapter: mysql2
  encoding: utf8
  pool: 5
  username: root
  password: 
  socket: /var/run/mysqld/mysqld.sock

Answer 3

On new project, easy peasy:

rails new your_new_project_name -d mysql

On existing project, definitely trickier. This has given me a number of issues on existing rails projects. This kind of works with me:

# On Gemfile:
gem 'mysql2',  '>= 0.3.18', '< 0.5' # copied from a new project for rails 5.1 :)
gem 'activerecord-mysql-adapter' # needed for mysql..

# On Dockerfile or on CLI:
sudo apt-get install -y  mysql-client libmysqlclient-dev 

Answer 4

rails -d mysql ProjectName

Answer 5

Create application with -d option

rails new AppName -d mysql

Answer 6

Just go to rails console and type:

rails new YOURAPPNAME -d mysql