Correct MySQL configuration for Ruby on Rails Database.yml file

Question

I have this configuration:

development:
  adapter: mysql2
  encoding: utf8
  database: my_db_name
  username: root
  password: my_password
  host: mysql://12         


        

Answer 1

If you can have an empty config/database.yml file then define ENV['DATABASE_URL'] variable, then It will work

$ cat config/database.yml
 
$ echo $DATABASE_URL
mysql://root:my_password@127.0.0.1:3306/my_db_name

for Heroku: heroku config:set DATABASE_URL='mysql://root:my_password@host.com/my_db_name'