Sample config/database.yml from Rails. Postgres, MySQL, and SQLite

I'm not convinced about the sqlite-database.yml

@alexanderadam

config/database.sqlite3.yml

# SQLite version 3.x
#   gem install sqlite3-ruby (not necessary on OS X Leopard)
development:
  adapter: sqlite3
  database: db/development.sqlite3
  pool: 5
  timeout: 5000

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  adapter: sqlite3
  database: db/test.sqlite3
  pool: 5
  timeout: 5000

production:
  adapter: sqlite3
  database: db/production.sqlite3
  pool: 5
  timeout: 5000

Why you using unicode instead of utf8 in postgres.database.yml?

@Pserg it doesn't matter, unicode is just a standard

This is a huge help. thanks!

Hi,
Is it possible to use the same Postgres database name for development and production? E.g.

sample_postgres in the two environments?

if yes: How to ensure the same data content when running in production?

Author

Is it possible to use the same Postgres database name for development and production? E.g.

@dangerrg Yes, nothing will prevent that

if yes: How to ensure the same data content when running in production?

I don't know what you mean

I am using Rails 5.2 and mysql2 gem. Even though i am using actual host name in my database.yml for production config, when i run the command RAILS_ENV=production rake db:migrate it is taking host name as local ip address of my machine and shows below error.

 rake aborted!
 ActiveRecord::StatementInvalid: Mysql2::Error: CREATE command denied to 
 user 'username'@'lamu02rr8r9fvh7.xxx.com' for table 
 'schema_migrations': CREATE TABLE `schema_migrations` (`version` 
 varchar(255) NOT NULL PRIMARY KEY)
 /Users/egoutham/.rvm/gems/ruby-2.5.3/gems/mysql2 
 0.4.10/lib/mysql2/client.rb:120:in `_query'
 /Users/egoutham/.rvm/gems/ruby-2.5.3/gems/mysql2- 
 0.4.10/lib/mysql2/client.rb:120:in `block in query'
 /Users/egoutham/.rvm/gems/ruby-2.5.3/gems/mysql2- 
 0.4.10/lib/mysql2/client.rb:119:in `handle_interrupt'
 /Users/egoutham/.rvm/gems/ruby-2.5.3/gems/mysql2- 
  0.4.10/lib/mysql2/client.rb:119:in `query'

And when i run the below command it shows different error.

  RAILS_ENV=production rake db:create
  rake aborted!
  ActiveRecord::StatementInvalid: Mysql2::Error: Access denied for user 
  'username'@'%' to database 'dashboard': CREATE DATABASE `dashboard` 
  DEFAULT CHARACTER SET `utf8mb4`
  /Users/egoutham/.rvm/gems/ruby-2.5.3/gems/mysql2- 
  0.4.10/lib/mysql2/client.rb:120:in `_query'
  /Users/egoutham/.rvm/gems/ruby-2.5.3/gems/mysql2- 
  0.4.10/lib/mysql2/client.rb:120:in `block in query'
  /Users/egoutham/.rvm/gems/ruby-2.5.3/gems/mysql2- 
  0.4.10/lib/mysql2/client.rb:119:in `handle_interrupt'
  /Users/egoutham/.rvm/gems/ruby-2.5.3/gems/mysql2- 
  0.4.10/lib/mysql2/client.rb:119:in `query'