refactor: remove Postal.database_url

config/database.yml

@@ -1,8 +1,18 @@
+default: &default
+  adapter: mysql2
+  encoding: <%= Postal.config.main_db.encoding %>
+  pool: <%= Postal.config.main_db.pool_size %>
+  username: <%= Postal.config.main_db.username %>
+  password: <%= Postal.config.main_db.password %>
+  host: <%= Postal.config.main_db.host %>
+  port: <%= Postal.config.main_db.port %>
+  database: <%= Postal.config.main_db.database %>
+
 development:
-  url: <%= Postal.database_url %>
+  <<: *default
 
 production:
-  url: <%= Postal.database_url %>
+  <<: *default
 
 test:
-  url: <%= Postal.database_url %>
+  <<: *default

config/postal.defaults.yml

@@ -31,6 +31,7 @@ main_db:
   password: <%= ENV.fetch('MAIN_DB_PASSWORD', '') %>
   database: <%= ENV.fetch('MAIN_DB_DATABASE', 'postal') %>
   pool_size: <%= ENV.fetch('MAIN_DB_POOL_SIZE', '5') %>
+  encoding: <%= ENV.fetch('MAIN_DB_ENCODING', 'utf8mb4') %>
 
 message_db:
   host: <%= ENV.fetch('MESSAGE_DB_HOST', '127.0.0.1') %>