Reorganise configuration

Author: itskingori

app/config.yml.erb

@@ -10,12 +10,9 @@
 <% if ENV['GEMSTASH_DB_ADAPTER'] == 'mysql2' %>
 # mysql2 adapter
 :db_adapter: mysql2
-:db_url: {}
+:db_url: <%= "mysql2://#{ENV['GEMSTASH_DB_HOST']}:#{ENV['GEMSTASH_DB_PORT']}/#{ENV['GEMSTASH_DB_DATABASE']}" %>
 :db_connection_options:
   :adapter: 'mysql2'
-  :host: <%= ENV['GEMSTASH_DB_HOST'] %>
-  :port: <%= ENV['GEMSTASH_DB_PORT'] %>
-  :database: <%= ENV['GEMSTASH_DB_DATABASE'] %>
   :user: <%= ENV['GEMSTASH_DB_USERNAME'] %>
   :password: <%= ENV['GEMSTASH_DB_PASSWORD'] %>
   :max_connections: <%= ENV['GEMSTASH_PUMA_THREADS'].to_i + 1 %>
@@ -24,6 +21,7 @@
 :db_adapter: postgres
 :db_url: <%= "postgres://#{ENV['GEMSTASH_DB_HOST']}:#{ENV['GEMSTASH_DB_PORT']}/#{ENV['GEMSTASH_DB_DATABASE']}" %>
 :db_connection_options:
+  :adapter: 'postgres'
   :user: <%= ENV['GEMSTASH_DB_USERNAME'] %>
   :password: <%= ENV['GEMSTASH_DB_PASSWORD'] %>
   :max_connections: <%= ENV['GEMSTASH_PUMA_THREADS'].to_i + 1 %>