Remove adapter column from rails 8.1. Update configy.yml.erb to expose

a host:port combo for connections to the db in tests

Author: Austio

config.yml.erb

@@ -1,5 +1,8 @@
 username: <%= ENV['PERCONA_DB_USER'] || 'root' %>
-password: <%= ENV['PERCONA_DB_PASSWORD'] || '' %> 
-database: <%= ENV['PERCONA_DB_NAME'] || 'departure_test' %> 
-hostname: <%= ENV['PERCONA_DB_HOST'] || 'localhost' %>
-socket: <%= ENV['PERCONA_DB_SOCKET'] || '' %>
+password: <%= ENV['PERCONA_DB_PASSWORD'] || '' %>
+database: <%= ENV['PERCONA_DB_NAME'] || 'departure_test' %>
+host: <%= ENV['PERCONA_DB_HOST'] || 'localhost' %>
+port: <%= ENV['PERCONA_DB_PORT'] || 3306 %>
+<% if ENV['PERCONA_DB_SOCKET'] && !ENV['PERCONA_DB_SOCKET'].empty? %>
+socket: <%= ENV['PERCONA_DB_SOCKET'] %>
+<% end %>

lib/active_record/connection_adapters/rails_8_1_mysql2_adapter.rb

@@ -9,12 +9,6 @@ module ConnectionAdapters
     class Rails81Mysql2Adapter < ActiveRecord::ConnectionAdapters::Mysql2Adapter
       TYPE_MAP = Type::TypeMap.new.tap { |m| initialize_type_map(m) } if defined?(initialize_type_map)
 
-      class Column < ActiveRecord::ConnectionAdapters::MySQL::Column
-        def adapter
-          Rails81Mysql2Adapter
-        end
-      end
-
       # https://github.com/departurerb/departure/commit/f178ca26cd3befa1c68301d3b57810f8cdcff9eb
       # For `DROP FOREIGN KEY constraint_name` with pt-online-schema-change requires specifying `_constraint_name`
       # rather than the real constraint_name due to to a limitation in MySQL
@@ -33,8 +27,6 @@ def visit_DropForeignKey(name) # rubocop:disable Naming/MethodName
         end
       end
 
-      extend Forwardable
-
       include ForAlterStatements unless method_defined?(:change_column_for_alter)
 
       ADAPTER_NAME = 'Percona'.freeze

lib/active_record/connection_adapters/rails_8_1_trilogy_adapter.rb

@@ -7,14 +7,6 @@
 module ActiveRecord
   module ConnectionAdapters
     class Rails81TrilogyAdapter < ActiveRecord::ConnectionAdapters::TrilogyAdapter
-      TYPE_MAP = Type::TypeMap.new.tap { |m| initialize_type_map(m) } if defined?(initialize_type_map)
-
-      class Column < ActiveRecord::ConnectionAdapters::MySQL::Column
-        def adapter
-          Rails81TrilogyAdapter
-        end
-      end
-
       # https://github.com/departurerb/departure/commit/f178ca26cd3befa1c68301d3b57810f8cdcff9eb
       # For `DROP FOREIGN KEY constraint_name` with pt-online-schema-change requires specifying `_constraint_name`
       # rather than the real constraint_name due to to a limitation in MySQL
@@ -33,8 +25,6 @@ def visit_DropForeignKey(name) # rubocop:disable Naming/MethodName
         end
       end
 
-      extend Forwardable
-
       include ForAlterStatements unless method_defined?(:change_column_for_alter)
 
       ADAPTER_NAME = 'Percona'.freeze