kyanagi

ä
<%= @str %>

kyanagi

instance_eval <<_E
  puts "\xe3\x81\x82".encoding # => ASCII-8BIT
_E

instance_eval <<_E
# coding: utf-8
  puts "\xe3\x81\x82".encoding # => UTF-8
_E

kyanagi

# create table users (id integer auto_increment, primary key (id));
# create table items (id integer auto_increment, user_id integer, primary key (id));
# insert into users (id) values (1);
# insert into items (user_id) values (1);

% cat a.rb
require 'rubygems'
require 'active_support/dependencies'
require 'active_record'

kyanagi

module ActiveRecord::ConnectionAdapters::SchemaStatements
  alias orig_add_index add_index
  def add_index(table_name, column_name, options = {})
    orig_add_index(table_name, column_name, options || {})
  end
end