.railsrc

if (rails_env = ENV['RAILS_ENV']) || (rails_env = Rails.env)
  rails_root = File.basename(Dir.pwd)

  rails_env_string = case rails_env
  when 'development'
    '[DEV]'
  when 'production'
    '[PROD]'
  else
    "[#{rails_env.upcase}]"
  end

  # script/console prompt
  IRB.conf[:PROMPT] ||= {}
  IRB.conf[:PROMPT][:RAILS] = {
    :PROMPT_I => "#{rails_root} #{rails_env_string}>> ",
    :PROMPT_S => "#{rails_root} #{rails_env_string}* ",
    :PROMPT_C => "#{rails_root} #{rails_env_string}? ",
    :RETURN => "=> %s\n"
  }
  IRB.conf[:PROMPT_MODE] = :RAILS

  # Called after the irb session is initialized and Rails has been loaded
  IRB.conf[:IRB_RC] = Proc.new do
    next unless defined?(ActiveRecord::Base)

    # [] acts as find()
    ActiveRecord::Base.instance_eval { alias :[] :find }

    def r!
      reload!
    end

    # sql for arbitrary SQL commands through the AR
    def sql(query)
      ActiveRecord::Base.connection.execute(query)
    end
  end
end

# set logging to screen
if ENV.include?('RAILS_ENV')
  # Rails 2.x
  if !Object.const_defined?('RAILS_DEFAULT_LOGGER')
    require 'logger'
    Object.const_set('RAILS_DEFAULT_LOGGER', Logger.new(STDOUT))
  end
else
  # Rails 3
  if Rails.logger
    Rails.logger = Logger.new(STDOUT)
    ActiveRecord::Base.logger = Rails.logger
  end
end

# .details method for pretty printing ActiveRecord's objects attributes
class Object
  def details
    if self.respond_to?(:attributes) and self.attributes.any?
      max = self.attributes.keys.sort_by { |k| k.size }.pop.size + 5
      puts
      self.attributes.keys.sort.each do |k|
        puts sprintf("%-#{max}.#{max}s%s", k, self.try(k))
      end
      puts
    end
  end
  alias :detailed :details
end

# readable BigDecimal#inspect output (https://gist.github.com/henrik/6280438)
# for Ruby 1.9+ and Rails 3+
if RUBY_VERSION >= '1.9.0' && defined?(Rails)
   class BigDecimal
     def inspect
       format("#<BigDecimal:%x %s>", object_id, to_s('F'))
     end
   end
end

# returns a collection of the methods that Rails added to the given class
# http://lucapette.com/irb/rails-core-ext-and-irb/
class Class
  def core_ext
    self.instance_methods.map {|m| [m, self.instance_method(m).source_location] }.select {|m| m[1] && m[1][0] =~/activesupport/}.map {|m| m[0]}.sort
  end
end