migrations

# File activerecord/lib/active_record/migration.rb, line 490
    def migrations
      @migrations ||= begin
        files = Dir["#{@migrations_path}/[0-9]*_*.rb"]
        
        migrations = files.inject([]) do |klasses, file|
          version, name = file.scan(/([0-9]+)_([_a-z0-9]*).rb/).first
          
          raise IllegalMigrationNameError.new(file) unless version
          version = version.to_i
          
          if klasses.detect { |m| m.version == version }
            raise DuplicateMigrationVersionError.new(version) 
          end

          if klasses.detect { |m| m.name == name.camelize }
            raise DuplicateMigrationNameError.new(name.camelize) 
          end
          
          klasses << returning(MigrationProxy.new) do |migration|
            migration.name     = name.camelize
            migration.version  = version
            migration.filename = file
          end
        end
        
        migrations = migrations.sort_by(&:version)
        down? ? migrations.reverse : migrations
      end
    end