paginate_by_sql and Rails 3.0.0beta4

I am trying to port an existing rails app running rails 2.3.8 to
3.0.0beta4

I use this paginate_by_sql hack

module ActiveRecord
    class Base
        def self.find_by_sql_with_limit(sql, offset, limit)
            sql = sanitize_sql(sql)
            add_limit!(sql, {:limit => limit, :offset => offset})
            find_by_sql(sql)
        end

        def self.count_by_sql_wrapping_select_query(sql)
            sql = sanitize_sql(sql)
            count_by_sql("select count(*) from (#{sql}) as x")
        end
   end
end

The add_limit! method has been removed from ActiveRecord::Base class.
Are there any work arounds for this? Any alternatives to doing
pagination by SQL in Rails 3.0.0?

Thanks

fwiw, this works.

module ActiveRecord
    class Base
        def self.find_by_sql_with_limit(sql, offset, limit)
            sql = sanitize_sql(sql)
            find_by_sql(sql + " LIMIT #{offset},#{limit}")
        end
        def self.count_by_sql_wrapping_select_query(sql)
            sql = sanitize_sql(sql)
            count_by_sql("select count(*) from (#{sql}) as x")
        end
   end
end