Ruby on Rails

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

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