ActiveRecord::Base.transaction do
  new_ids =
  ActiveRecord::Base.connection.execute(
    params[:sql]).column_values(0)
  #get ids - 0th column in result-table
  same_ids = (new_ids.sort == (params[:ids].to_a.collect{|id|
  id.to_i}).sort)

    if !same_ids
      result = ActiveRecord::Base.connection.execute(params[:sql])
      model = params[:model].camelize.classify.constantize
      fields = result.fields

      recordset = model.where(id: new_ids).order_as_specified(id: new_ids)
      ...
    end
    raise ActiveRecord::Rollback #sql must be run inside transaction for security
  end
  if !same_ids
    ... (Handle the change)