class Playbook::PbTable::Table

def sticky_left_column_class
  if sticky_left_column.empty?
    nil
  else
    sticky_col_classname = "sticky-left-column sticky-left-columns-ids"
    sticky_left_column.each do |id|
      sticky_col_classname += "-#{id}"
    end
    sticky_col_classname
  end
end