class CmAdmin::Models::Column

def initialize(field_name, attributes = {})
  @field_name = field_name
  set_default_values
  attributes.each do |key, value|
    self.send("#{key.to_s}=", value)
  end
  #formatting header (either field_name or value present in header attribute)
  self.send("header=", format_header)
end