class BinData::Struct

def sanitize_hide(params)

def sanitize_hide(params)
  if params.needs_sanitizing?(:hide) and params.has_parameter?(:fields)
    field_names  = sanitized_field_names(params[:fields])
    hfield_names = hidden_field_names(params[:hide])
    params[:hide] = (hfield_names & field_names)
  end
end