var body = function(param, req, models, validationObj) {
  var value = _.has(req.params, param.name) ? req.params[param.name] : undefined;
  var ret = helper.paramType(param, value, models, param.allowMultiple);
  if (!_.some(ret, function(val) { return val.hasOwnProperty('error'); })) {
    if (validationObj.replaceValues) {