validate and parse integer ids

id.js

/**
 * validates and parses ids. optionally accepts multi-ids (comma separated integer ids)
 */

var validator = require('validator');

var parse = function(ids, multiple) {

  if (!ids) {
    return false;
  }

  if (typeof ids === 'string') {
    ids = ids.split(',');
  }

  if (!multiple) {
    return validator.isInt(ids) ? parseInt(ids[0]) : false;
  }

  for (var i in ids) {
    ids[i] = parse(ids[i]);
    if (!ids[i]) {
      return false;
    }
  }

  return ids;

};

module.exports = parse;