Zipcode

gistfile1.js

// Zipcode.json
{
  "name": "Zipcode",
  "base": "PersistedModel",
  "properties": {
    "zipcode": {
      "type": "string",
      "required": true,
      "length": 5
    }
  },
  "validations": [],
  "relations": {},
  "acls": [],
  "methods": []
}

// Zipcode.js
module.exports = function(Zipcode)
{
    Zipcode.beforeCreate = function(next, data)
    {
        Zipcode.findOne({where: {zipcode: data.zipcode}}, function(err, result)
        {
            if (err) return next(err);
            if (result) return next(null, result);
            return next();
        });
    };
};