Appcelerator Arrow Field Validation in the model and Multiple Field Validation in a pre Block

employee.js

var Arrow = require("arrow");
var jobTitle = new Array("SA", "SE", "VP", "SAM", "SDR");

var Model = Arrow.createModel("employee",{
	"fields": {
		"fname": {
			"type": "String"
		},
		"lname": {
			"type": "String",
		},
		"tel": {
			"type": "String",
			// "validator": function(val) {
      //   if(!val.match(/(\+*\d{1,})*([ |\(])*(\d{3})[^\d]*(\d{3})[^\d]*(\d{4})/)) {
			// 		return 'Phone Number not valid'
			// 	}
			// }
		},
		"title": {
			"type": "String",
			// "validator": function(val) {
      //   if (jobTitle.indexOf(val) == -1) {
      //       return 'Job Title not valid'
      //   }
			// }
		}
	},
	"before": "validateemployeeform",
	"connector": "appc.arrowdb",
	"actions": [
		"create",
		"read",
		"update",
		"delete",
		"deleteAll"
	],
	"singular": "employee",
	"plural": "employees"
});


module.exports = Model;

validateemployeeform.js

var Arrow = require('arrow');
var jobTitle = new Array("SA", "SE", "VP", "SAM", "SDR");


var PreBlock = Arrow.Block.extend({
	name: 'validateemployeeform',
	description: 'validate form',

	action: function (req, resp, next) {

		var errorArray = [];
		if((req.method==="POST" || req.method==="PUT")) {
			// console.log("req.params = "+JSON.stringify(req.params));
			  if (jobTitle.indexOf(req.params.title) == -1) {
					errorArray.push('Job Title not valid');
			  }

			  if(!req.params.tel.match(/(\+*\d{1,})*([ |\(])*(\d{3})[^\d]*(\d{3})[^\d]*(\d{4})/)) {
					errorArray.push('Phone Number not valid');
				}

				if(errorArray.length>0) {
					resp.response.status(500); //workaround - https://jira.appcelerator.org/browse/API-852
					resp.send({"errors": errorArray});
					next(false);
				} else {
					next();
				}
		} else {
			next();
		}
	}
});

module.exports = PreBlock;