Custom validation for phone attribute for sails model Donor

Donor.js

/**
 * Donor.js
 *
 * @description :: TODO: You might write a short summary of how this model works and what it represents here.
 * @docs        :: http://sailsjs.org/documentation/concepts/models-and-orm/models
 */
const shortid = require('shortid');

module.exports = {

  attributes: {
    first_name: {
      type: 'string',
      required: true
    },
    last_name: {
      type: 'string',
      required: true
    },
    contact_no: {//validate
      type: 'string',
      required: true,
      phoneNo: true
    },
    email: {//validate
      type: 'email',
      required: true
    },
    address: {
      type: 'string',
      required: true
    },
    bloodgroup: {
      type: 'string',
      required: true
    },
    ip: {//http://ipinfo.io
      type: 'string'
    },
    location: {
      type: 'string'
    },
    geolocation: {
      type: 'json',
      defaultsTo: {
        x: '',
        y: ''
      }
    },
    url: {
      type: 'string',
    },
    active: {
      type: "boolean",
      defaultsTo: true
    }
  },

  // Lifecycle Callbacks
  beforeCreate: function (values, cb) {
    values.url = shortid.generate();
    cb();
  },

  types: {
    phoneNo: function (value) {
      var validNo1 = /\+[0-9]{2}\s[0-9]{3}\s[0-9]{4}\s[0-9]{3}$/; //+xx xxx xxxx xxx
      var validNo2 = /00[0-9]{2}\s[0-9]{3}\s[0-9]{4}\s[0-9]{3}$/; //00xx xxx xxxx xxx

      return validNo1.test(value) || validNo2.test(value);
    }
  }
};