objvalidator

Simple nodejs module for validate object elements by custom rule with custom error messages.

Validator Declarations

Validators for various object types are declares in a config file (File may contain validator definitions for one or more objects).

// Properties in an ordered sequence
var personvalidator = [
  {
    fieldId : 'firstname',
    fieldName : 'First Name',
    rules:[
      { method : 'notEmpty', message: 'First Name cannot be empty'},
      { method : 'maxLength', param : 2}
    ]
  },
  {
    fieldId : 'lastname',
    fieldName : 'Last Name',
    rules:[
      { method : 'notEmpty', message: 'Last Name cannot be empty'},
      { method : 'maxLength', param : 2}
    ]
  },
   
];
module.exports.validationPool = {
   person: personvalidator
};

Usage

Load this config in your application (Node.js example)

// Load Config
var validatorConfig = require("./validationmodel.conf.js");
// Load Object Validator Module
var ObjValidation  = require('objvalidator');

Somewhere in the app - run validation...

var type = 'person';
// Lookup validator for the object
var personvalidator = validatorConfig[type];
// Instantiate validator
var validator = new ObjValidation.ObjValidation();
// Object to Validate
var a_person = {'firstname': 'Bob', 'firstname': '',};
// Run Validation
var validation = validator.validateProcess(personvalidator, a_person);