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mio-validators

v1.1.3

Published

Validators for Mio.

Downloads

1

Readme

mio-validators Build Status Coverage Status Bower version NPM version

Validators for Mio models.

Installation

Using npm:

npm install --save mio-validators

Using bower:

bower install --save mio/validators

Using browser script tag and global (UMD wrapper):

// Available via window.mio.validators
<script src="dist/mio-validators.js"></script>

Usage

Only attributes that have values other than null or undefined are validated, and those marked with required: true will return a validation error if their value is null or undefined.

var mio = require('mio');
var validators = require('mio-validators');

var User = mio.Resource.extend();

User
  .use(validators())
  .attr('id', {
    primary: true,
    constraints: [
      validators.Assert.TypeOf('string'),
      validators.Assert.Length({ min: 1, max: 32 })
    ]
  })
  .attr('name', {
    required: true,
    contraints: [
      validators.Assert.TypeOf('string'),
      validators.Assert.Length({ min: 2, max: 32 })
    ]
  })
  .attr('email', {
    required: true,
    constraints: [
      validators.Assert.Email()
    ]
  });

mio-validators uses asserted for assertions. Refer to the asserted documentation for information on available assertions or creating custom assertions.

"validate" hook

mio-validators adds a "validate" asynchronous event and calls its handlers in series before put, patch, and post hooks.

Resource#validate(callback)

Params

  • callback Function(ValidationError)

ValidationError

Passed to callback if validation(s) failed.

Properties

  • message String defaults to "Validation(s) failed."
  • violations Object.<String, Array> map of attribute names to array of violation messages
  • stack String stack trace

MIT Licensed