Mongoose Error Helper

Error helper for Mongoose schemas utilising utils to transform complex messages into human language.

Mongoose Validator simply returns Mongoose style validation objects inside an array of messages.

##Installation##

npm install mongoose-error-helper

##Usage##

var errorHelper = require('mongoose-error-helper').errorHelper;


function (req, res, next) {
    //generate `user` here
    user.save(function (err) {
        //If we have an error, call the helper, return, and pass it `next`
        //to pass the "user-friendly" errors to
        if (err) return errorHelper(err, next);
    }
}

##With callback##

var errorHelper = require('mongoose-error-helper').errorHelper;

if(err){
	errorHelper(err, function(errors){
		console.log(errors);
	});
}

##Error Messages Before##

{ message: 'Validation failed',
  name: 'ValidationError',
  errors:
   { username:
      { message: 'Validator "required" failed for path username',
        name: 'ValidatorError',
        path: 'username',
        type: 'required' },
     state:
      { message: 'Validator "enum" failed for path state',
        name: 'ValidatorError',
        path: 'state',
        type: 'enum' },
     email:
      { message: 'Validator "custom validator here" failed for path email',
        name: 'ValidatorError',
        path: 'email',
        type: 'custom validator here' },
     age:
      { message: 'Validator "min" failed for path age',
        name: 'ValidatorError',
        path: 'age',
        type: 'min' } } }

Error Messages After

[ 'username is required.',
  'state not an allowed value.',
  'custom validator here',
  'age below minimum.' ]

##Contributors##

Special thanks to "clarkf" on stackoverflow for for this solution. We made it public for everybody.