[Keystone.js] Use admin forms outside admin #671

example.jade

// Jade File
.
.
.
if exampleSubmitted
	h1 Yeah, it works.
else
	form(method='post')
		input(type='hidden', name='action', value='example')
		.form-group(class=validationErrors.name ? 'has-error' : null)
			p Name
			input(type='text', name='name', value=formData.name, placeholder="Insert your name")
		.form-group(class=validationErrors.email ? 'has-error' : null)
			p Age
			input(type='number', name='age', value=formData.age, placeholder="Insert your age please")
		.form-actions
			button(type='submit') Send

Example.js

// Model
var keystone = require('keystone'),
    Types = keystone.Field.Types;
 
// Set new model
var Example = new keystone.List('Example', {
    nocreate: true
});

// Set the fields of your model 
Example.add({
    name: { type: String, required: true, label: 'Age' },
    age: { type: Number, label: 'Age' },
});
 
Example.defaultColumns = 'name, age';

// Regist your new model
Example.register();

example.js

// Controller for view example.jade

var keystone = require('keystone'),
	Example = keystone.list('Example');

exports = module.exports = function(req, res) {
	
	var view = new keystone.View(req, res),
		locals = res.locals;
	
	// Set locals
	locals.formData = req.body || {};
	locals.validationErrors = {};
	locals.exampleSubmitted = false;
	
	// On POST requests, add the Example item to the database
	view.on('post', { action: 'example' }, function(next) {
		
		var newExample = new Example.model(),
			updater = newExample.getUpdateHandler(req);
		
		updater.process(req.body, {
			flashErrors: true,
			fields: 'name, age',
			errorMessage: 'Something went wrong'
		}, function(err) {
			if (err) {
				locals.validationErrors = err.errors;
			} else {
				locals.exampleSubmitted = true;
			}
			next();
		});
		
	});
	
	view.render('example');
	
};

index.js

// Index file on root of routes
exports = module.exports = function(app) {
	
	// Views
	.
  .
  .
	app.all('/example', routes.views.example);
	.
  .
  .
};