bug with student update fixed

sails/conf/pictodb_init_keepsymbolstix.sql

+DROP DATABASE symbolstixdb;
 GRANT USAGE ON *.* TO 'pictodbuser'@'localhost';
 DROP USER  'pictodbuser'@'localhost';
 CREATE USER 'pictodbuser'@'localhost' identified by 'p1KT015';

sails/src/api/controllers/StudentController.js

 /**
- * StudentController
+ /* StudentController
  *
  * @description :: Server-side logic for managing students
  * @help        :: See http://links.sailsjs.org/docs/controllers
@@ -171,6 +171,8 @@ module.exports = {
 		Student.findOne(req.params.id_stu).exec(function(err, stu){
 			if (err || !stu)
 				return res.json(500, {error: "No student found"});
+		        // copy attributes
+		        for (k in req.body) stu[k] = req.body[k];
 			stu.save(function(err, saved) {
 				if (err)
 					return res.json(500, {error: "Error when saving student"});