util.js

var util = {};

util.isLoggedin = function(req, res, next){
    if(req.isAuthenticated()){
     next();
    } else {
     req.flash("errors", {login:"Please login first"});
     res.redirect("/login");
    }
   }
   
   util.noPermission = function(req, res){
    req.flash("errors", {login:"You don't have permission"});
    req.logout();
    res.redirect("/login");
   }

util.parseError = function(errors){
 var parsed = {};
 if(errors.name == 'ValidationError'){
  for(var name in errors.errors){
   var validationError = errors.errors[name];
   parsed[name] = { message:validationError.message };
  }
 } else if(errors.code == "11000" && errors.errmsg.indexOf("username") > 0) {
  parsed.username = { message:"This username already exists!" };
 } else {
  parsed.unhandled = JSON.stringify(errors);
 }
 return parsed;
}

util.getDate = function(dateObj){
 if(dateObj instanceof Date)
  return dateObj.getFullYear() + "-" + get2digits(dateObj.getMonth()+1)+ "-" + get2digits(dateObj.getDate());
}

util.getTime = function(dateObj){
 if(dateObj instanceof Date)
  return get2digits(dateObj.getHours()) + ":" + get2digits(dateObj.getMinutes())+ ":" + get2digits(dateObj.getSeconds());
}

module.exports = util;

// private functions
function get2digits (num){
 return ("0" + num).slice(-2);
}