/* client side jquery */
    $("#filtersearch").keyup(function(){
        var term = $("#filtersearch").val();
        var url = '/cameras';
        var csrf = $("#csrf").val();
        $.post( url, { _csrf: csrf, searchterm: term } );
    });

/* post route */
router.post('/cameras', function(req, res) {
    console.log(req.body);
    req.session['searchterm'] = req.body.searchterm;
    res.redirect('/cameras');
});

/* get route  */
router.get('/cameras', function(req,res) {

    console.log(req.session['searchterm']);
    var username;
    var searchterm = req.session['searchterm'];
    var key;
    var value;

    if(searchterm){

        value = searchterm;
    }else{

        value = 'camera';
    }

    res.locals.login ? username = req.user.username : username = null;

     Listing.find({description:{'$regex' : value, '$options' : 'i'}}, function(err, listings){
         console.log('listings = ' + listings + '\nerror ' + err)
        res.render('shop/cameras',{ csrfToken: req.csrfToken(), username: username, listings: listings});
    });
});