Can't find records in Waterline by date/time

问题

how compare a datetime in sails.js Model? here it is what i did but without luck.

var _date = moment().format('YYYY-MM-DDTHH:mm:ss.SSS') + 'Z';
Game.find({
    where:{
        active: true,
        start: {
            '>=' : _date
        }
    },
    limit: 1,
    sort: 'start asc'
}, function(err, game) {
    console.log('ERROR: ' + err);
    console.log('Game OBJ' + game.toString());
});

回答1:

The datetime type is transformed into an actual Javascript date in Waterline (the Sails ORM). So it needs to be compared against a date object, not a string. You can keep your code exactly as it is, but change the first line to:

var _date = new Date(moment().format('YYYY-MM-DDTHH:mm:ss.SSS') + 'Z');

Then your query should find all Games that start in the future.

Of course since your code is just returning current date, you don't really need moment at all:

var _date = new Date();

will work just as well.

回答2:

var _date = moment().format('YYYY-MM-DDTHH:mm:ss.SSS') + 'Z';

you need to convert above string variable to date variable using below line

var tempDate = new Date(_date);

Now use $gte instead of '>='

Game.find({
    where:{
        active: true,
        start: {
            $gte : tempDate 
        }
    },
    limit: 1,
    sort: 'start asc'
}, function(err, game) {
    console.log('ERROR: ' + err);
    console.log('Game OBJ' + game.toString());
});

You can also use $gt, $lt, $lte.

来源：https://stackoverflow.com/questions/23527136/cant-find-records-in-waterline-by-date-time