Validate object against Mongoose schema without saving as a new document

Question

I\'m trying to validate some data that will be inserted into a new document, but not before a lot of other things need to happen. So I was going to add a function to the static

Answer 1

There is one way to do that through Custom validators. When the validation failed, failed to save document into DB.

var peopleSchema = new mongoose.Schema({
        name: String,
        age: Number
    });
var People = mongoose.model('People', peopleSchema);

peopleSchema.path('name').validate(function(n) {
    return !!n && n.length >= 3 && n.length < 25;
}, 'Invalid Name');

function savePeople() {
    var p = new People({
        name: 'you',
        age: 3
    });

    p.save(function(err){
        if (err) {
             console.log(err);           
         }
        else
            console.log('save people successfully.');
    });
}

Or another way to do that through validate() with same schema as you defined.

var p = new People({
    name: 'you',
    age: 3
});

p.validate(function(err) {
    if (err)
        console.log(err);
    else
        console.log('pass validate');
});