Mongoose runs array-level validators on the array and its elements

[ashaffer]

var mongoose = require('mongoose');
var Schema = mongoose.Schema;

mongoose.connect('localhost');

var A = new Schema({str: String});
var B = new Schema({a: [A]});
B.path('a').validate(function(val, next) {
  console.log('val', val);
  next();
});

var b = mongoose.model('b', B);

var p = new b;
p.a.push({str: 'asdf'});
p.save();

If you run this code, you'll see that the validator is called twice. Once with the entire array as val, and once for each element in the array.

I'm not sure which one is the intended behavior (it used to just run on the whole array), but it certainly shouldn't be both.

[vkarpov15]

Hmm is this in master?

[ashaffer]

@vkarpov15 Yes this is happening in the latest version of master.