Autopopulate arrays doesnt seem to work

[eloytoro]

So I wrote this test and its failing.

var InnerSchema = new mongoose.Schema({
  field: String
});
var Inner = mongoose.model('Inner', InnerSchema);

var MiddleSchema = new mongoose.Schema({
  inners: {
      type: [mongoose.Schema.Types.ObjectId],
      ref: 'Inner',
      autopopulate: { select: 'field' }
  }
});
MiddleSchema.plugin(plugin);
var Middle = mongoose.model('Middle', MiddleSchema);

var OuterSchema = new mongoose.Schema({
  middle: {
      type: mongoose.Schema.Types.ObjectId,
      ref: 'Middle',
      autopopulate: { select: 'inners' }
  }
});
OuterSchema.plugin(plugin);
var Outer = mongoose.model('Outer', OuterSchema);

new Inner({
  field: 'hello'
}).save(function (err, inner1) {
  new Inner({
      field: 'goodbye'
  }).save(function (err, inner2) {
      new Middle({
          inners: [inner1._id, inner2._id]
      }).save(function (err, middle) {
          new Outer({
              middle: middle._id
          }).save(function (err, outer) {
              Outer.findOne({}, function (err, outer) {
                  assert.equal(outer.middle.inners.length, 2);
                  outer.remove(function () {
                      middle.remove(done);
                  });
              })
          })
      })
  })
})

[vkarpov15]

Can you please open this issue on https://github.com/mongodb-js/mongoose-autopopulate? That sounds more like an issue with the plugin.

[eloytoro]

What do you mean, this is the plugin repo

EDIT: I fixed it by specifying which model should populate the values within the populate options.
I could make a PR but it was kinda of an overhaul (it still passes the tests tho)

[vkarpov15]

Sorry about that, this went into my mongoose email folder so I wasn't paying attention. Could you put in a PR?

[eloytoro]

The PR is missing some unit tests, however this issue seems to be caused by mongoose, not the plugin.
Shouldnt Document#populate handle array fields correctly if the model isnt specified?

[vkarpov15]

Since coverage is still 100% I'd say its fine. Either way, it was an issue of the plugin not providing the correct option to mongoose, which you could throw in an integration test for.