Mongoose: execPopulate on virtuals is not working

[SBRK]

I am trying to use virtual populates as explained in this post: http://thecodebarbarian.com/mongoose-virtual-populate

When using populate with find, there is no problem. However, populating afterwards on a document does not seem to be working

ex:

SomeModelSchema.virtual('bar', {
  ref: 'OtherModel',
  localField: 'otherModelId',
  foreignField: 'id',
  justOne: true,
});

SomeOtherModelSchema = new Schema({
  foo: [SomeModelSchema]
})

// This works, result.foo[0].bar is an OtherModel document
let result = await SomeOtherModel.findOne({}).populate('foo.bar');

// This does not work, result.foo[0].bar is null
result = await SomeOtherModel.findOne({});
result = await result.populate('foo.bar').execPopulate();

[vkarpov15]

Thanks for reporting, will fix for next minor release :+1:

[SBRK]

It seems this brought a regression. I have virtual populates not being populated correctly now. I'll investigate to see what's happening exactly

[SBRK]

Yep, populate with execPopulate was broken on nested documents, now it is broken on the first level. 4.10.0 is good, 4.10.1 isn't

SomeModelSchema.virtual('bar', {
  ref: 'OtherModel',
  localField: 'otherModelId',
  foreignField: 'id',
});

// This works, result.bar[0] is an OtherModel document
let result = await SomeModel.findOne({}).populate('bar');

// This does not work, result.bar is null
result = await SomeModel.findOne({});
result = await result.populate('bar').execPopulate();

Got any idea @vkarpov15 ?

[vkarpov15]

@SBRK opened up a separate issue #5311 :point_up: to track