typegoose graphql update subdocument

[Sed9yDataBank]

I am trying to write a mutation for updating a subdocument.
The subdocument has multiple fields.
This is how it's done with mongo:

db.getCollection('positions').findOneAndUpdate({_id: ObjectId("60f49c9961fd9384783ef912"), 
  "progressions._id": ObjectId("60f4a310b4a2919386b77391")}, 
 {"$set":{"progressions.$.progressionName":"NEWWWWWWWWWWWW"}})

and this is what I wrote in my resolver:

@Mutation(() => Boolean, { nullable: false })
  async updateProgression(
    @Arg("positionId", type => ObjectIdScalar) positionId: ObjectId,
    @Arg("progressionId", type => ObjectIdScalar) progressionId: ObjectId,
    @Arg("progression", () => ProgressionInput, { nullable: true }) progressionInput: ProgressionInput) {
      const position = await PositionModel.findOneAndUpdate({
                   _id: positionId as any,
                   "progressions._id": progressionId as any
        }, progressionUpdateInput, {useFindAndModify: false});
  }

@InputType()
export class ProgressionUpdateInput implements Partial<Progression> {

  @Field({ nullable: true })
  progressionName?: string;

  @Field(() => String, { nullable: true})
  progressionDate?: Date;

  @Field({ nullable: true })
  progressionRanking?: number;

  @Field({ nullable: true })
  passingStatus?: string;

  @Field({ nullable: true })
  notes?: string;
}

@ObjectType()
export class Position {
    @Field(() => ObjectIdScalar)
    @prop({ auto: true })
    readonly _id: mongoose.Schema.Types.ObjectId;

    @Field()
    @prop({ required: true, unique: true })
    public positionName!: string;

    @Field(() => [Progression])
    @prop({ type: () => Progression, default: [] })
    progressions: Progression[];
}

My problem is how can I partial update my subdocument 'Progression'.
For now graphql playground returns true, but there are no updates happening.

[carlocorradini]

Two things:

1. Post ProgressionInput class.
2. How do I pass progressionInput in the $set argument? Ca you explain better what you are trying to achieve. Unfortunately, I don't undestand your doubt 😪

PS: I'm not familiar with typegoose.

[carlocorradini]

I don't understand sorry :(

[carlocorradini]

Can you make an example or describe more in details what you want to achieve

[Sed9yDataBank]

It's fine thank you anyways.

[carlocorradini]

Seriously, if I better understand I can help you 😁

[Sed9yDataBank]

Well, I understand that my problem is related to mongodb and nosql. If this was done with postgres for example, it would have been easy.
Hopefully someone with typegoose experience can answer this.
Again thank you :)