Unable to run an update using getMongoRepository

Issue type:

[x] question [ ] bug report [ ] feature request [ ] documentation issue

Database system/driver:

[ ] cordova [x] mongodb [ ] mssql [ ] mysql / mariadb [ ] oracle [ ] postgres [ ] sqlite [ ] sqljs [ ] react-native [ ] expo

TypeORM version:

[ ] latest [ ] @next [x] 0.2.10 (or put your version here)

Steps to reproduce or a small repository showing the problem:

The current model looks like this.

import { Answer } from "./Answer";

@Entity({ database: DATABASE_MONGO_NAME })

export class StudentRecord {
  @ObjectIdColumn()
  _id: ObjectID;

 /* many more columns */

  @Column()
  answers: Answer[];

}

The Answer collection model looks like this

@Entity({ database: DATABASE_MONGO_NAME })

export class Answer {
  @ObjectIdColumn()
  _id: ObjectID;

 /* many more columns */

  @ObjectIdColumn()
  mongo_id_question: ObjectID;

  @Column()
  selected: string[];
}

So essentially the data stored in a document looks like this

{
    "_id": {
        "$oid": "5c1e60352f73e9000494e33f"
    },
    "answers": [
        {
            "_id": {
                "$oid": "5c0e507f0da2560004c9003e"
            },
            "mongo_id_question": {
                "$oid": "5c0e507f0da2560004c9003e"
            },
            "selected": [
                "5c0e507f0da2560004c9003b"
            ]
        }
    ]
}

The query I am trying to run, sets the updatedAt column for an object with a given mongo_id_question in the answers list based on a given record_id

StudentRecordsRepository.update(
      {
        _id: new ObjectID(record_id),
        "answers.mongo_id_question": new ObjectID("5c0e507f0da2560004c9003e"),
      },
      { $set: { "answers.$.updatedAt": new Date() } },
    );

I get the following error in typescript

error TS2345: Argument of type '{ _id: ObjectID; "answers.mongo_id_question": ObjectID; }' is not assignable to parameter of type 'string | number | Date | ObjectID | FindConditions<StudentRecord> | string[] | number[] | Date[] | ObjectID[]'.
  Object literal may only specify known properties, and '"answers.mongo_id_question"' does not exist in type 'string | number | Date | ObjectID | FindConditions<StudentRecord> | string[] | number[] | Date[] | ObjectID[]'

[judemanutd]

IMHO I never got why people need an ORM for mongoDb. It is already object oriented. What advantages bring an ORM ? Using an ORM for mongoDB means that models are relational models and that’s a pity because you loose all the benefits of an object oriented database.

In PHP world, Doctrine try to do it with DoctrineODM but it was a failure and poorly used

Be that as it may, this seems like a question for stack overflow and not the answer to the current issue that is being faced.

[mohamed-badaoui]

IMHO I never got why people need an ORM for mongoDb. It is already object oriented. What advantages bring an ORM ? Using an ORM for mongoDB means that models are stored as relational models and that’s a pity because you loose all the benefits of an object oriented database.

In PHP world, Doctrine try to do it with DoctrineODM but it was a failure and poorly used