How to cast property in nested objects to ObjectId with loopback and mongodb?

[Farid Neshat]

I originally have posted this question on [stackoverflow][1] but I got no response. Hoping I can get some help over here:

Let's say I have the following model definition:

    {

      "name": "Report",

      "idInjection": true,

      "trackChanges": true,

      "mongodb": {

        "collection": "report"

      },

      "properties": {

        "resource" : {"type": "String"},

        "date" : {"type": "Date"},

        "people" : [ {

            // Here's where I like to have an id property.

            "role" : {"type": "String"},

            "hours" : {"type": "Number"}

        } ],

        "name" : {"type": "String"}

      },

      "validations": [],

      "relations": {},

      "acls": [],

      "methods": []

    }

Now I want to have id property in each object in people array(to be accessed with like report.people[0].id) and it should be **casted** to ObjectId on inserts and updates. But well, loopback doesn't have an `ObjectId` type and the only way seems to be using relations but then how should the foreign key be?

Is there any way to have the id property casted to ObjectId on inserts and updates?

  [1]: http://stackoverflow.com/q/27874880/774086

[Raymond Feng]

Have you looked at http://docs.strongloop.com/display/LB/Embedded+models+and+relations?

Thanks,

---

Raymond Feng

Co-Founder and Architect @ StrongLoop, Inc.

StrongLoop makes it easy to develop APIs in Node, plus get DevOps capabilities like monitoring, debugging and clustering.

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[Bryan Clark]

This issue also might have some answers for you as the docs are a bit out of date in this area.
https://github.com/strongloop/loopback-datasource-juggler/issues/336

I think you want something like this instead:

"relations": {

  "people": {
    "type": "embedsMany",
    "model": "People",
    "options": {
       "persistent": true
    }
  }
}

 Don't forget to define your People model somewhere.

 ~ Bryan