hasAndBelongsToMany - seeding data question - creating objects

[Steve Gentile]

I'm new to loopback and I'm struggling on how to create objects with relations - most the documentation shows how to wire up the relations but rarely do I see an actual example outside of calling endpoints.

I looked here and see these examples: https://github.com/strongloop/loopback-datasource-juggler/blob/master/examples/relations.js

All of them show this 'add' function off the model, ie :

physician.tenants.add(tenant);

I'm getting this error:

"server/boot/script.js:28

            physician.tenants.add(tenant);

                            ^

TypeError: Cannot read property 'add' of undefined"

My setup is:

'A physician is a user'

'A physician belongs to one or more tenants'

('A tenant has many physicians)

Here is my object structure

{

  "name": "Physician",

  "base": "User",

  "idInjection": true,

  "properties": {

    "name": {

      "type": "string",

      "required": true

    }

  },

  "validations": [],

  "relations": {

    "tenants": {

      "type": "hasAndBelongsToMany",

      "model": "Tenant",

      "foreignKey": ""

    }

  },

  "acls": [],

  "methods": []

}

My seed code:

var pgPhoenix = app.dataSources.pg;

  pgPhoenix.autoupdate();

  pgPhoenix.automigrate('Tenant', function(err) {

    if (err) return cb(err);

    var Tenant = app.models.Tenant;

    Tenant.create([

      {name: 'Test Tenant'}

    ], function(err, tenant){

        console.log(tenant);

        pgPhoenix.automigrate('Physician', function(err){

          var Physician = app.models.Physician;

          console.log(tenant);

          Physician.create([

            {

              username:'fbar',

              name: 'Foo Bar',

              email:'f...@test.com',

              password: '123123'

            }

          ],function(err, physician){

            physician.tenant.add(tenant);

            //tenant.physicians.add(physician);

            //console.log(physician);

            console.log(physician);

          });

        });

    });

  });

----

Here is the tenant information, not 100% sure if this is setup correctly:

{

  "name": "Tenant",

  "base": "PersistedModel",

  "idInjection": true,

  "properties": {

    "name": {

      "type": "string",

      "required": true

    }

  },

  "validations": [],

  "relations": {

    "physicians": {

      "type": "hasMany",

      "model": "Physician",

      "foreignKey": ""

    }

  },

  "acls": [],

  "methods": []

}

Thanks in advance!

Steve