Loopback model definition is not adding foreign key relation in database table

I am using loopback for API design and data modeling. I am using MySQL as my database. Although my API rest URL successfully returns results e.g. /states/{id}/cities. I have following model but it seems no foreign key relation is added. Following are my model definition.

"state": {
  "options": {
    "relations": {
      "cities": {
        "type": "hasMany",
        "model": "city",
        "foreignKey": "stateId"
      }
    }
  },
  "properties": {
    "name": {
      "type": "string"
    }
  },
  "public": true,
  "dataSource": "db",
  "plural": "states"
},
"city": {
  "options": {
    "relations": {
      "state": {
        "type": "belongsTo",
        "model": "state",
        "foreignKey": "stateId"
      }
    }
  },
  "properties": {
    "name": {
      "type": "string"
    }
  },
  "public": true,
  "dataSource": "db",
  "plural": "cities"
}

and below is screenshot of city table. enter image description here

And following is State table screenshot. enter image description here

I may be doing it wrong here. Looking forward for any pointers.

Solution

It seems Loopback handles relations in models using "WHERE" query and not based on relations. Following are details.

https://github.com/strongloop/loopback-connector-mysql/issues/16