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postgresqlloopbackjsbelongs-to

Loopback 3.2.1 polymorphic belongsTo relation filter not working

I'm using Loopback 3.2.1 with postgresql connector. I have this polymorphic belongsTo relation defined in the Question model:

"relations": {
  "related": {
    "type": "belongsTo",
    "model": "questionable",
    "polymorphic": true
  },
}

But querying on related model gives a 500 error "Relation \"related\" is not defined for Question model"

There seems to be a related issue # 1319 in the github repo that was opened on Apr 21, 2015.

Is there a workaround on this.

Solution

  • I ended up defining the polymorphic relation in the model JavaScript file:

    Question.belongsTo('questionable', {
  as: 'related',
  polymorphic: true
});

    This works for me, and gets the related polymorphic relation. Hope this helps others, and the Loopback team resolves this issue soon.