while adding an asset to hyperledger got error that particular field is missing - hyperledger-fabric

Question

i made a business network using hyperledger composer playground i want add an asset in the registry but while adding it is saying that t: Instance com.acn.hps.aops.ims.EvidenceDoc#4439 missing required field owner
.cto file
asset EvidenceDoc identified by evidenceId{
o String evidenceId
o Owner owner
}
participant Owner identified by AuthorityId{
o String AuthorityId
}
transaction addasset{
o EvidenceDoc evidenceDocJson
}
.qry file
.qry file
enter code here
query getOwnerbyId{
description: "Get owner of the evidence asset by its ID"
statement:
SELECT com.acn.hps.aops.ims.Superuser
WHERE (AuthorityId == _$AuthorityId)
}
logic.js file
/**
* #param {com.acn.hps.aops.ims.AddEvidence} addAsset
* #transaction
*/
function AddingEvidence(addAsset){
return getAssetRegistry('com.acn.hps.aops.ims.EvidenceDoc')
.then(function (AssetRegistry) {
// Get the factory for creating new asset instances.
var factory = getFactory();
var result = query('getOwnerbyId',
{AuthorityId:'1'/*addAsset.evidenceDocJson.owner.AuthorityId*/});
// Create the Evidence.
var evidence = factory.newResource('com.acn.hps.aops.ims', 'EvidenceDoc',
addAsset.evidenceDocJson.evidenceId);
evidence.owner = result[0]
// Add the asset to the asset registry.
return AssetRegistry.add(evidence);
})
}

Answer 1

I don't think the query is needed here. Try this.
.cto
namespace com.acn.hps.aops.ims
asset EvidenceDoc identified by evidenceId{
o String evidenceId
o Owner owner
}
participant Owner identified by AuthorityId{
o String AuthorityId
}
transaction addasset{
o EvidenceDoc evidenceDocJson
}
script.js
/**
* #param {com.acn.hps.aops.ims.addasset} addAsset
* #transaction
*/
function AddingEvidence(addAsset){
return getAssetRegistry('com.acn.hps.aops.ims.EvidenceDoc')
.then(function (AssetRegistry) {
// Get the factory for creating new asset instances.
var factory = getFactory();
// Create the Evidence.
var evidence = factory.newResource('com.acn.hps.aops.ims', 'EvidenceDoc',
addAsset.evidenceDocJson.evidenceId);
evidence.owner = addAsset.evidenceDocJson.owner
// Add the asset to the asset registry.
return AssetRegistry.add(evidence);
})
}

Answer 2

So your transaction name needs to match the param section ('addAsset' uppercase) in your transaction logic:
Also would suggest to pass owner as relationship to transaction
In your model
transaction addAsset {
o String evidenceId
--> Owner owner
}
In your transaction code (something like):
/**
* #param {com.acn.hps.aops.ims.addasset} addAsset
* #transaction
*/
function AddingEvidence(addAsset){
console.log('participant is ' + addAsset.owner.AuthorityID);
console.log('getCurrentparticipant is ' + getCurrentParticipant());
// Get the factory for creating new asset instances.
var factory = getFactory();
// Create the Evidence.
var evidence = factory.newResource('com.acn.hps.aops.ims', 'EvidenceDoc', addAsset.evidenceId);
evidence.owner.ID = addAsset.owner.AuthorityID;
return getAssetRegistry('com.acn.hps.aops.ims.EvidenceDoc')
.then(function (registry) {
return registry.add(evidence );
});
}