Unable to query on Relationship.

[jason-fox]

Stellio 2.18.1

I have a number of Shelf entities like this:

 {
        "id": "urn:ngsi-ld:Shelf:unit001",
        "type": "Shelf",
        "stocks": {
            "type": "Relationship",
            "object": "urn:ngsi-ld:Product:001"
        },
       "numberOfItems": {
            "type": "Property",
            "value": 15
        }
}

Querying on the property retrieves the entity correctly ✅

curl -L 'http://localhost:8080/ngsi-ld/v1/entities/?type=Shelf&options=keyValues&q=numberOfItems%3E0' \
-H 'Link: <http://context/user-context.jsonld>; rel="http://www.w3.org/ns/json-ld#context"; type="application/ld+json"' \
-H 'Accept: application/json'

Querying on the relationship returns an empty array ❌

curl -L 'http://localhost:8080/ngsi-ld/v1/entities/?type=Shelf&q=stocks%3D%3D%22urn%3Angsi-ld%3AProduct%3A001%22' \
-H 'Link: <http://context/user-context.jsonld>; rel="http://www.w3.org/ns/json-ld#context"; type="application/ld+json"' \
-H 'Accept: application/json'

Querying on both the property and relationship also returns an empty array ❌

curl -L 'http://localhost:8080/ngsi-ld/v1/entities/?type=Shelf&options=keyValues&q=numberOfItems%3E0%3BlocatedIn%3D%3D%22urn%3Angsi-ld%3ABuilding%3Astore001%22%3Bstocks%3D%3D%22urn%3Angsi-ld%3AProduct%3A001%22' \
-H 'Link: <http://context/user-context.jsonld>; rel="http://www.w3.org/ns/json-ld#context"; type="application/ld+json"' \
-H 'Accept: application/json'

[bobeal]

this works:

http http://localhost:8080/ngsi-ld/v1/entities/?type=Shelf&q=stocks==urn:ngsi-ld:Product:001

but not this:

http http://localhost:8080/ngsi-ld/v1/entities/?type=Shelf&q=stocks=="urn:ngsi-ld:Product:001"

basically because, in the 2nd case, Stellio says it is a string, not an URI, so it does not match the object of the relationship.

will look at it.