如何在Weaviate中交叉引用另一个对象？

Question

我如何在Weaviate对另一件事进行交叉引用？

我尝试了下面的代码，但是我得到了一条错误消息(也在下面)

weaviateObj = {
  "class": "Article",
  "schema": {
     "articleTitle": articlemeta.title,
     "publisherId": articlemeta.publisherId,
     "digitalObjectIdentifier": articlemeta.digitalObjectIdentifier,
     "publishedInJournal": {
          "beacon" : WEAVIATE_URL + "/v1/things/" + journaluuid
     }
    }
}

r = runREST(WEAVIATE_URL + "/v1/things", weaviateObj, 0, "POST")

错误：

{
    "error": [
        {
            "message": "invalid thing: invalid cref: reference must be an array, but got a map: map[string]interface {}{\"beacon\":\"http://localhost:8080/v1/things/7d60395e-db76-4401-9994-692ce0f5b10d\"}"
        }
    ]
}

Answer 1

答案可以在错误信息中找到；

invalid cref: reference must be an array, but got a map: map[string]interface {}

您正在发送这样一个map[string]：

"publishedInJournal": {
     "beacon" : WEAVIATE_URL + "/v1/things/" + journaluuid
}

但它应该是一个数组：

"publishedInJournal": [{
     "beacon" : WEAVIATE_URL + "/v1/things/" + journaluuid
}]

PS：

另外，也不确定WEAVIATE_URL给出了什么内容，但请确保语法是：weaviate://localhost/things/ + journaluuid。