lokijs从N个嵌套文档中发现价值

Question

我在ionic上使用lokijs查找产品。我必须在集合中找到匹配的 products ，其值在 n 嵌套数组或JSON下面给出的文档中或集合。您会看到产品可能包含在儿童的任何地方。但这是文档关系上的最后一个孩子。

我不知道。要在嵌套文档中查找值

[{
  "id":1,
  "name":"Garbodrain",
  "categories":[
     {
        "id":1,
        "name":"Houseold",
        "child_categories":[
           {
              "id":2,
              "name":"Small",
              "child_categories":[
                 {
                    "id":4,
                    "name":"1000",
                    "child_categories":[

                    ],
                    "products":[

                    ]
                 },
                 {
                    "id":5,
                    "name":"2000",
                    "child_categories":[

                    ],
                    "products":[
                       {
                          "id":2,
                          "name":"Garbo Drain 2000",
                       }
                    ]
                 }
              ],
              "products":[

              ]
           },
           {
              "id":3,
              "name":"Large",
              "child_categories":[

              ],
              "products":[

              ]
           }
        ],
        "products":[
           {
              "id":1,
              "name":"G 1000",
           }
        ]
     }
  ],
  "products":[
     {
        "id":4,
        "name":"Un Categorised EcoBin",
     }
  ]}]