Question

我正在尝试存储Vertex本身对Vertex所做的更改列表。理想情况下我会想要这样的东西：

{
    "id": "95fcfa87-1c03-436d-b3ca-340cea926ee9",
    "label": "person",
    "type": "vertex",
    "log": [{
            "user": "user@user.dk",
            "action": "update",
            "timestamp": "22-03-2017",
            "field": "firstName",
            "oldValue": "Marco"
        }
    ]
}

使用此方法链我可以实现以下结构

graph.addV('person')
     .property('firstName', 'Thomas')
     .property(list, 'log', '22-03-2017')
     .properties('log')
     .hasValue('22-03-2017', '21-03-2017')
     .property('user','user@user.dk')
     .property('action', 'update')
     .property('field', 'firstName')
     .property('oldValue', 'Marco')

{
    "id": "95fcfa87-1c03-436d-b3ca-340cea926ee9",
    "label": "person",
    "type": "vertex",
    "properties": {
        "firstName": [{
                "id": "f23482a9-48bc-44e0-b783-3b74a2439a11",
                "value": "Thomas"
            }
        ],
        "log": [{
                "id": "5cfa35e1-e453-42e2-99b1-eb64cd853f22",
                "value": "22-03-2017",
                "properties": {
                    "user": "user@user.dk",
                    "action": "update",
                    "field": "firstName",
                    "oldValue": "Marco"
                }
            }
        ]
    }
}

然而，这似乎过于复杂，因为我必须存储一个值并为其添加属性是否可以使用上述数据添加匿名对象（即没有id和value）？

Answer 1

不是在历史记录日志中存储正确对象的实际解决方案，但如果您只是将其用作日志而不必通过其属性访问或查询它，那么您可以将序列化的JSON放入值中吗？

沿着这些线条的东西应该接近你要求的结构：

dynamic entry = new JObject();
entry.user = "user@user.dk";
entry.action = "update";
entry.timestamp = "22-03-2017 12:34:56";
entry.field = "firstName";
entry.oldValue = "Marco";

graph.addV('person')
     .property('firstName', 'Thomas')
     .property(list, 'log', entry.ToString());

{
    "id": "95fcfa87-1c03-436d-b3ca-340cea926ee9",
    "label": "person",
    "type": "vertex",
    "properties": {
        "firstName": [{
                "id": "f23482a9-48bc-44e0-b783-3b74a2439a11",
                "value": "Thomas"
            }
        ],
        "log": [{
                "id": "5cfa35e1-e453-42e2-99b1-eb64cd853f22",
                "value": "{\"user\":\"user@user.dk\",\"action\":\"update\",\"timestamp\":\"22-03-2017\",\"field\":\"firstName\",\"oldValue\":\"Marco\"}"
            }
        ]
    }
}

这些日志条目可以很容易地被读取，反序列化，使用和呈现，但对于可查询性不会有太大作用。

使用Gremlin和Azure Cosmos Graph在顶点中存储列表

1 个答案: