Question

我如何使用猫鼬聚合函数基于每次匹配计算（相对于计数，获胜率）计数？我有以下收藏：

用户集合：

{
    "_id": "5d1318f8bf93dd6d9aee05dd",
    "name": "A",
    "tribe": "human",
    "point": 1100
},
{
    "_id": "5d197979f984b60edf070cfd",
    "name": "B",
    "tribe": "elf",
    "point": 1000
},
... more

比赛集合：

{
    "_id": "5d242b3244f1734f02d62883",
    "mathcedAt": "2019-07-09",
    "winner": { /* user model ({type: 'ObjectId', ref: 'User'}) */
        "_id": "5d1318f8bf93dd6d9aee05dd",
        "name": "A",
        "tribe": "human",
        "point": 1100
    },
    "loser": { /* user model ({type: 'ObjectId', ref: 'User'}) */
        "_id": "5d197979f984b60edf070cfd",
        "name": "B",
        "tribe": "elf",
        "point": 1000
    },
},
... more

我想要的结果

1）应基于所有用户和每个点显示排名。

2）与对手的比赛结果也应包括每个部落的结果。（例如vsElf，vsHuman ..）

{
    "user": {
        "_id": "5d1318f8bf93dd6d9aee05dd",
        "name": "A",
        "tribe": "human",
        "point": 1100
    },
    "ranking": 1, // Based on all users and each point
    "totalCount": {
        "win": 1,
        "lose": 0,
    }
    "winCount": {
        "vsElf": 1,
        "vsHuman": 0,
    },
    "loseCount": {
        "vsElf": 0,
        "vsHuman": 0,
    },
    "winRate": {
        "vsElf": "100%",
        "vsHuman": "",
    }
},
{
    "user": {
        "_id": "5d197979f984b60edf070cfd",
        "name": "B",
        "tribe": "elf",
        "point": 1000
    },
    "ranking": 2, // Based on all users and each point
    "totalCount": {
        "win": 0,
        "lose": 1,
    }
    "winCount": {
        "vsElf": 0,
        "vsHuman": 0,
    },
    "loseCount": {
        "vsElf": 0,
        "vsHuman": 1,
    },
    "winRate": {
        "vsElf": "100%",
        "vsHuman": "",
    }
}
... more

如何使用猫鼬获得以上结果？我尝试了很多方法，但是没用。.

非常感谢

猫鼬：汇总计数，分组和集合排名

0 个答案: