Question

我有一组所有都有地址的属性。

"address" : {
    "street" : "5 Orange Drive",
    "city" : "Orlando",
    "state" : {
        "abbreviation" : "FL",
        "name" : "Florida"
    },
    "zip" : "32822",
    "geo" : {
        "lat" : 28.519,
        "lng" : -81.304
    }
},
"address" : {
    "street" : "16 Main Street",
    "city" : "Tallahassee",
    "state" : {
        "abbreviation" : "FL",
        "name" : "Florida"
    },
    "zip" : "32823",
    "geo" : {
        "lat" : 28.529,
        "lng" : -81.314
    }
},
"address" : {
    "street" : "125 Oak Drive",
    "city" : "Salem",
    "state" : {
        "abbreviation" : "MA",
        "name" : "Massachusetts"
    },
    "zip" : "02108",
    "geo" : {
        "lat" : 24.519,
        "lng" : -83.304
    }
},
"address" : {
    "street" : "96 Jones Way",
    "city" : "Springfield",
    "state" : {
        "abbreviation" : "MA",
        "name" : "Massachusetts"
    },
    "zip" : "01020",
    "geo" : {
        "lat" : 28.519,
        "lng" : -84.304
    }
},
"address" : {
    "street" : "100 Sumner Ave",
    "city" : "Springfield",
    "state" : {
        "abbreviation" : "IL",
        "name" : "Illinois"
    },
    "zip" : "32822",
    "geo" : {
        "lat" : 22.519,
        "lng" : -71.304
    }
},
"address" : {
    "street" : "40 Roger Ave",
    "city" : "Salem",
    "state" : {
        "abbreviation" : "AL",
        "name" : "Alabama"
    },
    "zip" : "32822",
    "geo" : {
        "lat" : 22.519,
        "lng" : -71.304
    }
}

我有一个早期的查询，它返回一个地址数组，例如：

[
    {
        name: 'Massachusetts - Salem',
        city: 'Salem',
        _id: 53784206cd73fbae193b62d5,
        state: [Object]
    }, {
        name: 'Illinois - Springfield',
        city: 'Springfield',
        _id: 5376fa92bde0e0ea047e9abd,
        state: [Object]
    }
]

我想使用上面数组的输出来按地址搜索属性集合。

例如，我想搜索地址中包含“斯普林菲尔德市和伊利诺伊州”以及“塞勒姆市和马萨诸塞州”的所有房产。

我最初尝试使用 $ in 并将 $和混合在一起，但是我不确定是否有可能。

Answer 1

您可以尝试在包含从其他输入数组派生的查询条件的数组上使用 $or 运算符。例如，使用样本属性集合：

db.properties.insert([
{
    "address" : {
        "street" : "5 Orange Drive",
        "city" : "Orlando",
        "state" : {
            "abbreviation" : "FL",
            "name" : "Florida"
        },
        "zip" : "32822",
        "geo" : {
            "lat" : 28.519,
            "lng" : -81.304
        }
    }
},
{
    "address" : {
        "street" : "16 Main Street",
        "city" : "Tallahassee",
        "state" : {
            "abbreviation" : "FL",
            "name" : "Florida"
        },
        "zip" : "32823",
        "geo" : {
            "lat" : 28.529,
            "lng" : -81.314
        }
    }
},
{
    "address" : {
        "street" : "125 Oak Drive",
        "city" : "Salem",
        "state" : {
            "abbreviation" : "MA",
            "name" : "Massachusetts"
        },
        "zip" : "02108",
        "geo" : {
            "lat" : 24.519,
            "lng" : -83.304
        }
    }
},
{
    "address" : {
        "street" : "96 Jones Way",
        "city" : "Springfield",
        "state" : {
            "abbreviation" : "MA",
            "name" : "Massachusetts"
        },
        "zip" : "01020",
        "geo" : {
            "lat" : 28.519,
            "lng" : -84.304
        }
    }
},
{
    "address" : {
        "street" : "100 Sumner Ave",
        "city" : "Springfield",
        "state" : {
            "abbreviation" : "IL",
            "name" : "Illinois"
        },
        "zip" : "32822",
        "geo" : {
            "lat" : 22.519,
            "lng" : -71.304
        }
    }
},
{
    "address" : {
        "street" : "40 Roger Ave",
        "city" : "Salem",
        "state" : {
            "abbreviation" : "AL",
            "name" : "Alabama"
        },
        "zip" : "32822",
        "geo" : {
            "lat" : 22.519,
            "lng" : -71.304
        }
    }
}
])

以下查询将给出所需的结果：

var res = [
    {
        "name": 'Massachusetts - Salem',
        "city": 'Salem',
        "_id": "53784206cd73fbae193b62d5",
        "state": [{"name": "Massachusetts", "abbreviation": "MA"}]
    }, {
        "name": 'Illinois - Springfield',
        "city": 'Springfield',
        "_id": "5376fa92bde0e0ea047e9abd",
        "state": [{"name": "Illinois", "abbreviation": "IL"}]
    }
];

var condition = res.map(function (item){
    return {
        "address.city": item.city,
        "address.state.name": item.state[0].name
    }
});

db.properties.find({"$or": condition });

示例输出

/* 0 */
{
    "_id" : ObjectId("557848b43cab061ff5c618b7"),
    "address" : {
        "street" : "125 Oak Drive",
        "city" : "Salem",
        "state" : {
            "abbreviation" : "MA",
            "name" : "Massachusetts"
        },
        "zip" : "02108",
        "geo" : {
            "lat" : 24.519,
            "lng" : -83.304
        }
    }
}

/* 1 */
{
    "_id" : ObjectId("557848b43cab061ff5c618b9"),
    "address" : {
        "street" : "100 Sumner Ave",
        "city" : "Springfield",
        "state" : {
            "abbreviation" : "IL",
            "name" : "Illinois"
        },
        "zip" : "32822",
        "geo" : {
            "lat" : 22.519,
            "lng" : -71.304
        }
    }
}

Mongo / Mongoose - 按部分文件查找

1 个答案: