我的收藏中有以下文件:
{
"_id": ObjectId('555a33d69487b45401ec1149'),
"nombre": "demo",
"roles": [
{
"id": ObjectId('556ca1999487009c1fac125f'),
"nombre": "rol1"
},
{
"id": ObjectId('556ca1a09487009c1fac1260'),
"nombre": "rol2"
},
{
"id": ObjectId('556ca1a69487009c1fac1261'),
"nombre": "rol3"
}
],
"usuarios": [
{
"id": ObjectId('556ca1de9487009c1fac1262'),
"activo": true,
"roles": [
{
"id": ObjectId('556ca1999487009c1fac125f')
}
]
},
{
"id": ObjectId('556ca2659487009c1fac1263'),
"activo": true,
"roles": [
{
"id": ObjectId('556ca1a09487009c1fac1260')
}
]
},
{
"id": ObjectId('556ca27a9487009c1fac1264'),
"activo": true,
"roles": [
{
"id": ObjectId('556ca1a69487009c1fac1261')
}
]
}
]
}
{
"_id": ObjectId('556f457594877b4502b2e85d'),
"nombre": "app3",
"roles": [
{
"id": ObjectId('556f45fa94877b4502b2e864'),
"nombre": "rol1_app3"
},
{
"id": ObjectId('556f460194877b4502b2e865'),
"nombre": "rol3_app3"
},
{
"id": ObjectId('556f460694877b4502b2e866'),
"nombre": "rol5_app3"
},
{
"id": ObjectId('556f460b94877b4502b2e867'),
"nombre": "rol7_app3"
}
],
"usuarios": [
{
"id": ObjectId('556ca1de9487009c1fac1262'),
"activo": true,
"roles": [
{
"id": ObjectId('556f460b94877b4502b2e867')
},
{
"id": ObjectId('556f460194877b4502b2e865')
}
]
}
]
}
我想要的是指定' usuarios.id'并获得所有" roles.id" ," roles.nombre"由每个文件所在的' usuarios.id'存在。
我试过这个:
- 首先使用' usuarios.id'声明一个var。我正在寻找
var uid = new ObjectId("556ca1de9487009c1fac1262")
然后我执行这个:
db.aplicacion.aggregate([
{ $match: { "usuarios.id" : uid, "usuarios.activo" : true } },
{ $unwind: "$usuarios"},
{ $unwind: "$usuarios.roles"},
{ $match: { "usuarios.id" : uid } },
{ $unwind: "$roles"},
{ $project: { "nombre":1, "usuarios.roles.id":1 , "usuarios.id":1, "roles.id":1, "roles.nombre":1 }}
]).pretty();
但结果如下:
{
"_id" : ObjectId("555a33d69487b45401ec1149"),
"nombre" : "demo",
"roles" : {
"id" : ObjectId("556ca1999487009c1fac125f"),
"nombre" : "rol1"
},
"usuarios" : {
"id" : ObjectId("556ca1de9487009c1fac1262"),
"roles" : {
"id" : ObjectId("556ca1999487009c1fac125f")
}
}
}
{
"_id" : ObjectId("555a33d69487b45401ec1149"),
"nombre" : "demo",
"roles" : {
"id" : ObjectId("556ca1a09487009c1fac1260"),
"nombre" : "rol2"
},
"usuarios" : {
"id" : ObjectId("556ca1de9487009c1fac1262"),
"roles" : {
"id" : ObjectId("556ca1999487009c1fac125f")
}
}
}
{
"_id" : ObjectId("555a33d69487b45401ec1149"),
"nombre" : "demo",
"roles" : {
"id" : ObjectId("556ca1a69487009c1fac1261"),
"nombre" : "rol3"
},
"usuarios" : {
"id" : ObjectId("556ca1de9487009c1fac1262"),
"roles" : {
"id" : ObjectId("556ca1999487009c1fac125f")
}
}
}
{
"_id" : ObjectId("556f457594877b4502b2e85d"),
"nombre" : "app3",
"roles" : {
"id" : ObjectId("556f45fa94877b4502b2e864"),
"nombre" : "rol1_app3"
},
"usuarios" : {
"id" : ObjectId("556ca1de9487009c1fac1262"),
"roles" : {
"id" : ObjectId("556f460b94877b4502b2e867")
}
}
}
{
"_id" : ObjectId("556f457594877b4502b2e85d"),
"nombre" : "app3",
"roles" : {
"id" : ObjectId("556f460194877b4502b2e865"),
"nombre" : "rol3_app3"
},
"usuarios" : {
"id" : ObjectId("556ca1de9487009c1fac1262"),
"roles" : {
"id" : ObjectId("556f460b94877b4502b2e867")
}
}
}
{
"_id" : ObjectId("556f457594877b4502b2e85d"),
"nombre" : "app3",
"roles" : {
"id" : ObjectId("556f460694877b4502b2e866"),
"nombre" : "rol5_app3"
},
"usuarios" : {
"id" : ObjectId("556ca1de9487009c1fac1262"),
"roles" : {
"id" : ObjectId("556f460b94877b4502b2e867")
}
}
}
{
"_id" : ObjectId("556f457594877b4502b2e85d"),
"nombre" : "app3",
"roles" : {
"id" : ObjectId("556f460b94877b4502b2e867"),
"nombre" : "rol7_app3"
},
"usuarios" : {
"id" : ObjectId("556ca1de9487009c1fac1262"),
"roles" : {
"id" : ObjectId("556f460b94877b4502b2e867")
}
}
}
{
"_id" : ObjectId("556f457594877b4502b2e85d"),
"nombre" : "app3",
"roles" : {
"id" : ObjectId("556f45fa94877b4502b2e864"),
"nombre" : "rol1_app3"
},
"usuarios" : {
"id" : ObjectId("556ca1de9487009c1fac1262"),
"roles" : {
"id" : ObjectId("556f460194877b4502b2e865")
}
}
}
{
"_id" : ObjectId("556f457594877b4502b2e85d"),
"nombre" : "app3",
"roles" : {
"id" : ObjectId("556f460194877b4502b2e865"),
"nombre" : "rol3_app3"
},
"usuarios" : {
"id" : ObjectId("556ca1de9487009c1fac1262"),
"roles" : {
"id" : ObjectId("556f460194877b4502b2e865")
}
}
}
{
"_id" : ObjectId("556f457594877b4502b2e85d"),
"nombre" : "app3",
"roles" : {
"id" : ObjectId("556f460694877b4502b2e866"),
"nombre" : "rol5_app3"
},
"usuarios" : {
"id" : ObjectId("556ca1de9487009c1fac1262"),
"roles" : {
"id" : ObjectId("556f460194877b4502b2e865")
}
}
}
{
"_id" : ObjectId("556f457594877b4502b2e85d"),
"nombre" : "app3",
"roles" : {
"id" : ObjectId("556f460b94877b4502b2e867"),
"nombre" : "rol7_app3"
},
"usuarios" : {
"id" : ObjectId("556ca1de9487009c1fac1262"),
"roles" : {
"id" : ObjectId("556f460194877b4502b2e865")
}
}
}
这是每个rol.id的产品,我期望得到的是这样的东西(只有那些在哪里:roles.id = usuarios.roles.id:
{
"_id" : ObjectId("555a33d69487b45401ec1149"),
"nombre" : "demo",
"roles" : {
"id" : ObjectId("556ca1999487009c1fac125f"),
"nombre" : "rol1"
},
"usuarios" : {
"id" : ObjectId("556ca1de9487009c1fac1262"),
"roles" : {
"id" : ObjectId("556ca1999487009c1fac125f")
}
}
},
{
"_id" : ObjectId("556f457594877b4502b2e85d"),
"nombre" : "app3",
"roles" : {
"id" : ObjectId("556f460b94877b4502b2e867"),
"nombre" : "rol7_app3"
},
"usuarios" : {
"id" : ObjectId("556ca1de9487009c1fac1262"),
"roles" : {
"id" : ObjectId("556f460b94877b4502b2e867")
}
}
},
{
"_id" : ObjectId("556f457594877b4502b2e85d"),
"nombre" : "app3",
"roles" : {
"id" : ObjectId("556f460194877b4502b2e865"),
"nombre" : "rol3_app3"
},
"usuarios" : {
"id" : ObjectId("556ca1de9487009c1fac1262"),
"roles" : {
"id" : ObjectId("556f460194877b4502b2e865")
}
}
}
任何想法??
这是我目前的剧本:
var uid = new ObjectId("556ca1de9487009c1fac1262")
db.aplicacion.aggregate([
{ $match: { "usuarios.id" : uid, "usuarios.activo" : true } },
{ $unwind: "$usuarios"},
{ $unwind: "$usuarios.roles"},
{ $match: { "usuarios.id" : uid } },
{ $unwind: "$roles"},
{ $project: { "nombre":1, "usuarios.roles.id":1 , "usuarios.id":1, "roles.id":1, "roles.nombre":1 }}
]).pretty();
更新
使用@yogesh解决方案后,我对脚本做了一点改进:
db.coll.aggregate({
"$unwind": "$usuarios"
}, {
"$match": {
"usuarios.id": ObjectId("556ca1de9487009c1fac1262"),
"usuarios.activo":true,
}
}, {
"$unwind": "$usuarios.roles"
}, {
"$unwind": "$roles"
}, {
"$project": {
"nombre": 1,
"roles.id": 1,
"roles.nombre": 1,
"roles.activo": 1,
"matched": {
"$eq": ["$roles.id", "$usuarios.roles.id"], //macthed roles.id == usuarios.roles.id
}
}
}, {
"$match": {
"matched": true,
"roles.activo" : true
}
},
{
$group : {
_id : "$_id",
nombre: { $first: "$nombre" },
roles : {
$push : "$roles"
}
}
}).pretty();
添加了一个$ group,结果我认为结构更好:
{
"_id" : ObjectId("556f457594877b4502b2e85d"),
"nombre" : "app3",
"roles" : [
{
"id" : ObjectId("556f460b94877b4502b2e867"),
"nombre" : "rol7_app3",
"activo" : true
},
{
"id" : ObjectId("556f460194877b4502b2e865"),
"nombre" : "rol3_app3",
"activo" : true
}
]
}
{
"_id" : ObjectId("555a33d69487b45401ec1149"),
"nombre" : "demo",
"roles" : [
{
"id" : ObjectId("556ca1999487009c1fac125f"),
"nombre" : "rol1",
"activo" : true
}
]
}
再次感谢@yogesh
答案 0 :(得分:0)
您的汇总错过了您应该在project
到macthed roles.id == usuarios.roles.id
下方匹配的一些事项,请检查以下汇总:
db.collectionName.aggregate({
"$unwind": "$usuarios"
}, {
"$match": {
"usuarios.id": ObjectId("556ca1de9487009c1fac1262")
}
}, {
"$unwind": "$usuarios.roles"
}, {
"$unwind": "$roles"
}, {
"$project": {
"nombre": 1,
"roles": 1,
"usuarios.id": 1,
"usuarios.activo": 1,
"usuarios.roles.id": 1,
"matched": {
"$eq": ["$roles.id", "$usuarios.roles.id"] //macthed roles.id == usuarios.roles.id
}
}
}, {
"$match": {
"matched": true
}
}).pretty()