1
蒙戈聚合$過濾器,我有以下文件在ISO日期值
{
"_id": "57b4c5f0291ebb13110b888e",
"first": "John",
"last": "Smith",
"email": "[email protected]",
"fulfillments": [
{
"_id": "57b683e531a5a21679b78e6d",
"created_by_name": "John Smith",
"created_by_id": "57b4c5f0291ebb23110b888e",
"fulfilled_by_name": "John Smith",
"fulfilled_by_id": "57b4c5f0291ebb13110b888e",
"date": new Date("2016-08-23T13:58:15-0700")
}
]
}
對於那些我有我只想返回尚未發生應驗列表中選擇一個蒙戈查詢。這意味着履行嵌入式文檔上的date
屬性大於當前時間。
db.users.aggregate([
{ $match : { "_id" : "57b4c5f0291ebb13110b888e" } },
{ $project : {
"fulfillments" : {
$filter : {
"input" : "$fulfillments",
"as" : "item",
"cond" : ...SOMETHING HERE TO FILTER ON 'date'
}
}
}
},
{ $unwind : "$fulfillments" },
{ $project : {
"created_by_name" : "$fulfillments.created_by_name",
"created_by_id" : "$fulfillments.created_by_id",
"fulfilled_by_name" : "$fulfillments.fulfilled_by_name",
"fulfilled_by_id" : "$fulfillments.fulfilled_by_id",
"date" : "$fulfillments.date"
}
}
])
我無法找出正確的方法是過濾只應驗了date
尚未發生什麼。