Requirement: Query subdocuments and insert a new document item by item in combination with the parent document field
For example, a document:
{
"_id" : ObjectId("59bb5698c37fe6085b36f7d5"),
"skuId" : "a19011100abc0084",
"stockGroup" : "ABC_01",
"orderflowJsonEncode" : [
{
"calcDate" : "2016-01-28",
"acbQty" : NumberInt(0),
"abcQty" : NumberInt(30),
"stockQty" : NumberInt(0),
"isActiveDay" : true,
"outQtyWhenFullStockQty" : NumberInt(30)
},
{
"calcDate" : "2016-01-29",
"acbQty" : NumberInt(0),
"abcQty" : NumberInt(13),
"stockQty" : NumberInt(53),
"isActiveDay" : true,
"outQtyWhenFullStockQty" : NumberInt(13)
}
],
"createdOn" : "2017-09-05 12:27:04",
"createdBy" : "helloworld"
}Through sub-document splitting, expected results:
{
"_id" : ObjectId("59bb5698c37fe6085b36f7d5"),
"skuId" : "a19011100abc0084",
"stockGroup" : "ABC_01",
"calcDate" : "2016-01-28",
"acbQty" : NumberInt(0),
"abcQty" : NumberInt(30),
"stockQty" : NumberInt(0),
"isActiveDay" : true,
"outQtyWhenFullStockQty" : NumberInt(30)，
"createdOn" : "2017-09-05 12:27:04",
"createdBy" : "helloworld"
}
{
"_id" : ObjectId("59bb5698c37fe6085b36f7d5"),
"skuId" : "a19011100abc0084",
"stockGroup" : "ABC_01",
"calcDate" : "2016-01-29",
"acbQty" : NumberInt(0),
"abcQty" : NumberInt(13),
"stockQty" : NumberInt(53),
"isActiveDay" : true,
"outQtyWhenFullStockQty" : NumberInt(13)，
"createdOn" : "2017-09-05 12:27:04",
"createdBy" : "helloworld"
}Is there any way to achieve this?
var a={ "_id" : ObjectId("59bb5698c37fe6085b36f7d5"), "skuId" : "a19011100abc0084", "stockGroup" : "ABC_01", "orderflowJsonEncode" : [ { "calcDate" : "2016-01-28", "acbQty" : NumberInt(0), "abcQty" : NumberInt(30), "stockQty" : NumberInt(0), "isActiveDay" : true, "outQtyWhenFullStockQty" : NumberInt(30) }, { "calcDate" : "2016-01-29", "acbQty" : NumberInt(0), "abcQty" : NumberInt(13), "stockQty" : NumberInt(53), "isActiveDay" : true, "outQtyWhenFullStockQty" : NumberInt(13) } ], "createdOn" : "2017-09-05 12:27:04", "createdBy" : "helloworld" } db.a.insert(a) db.a.aggregate( { $unwind:"$orderflowJsonEncode" },{ $project:{ _id: 1, skuId: 1, stockGroup: 1, calcDate: "$orderflowJsonEncode.calcDate", acbQty: "$orderflowJsonEncode.acbQty", abcQty: "$orderflowJsonEncode.abcQty", stockQty: "$orderflowJsonEncode.stockQty", isActiveDay: "$orderflowJsonEncode.isActiveDay", outQtyWhenFullStockQty: "$orderflowJsonEncode.outQtyWhenFullStockQty", createdOn: 1, createdBy: 1 } } ).pretty()The operation results are as follows:
{ "_id" : ObjectId("59bb5698c37fe6085b36f7d5"), "skuId" : "a19011100abc0084", "stockGroup" : "ABC_01", "createdOn" : "2017-09-05 12:27:04", "createdBy" : "helloworld", "calcDate" : "2016-01-28", "acbQty" : 0, "abcQty" : 30, "stockQty" : 0, "isActiveDay" : true, "outQtyWhenFullStockQty" : 30 } { "_id" : ObjectId("59bb5698c37fe6085b36f7d5"), "skuId" : "a19011100abc0084", "stockGroup" : "ABC_01", "createdOn" : "2017-09-05 12:27:04", "createdBy" : "helloworld", "calcDate" : "2016-01-29", "acbQty" : 0, "abcQty" : 13, "stockQty" : 53, "isActiveDay" : true, "outQtyWhenFullStockQty" : 13 }
