mongodb help required for one business problem - mongodb

Question

Business Problem:
We are seeing a single customerOrderNumber with all versions having “INACTIVE.” This is a problem for multiple reasons. My goal is to be able to pull a list of customerOrderNumbers with ONLY INACTIVE statuses.
Database and Query: XXX_ORDERMGMT_1
db.getCollection('customerOrder').aggregate( [ { $match: { 'orderDocument.accountInfo.ban': '123456' } }, { $group: { _id: { customerOrderNumber : '$orderReference.customerOrderNumber', status : '$orderReference.customerOrderStatus' }, count: { $sum: 1 } }, }] )
OUTPUT:
/* 1 / { "_id" : { "customerOrderNumber" : "123", "status" : "COMPLETED" }, "count" : 1.0 } / 2 */ { "_id" : { "customerOrderNumber" : "123", "status" : "INACTIVE" }, "count" : 2.0 }
DESIRED_OUTPUT:
/* 1 */ { "_id" : { "customerOrderNumber" : "123", "statusGroupings" : { "status" : "COMPLETED", "status_cnt" : 1.0 }, { "status" : "INACTIVE", "status_cnt" : 2.0 } }, "count" : 3.0 }
( My approach was to pull all customerOrders by status and count, parse it into a relational format, and filter by only customerOrderNumbers with all versions being INACTIVE. This may not be the best way and I’m open to thoughts.)

Answer 1

The following query can get us the expected output:
db.getCollection("customerOrder").aggregate([
{
$match:{
"orderDocument.accountInfo.ban":"123456"
}
},
{
$group:{
"_id":{
"customerOrderNumber":"$orderReference.customerOrderNumber",
"status":"$orderReference.customerOrderStatus"
},
"customerOrderNumber":{
$first:"$orderReference.customerOrderNumber"
},
"status":{
$first:"$orderReference.customerOrderStatus"
},
"count":{
$sum:1
}
}
},
{
$group:{
"_id":"$customerOrderNumber",
"customerOrderNumber":{
$first:"$customerOrderNumber"
},
"statusGroupings":{
$push:{
"status":"$status",
"status_cnt":"$count"
}
},
"count":{
$sum:"$count"
}
}
},
{
$project:{
"_id":0
}
}
]).pretty()
Data set:
{
"_id" : ObjectId("5d9bf7204ed5d873f39a773b"),
"orderDocument" : {
"accountInfo" : {
"ban" : "123456"
}
},
"orderReference" : {
"customerOrderNumber" : 1,
"customerOrderStatus" : "INACTIVE"
}
}
{
"_id" : ObjectId("5d9bf7204ed5d873f39a773c"),
"orderDocument" : {
"accountInfo" : {
"ban" : "123456"
}
},
"orderReference" : {
"customerOrderNumber" : 1,
"customerOrderStatus" : "COMPLETED"
}
}
{
"_id" : ObjectId("5d9bf7204ed5d873f39a773d"),
"orderDocument" : {
"accountInfo" : {
"ban" : "123456"
}
},
"orderReference" : {
"customerOrderNumber" : 1,
"customerOrderStatus" : "INACTIVE"
}
}
{
"_id" : ObjectId("5d9bf7204ed5d873f39a773e"),
"orderDocument" : {
"accountInfo" : {
"ban" : "123456"
}
},
"orderReference" : {
"customerOrderNumber" : 1,
"customerOrderStatus" : "INACTIVE"
}
}
Output:
{
"customerOrderNumber" : 1,
"statusGroupings" : [
{
"status" : "COMPLETED",
"status_cnt" : 1
},
{
"status" : "INACTIVE",
"status_cnt" : 3
}
],
"count" : 4
}