Mongodb sorting issue - mongodb

Question

My mongodb collection:
[{
"_id" : ObjectId("5dd6598d55396f36052e347d"),
"isActive" : true,
"myarray" : [
{
"my_id" : "5d967d08821b4031a197b002",
"name" : "jack"
},
{
"my_id" : "5d967d2c821b4031a197b003",
"name" : "manison"
}
]
},
{
"_id" : ObjectId("5dd6598d55396f36052e347d"),
"isActive" : true,
"myarray" : [
{
"my_id" : "5d967d08821b4031a197b002",
"name" : "penelope"
},
{
"my_id" : "5d967d2c821b4031a197b003",
"name" : "cruz"
}
]
}]
Here i am trying to sort based on the name.
not expecting to sort inside the array but expecting outside.
Expecting result be like
[{
"_id" : ObjectId("5dd6598d55396f36052e347d"),
"isActive" : true,
"myarray" : [
{
"my_id" : "5d967d08821b4031a197b002",
"name" : "penelope"
},
{
"my_id" : "5d967d2c821b4031a197b003",
"name" : "cruz"
}
]
},{
"_id" : ObjectId("5dd6598d55396f36052e347d"),
"isActive" : true,
"myarray" : [
{
"my_id" : "5d967d08821b4031a197b002",
"name" : "jack"
},
{
"my_id" : "5d967d2c821b4031a197b003",
"name" : "manison"
}
]
}]
"name" : "cruz" coming first because alphabatically C comes fast than J AND M (which is in second json)
And Prenelop and cruz didn't switched just the main document json switched as per the name order
Query i am using
db.traffic.aggregate([
{$unwind: "$customFieldArray"},
{$sort: {"customFieldArray.field_value":1}},
{$group: {_id:"$_id", customFieldArray: {$push:"$customFieldArray"}}}
]);
But it is sorting inside like taking cruz to penelope and vice versa.
And main json staying stable.
Please have a look

Answer 1

You can do with simple find query with sort cursor
db.traffic.find({}).sort({ "myarray.name": -1 })
From the docs
With arrays, a less-than comparison or an ascending sort compares the
smallest element of arrays, and a greater-than comparison or a
descending sort compares the largest element of the arrays.