Handling 'or' and 'and' condition for fetching data in project - mongodb

Question

I have a collection with data like
"Name": "....",
...
"RoomStatusDetails": [
{
"StatusEntryId": ObjectId("5be1895dbb2c5620c4003ae0"),
"RoomId": "41964158-0131-7b55-7781-a29084879e1a",
"CurrentStatus": ObjectId("5bd17295d2ccda11f0007765"),
"StartDate": ISODate("2018-11-06T05:00:00.0Z"),
"Notes": "",
"Discrepancy": "",
"Waiver": "",
"TFlight": "",
"IsActive": "Inactive"
},
{
"StatusEntryId": ObjectId("5be1896cbb2c5620c4003ae1"),
"RoomId": "41964158-0131-7b55-7781-a29084879e1a",
"CurrentStatus": ObjectId("5bd17295d2ccda11f0007766"),
"StartDate": ISODate("2018-11-06T05:00:00.0Z"),
"Notes": "",
"Discrepancy": "",
"Waiver": "",
"TFlight": "",
"IsActive": "Active"
},
{
"StatusEntryId": ObjectId("5bf4e8a83250041388000edf"),
"RoomId": "d72136ac-b295-d4ea-2d32-0f9ef26b7df1",
"CurrentStatus": ObjectId("5bd17295d2ccda11f0007766"),
"StartDate": ISODate("2018-11-26T23:00:00.0Z"),
"Notes": "",
"Discrepancy": "",
"Waiver": "",
"TFlight": "",
"IsActive": "Active"
},
{
"StatusEntryId": ObjectId("5bf4e8db3250041388000ee0"),
"RoomId": "4c980185-65eb-eece-8176-7f187eed3132",
"CurrentStatus": ObjectId("5bd17295d2ccda11f0007765"),
"StartDate": ISODate("2018-11-18T23:00:00.0Z"),
"Notes": "",
"Discrepancy": "",
"Waiver": "",
"TFlight": "",
"IsActive": "Active"
},
{
"StatusEntryId": ObjectId("5bf4e97f3250041388000ee1"),
"RoomId": "407225eb-2990-263b-4112-068d3ef0e1b2",
"CurrentStatus": ObjectId("5bd17295d2ccda11f0007768"),
"StartDate": ISODate("2018-12-05T23:00:00.0Z"),
"Notes": "",
"Discrepancy": "",
"Waiver": "",
"TFlight": "",
"IsActive": "Active"
}
],
I am trying below lines of code
$this->collection->aggregate(array(
array(
'$project' => array(
'RoomStatusDetails' => array(
'$filter' => array(
'input' => '$RoomStatusDetails',
'as' => 'item',
'cond' => array(
'$or' => [
['$eq' => ['$$item.CurrentStatus', new MongoDB\BSON\ObjectID($this->CAOutOfService)]],
['$eq' => ['$$item.CurrentStatus', new MongoDB\BSON\ObjectID($this->OutOfService)]]
],
['$eq' => ['$$item.IsActive', 'Active']]
)
)
),
'Name' => 1,
'Address' => 1,
'NoOfFloors' => 1,
'Image' => 1,
'Bay' => 1,
'Approved' => 1,
'RoomsDetails' => 1,
'AllotmentsDetails' => 1,
//'TotalNumberOfCapacitiesArray' => 1
)
),
))->toArray();
I am trying to project embedded document RoomStatusDetails and I am trying to fetch only those RoomStatusDetails data where Current Status can be "5bd17295d2ccda11f0007765" or "5bd17295d2ccda11f0007766" which are present in $this->CAOutOfService or $this->OutOfService variables respectively and their IsActive is "Active".
The above code is throwing error "An object representing an expression must have exactly one field: { $or: [ { $eq: [ \"$$item.CurrentStatus\", ObjectId('5bd17295d2ccda11f0007769') ] }, { $eq: [ \"$$item.CurrentStatus\", ObjectId('5bd17295d2ccda11f0007766') ] } ], 0: { $eq: [ \"$$item.IsActive\", \"Active\" ] } }"
Please help!!!

Answer 1

You can build your query like this
db.col.aggregate([{
"$project": {
"RoomStatusDetails": {
"$filter": {
"input": "$RoomStatusDetails",
"as": "stat",
cond: {
"$and": [{
$or: [{
$eq: ["$$stat.CurrentStatus", ObjectId("5bd17295d2ccda11f0007766")]
},
{
$eq: ["$$stat.CurrentStatus", ObjectId("5bd17295d2ccda11f0007765")]
}
]
},
{
$eq: ["$$stat.IsActive", "Active"]
}
]
}
}
}
}
}
])