Multiple $group mongo request PHP - php

Question

I would like to make a request with two $ group.
Here you can see the structure of my data :
{
"_id" : ObjectId("573495af4e998fec800041a7"),
"uniqid" : "not573495aeda725",
"status" : "waiting,
"date" : ISODate("2016-05-12T14:39:42.000+0000"),
"id_transaction" : null,
"hash_file" : null,
"user" : "Michel",
"desc" : "undefined",
"pharmacy" : "p56cdc980ba57f"
},
{
"_id" : ObjectId("573495af4e998fec800041a7"),
"uniqid" : "not573495aeda725",
"status" : "waiting,
"date" : ISODate("2016-05-12T14:39:42.000+0000"),
"id_transaction" : null,
"hash_file" : null,
"user" : "Julien",
"desc" : "undefined",
"pharmacy" : "p72gdf210xs68t"
}
Here is where i am in my aggregate from now :
$pipeline = array(
array(
'$project' => array(
'year' => array('$year' => array('$add' => array('$date',$offset))),
'month' => array('$month' => array('$add' => array('$date',$offset))),
'day' => array('$dayOfMonth' => array('$add' => array('$date',$offset))),
'hour' => array('$hour' => array('$add' => array('$date',$offset))),
"uniqid" => 1,
"status" => 1,
"date" => 1,
"pharmacy" => 1
)
),
array(
'$match' => array(
'$and' => array(
array(
"status" => array('$ne' => null)
),
array(
"status" => array('$ne' => "error")
),
array(
"date" => array('$lte' => new MongoDate(time()))
),
array(
"date" => array('$gt' => new MongoDate(strtotime($sixMonthAgo->format('Y-m-d'))))
)
)
)
),
array(
'$group' => array(
'_id' => array(
"month" => array('$month' => '$date'),
"year" => array('$year' => '$date'),
),
'count' => array('$sum' => 1)
)
),
array(
'$group' => array(
'_id' => array(
),
'count' => array('$sum' => 1)
)
)
);
I would like to have the number on lines where status = "waiting" grouping my request by "year/month" and by "pharmacy".
Thank you so much !

Answer 1

array(
'$group' => array(
'_id' => array(
"month" => array('$month' => '$date'),
"year" => array('$year' => '$date'),
"status"
),
'count' => array('$sum' => 1)
)
),
then instead of grouping - use match for _id.status ="waiting"

Answer 2

You do not need any $project ... Mongo Query should be -
[
{
"$match": {
"status": "waiting",
"date": {
"$gt": {
"$date": "DATE_SIX_MONTH_AGO"
},
"$lt": {
"$date": "CURRENT_DATE"
}
}
}
},
{
"$group": {
"_id": {
"month": {
"$month": "$date"
},
"year": {
"$year": "$date"
},
"pharmacy": "$pharmacy"
},
"count": {
"$sum": 1
}
}
}
]
In PHP it should be -
$pipeline = array(
array(
'$match' => array(
"status" => "waiting",
"date" => array(
'$lte' => new MongoDate(time()),
'$gt' => new MongoDate(strtotime($sixMonthAgo->format('Y-m-d')))
)
)
),
array(
'$group' => array(
'_id' => array(
"month" => array('$month' => '$date'),
"year" => array('$year' => '$date'),
"pharmacy" => '$pharmacy'
),
'count' => array('$sum' => 1)
)
)
);
I did not test in PHP, check and correct the syntax errors if any.