I have the following Mongo Aggregate query:
db.getCollection('datas').aggregate(
{
"$match":{
"payload.category_ids":ObjectId("5502b04bee60fc1ed06e2fa4"),
"time":{ "$gte":new Date(2015,4,22) }
}
},
{
"$group":{
_id: "$user_id",
num_use: {"$sum":1}
}
},
{
"$sort":{"num_use":-1}
},
{
"$match": {
'num_use':{"$gte":10}
}
}
)
Which I am attempting to turn into a PHP Mongo Query as so:
$topUserCat = $datas->aggregate(
array(
array('$match'=>
array(
'payload.category_ids'=>new MongoId($category_id),
'time'=>array('$gte'=>new MongoDate(strtotime('-1 week')))
)
)
),
array(
'$group'=>array(
'_id'=>'$user_id',
'num_use'=>array('$sum'=>1)
)
),
array(
'$match'=>array(
"num_use"=>array('$gte'=>10)
)
)
);
Without the last match, this query works in PHP. However the final match works in the Mongo query at the top, so I feel I have missed something in the PHP query. The error I am getting currently is exception: pipeline element 0 is not an object'
I can't tell if this is the only error -- but your array
s are not properly nested:
$topUserCat = $datas->aggregate(
array( // <------------------- starts here
array('$match'=>
...
)
), // <------------------- ends here
array(
'$group'=>
...
),
array(
'$match'=>
...
)
);
Should be:
$topUserCat = $datas->aggregate(
array( // <------------------- starts here
array('$match'=>
...
),
array(
'$group'=>
...
),
array(
'$match'=>
...
)
) // <------------------- ends here
);
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