Enfin , j'ai dû utiliser l' agrégation ici , il n'y a pas d' autre option .
Les schémas n'ont pas besoin de changer
var results =await dbo.collection('mediators').aggregate([
{ $lookup:
{
from: 'venues',
localField: 'venue',
foreignField: '_id',
as: 'venue'
}
},
$match:{$and:[{"venue.venue_type":req.query.venue_type} , {"venue.capacity":{$gte:parseInt(req.query.capacitylb) , $lte:parseInt(req.query.capacityub)}}]}
},{
$lookup:
{
from: 'users',
localField: 'user',
foreignField: '_id',
as: 'user'
}
},{
$lookup:
{
from: 'professionals',
localField: 'professional',
foreignField: '_id',
as: 'professional'
}
},{
$lookup:
{
from:'availabilities',
localField: 'availability',
foreignField: '_id',
as: 'availability'
}
},{
$unwind: '$availability'
},{
$match:{$and:[{"availability.start":{$lte:new Date(req.query.dateFrom)}},{"availability.end":{$gte:new Date(req.query.dateTo)}}]}
},{
$lookup:
{
from:'locations',
localField: 'location',
foreignField: '_id',
as: 'location'
}
},{
$project:{
"_id":1,
"email":"$user.email",
"organization_name":"$user.organization_name",
"website":"$user.website",
"profile_pic_hash":"$user.profile_pic_hash",
"bio_hash":"$user.bio_hash",
"venue_type":"$venue.venue_type",
"capacity":"$venue.capacity",
"flat_fee":"$professional.flat_fee",
"per_participant_fee":"$professional.per_participant_fee",
"hourly_fee":"$professional.hourly_fee",
"start_date":"$availability.start",
"end_date":"$availability.end",
"distance":"$dist.calculated",
"location":"$location.location.coordinates",
"country":"$location.country",
"city":"$location.city",
"street":"$location.street",
"number":"$location.number",
"zip":"$location.zip"}}
Cela a fonctionné parfaitement pour moi. Merci Anthony Winzlet Pour votre aide.