Im facing a litle problem in Deserializing BsonDocuments type, I couldn't find the reason, but I have some clues, maybe, it's about {0 fields}, because the error tel me about the column I have {0 fields}. I also realised that its a {} (empty array).
MY MONGO QUERY ON ROBO 3T AND THE RESULT
MY C# MONGO QUERY
var connString = "mongodb+srv";
var client = new MongoClient(connString);
var database = client.GetDatabase("Base");
var collection = database.GetCollection("collection");
var match1 = new BsonDocument("$match", new BsonDocument("PartnerId", "2021"));
var match2 = new BsonDocument("$match", new BsonDocument("CD_CLIENTE", codCond));
var project = new BsonDocument { { "$project", new BsonDocument { { "_id", 0 }, { "CD_CLIENTE", 1 }, { "CD_ACESSO", 1 },
{ "ID_ACESSO", 1 },{ "NOME", 1 },{ "NU_TELEFONE", 1 }, { "EMAIL", 1 }, { "NU_KIPER_RF", 1 }, { "NU_KIPER_TAG", 1 },
{ "FG_KIPER_MOBILE", 1 },{ "KEY_HASH", 1 },}}}; MY MONGO AND RESULT
var sort = new BsonDocument("$sort", new BsonDocument("NOME", 1));
var pipeline = new[] { match1, match2, project, sort };
var result = collection.Aggregate(pipeline).ToList();
var lista = JsonConvert.DeserializeObject>(result.ToJson());
The error is here:
var lista = JsonConvert.DeserializeObject>(result.ToJson());
Exatly when I try to Deserialise an that "empty array" to Model int?. I found a work around, because I just need to know if, we have or dont not something in NU_KIPER_TAG and NU_KIPER_RF, so, I did this new Mongo query. NEW MONGO QUERY USING $COND
db.dbACESSO.aggregate([
{
$match: { PartnerId: "2021", CD_CLIENTE: 4003}
},
{
$project: {_id:0, CD_CLIENTE:1, CD_ACESSO:1, ID_ACESSO:1, NOME:1, NU_TELEFONE:1,EMAIL:1, FG_KIPER_MOBILE:1,
TAG:{$cond: [{ $eq: [ "$NU_KIPER_TAG", {}]}, 0, 1 ]}, CONTROLE:{$cond: [{ $eq: [ "$NU_KIPER_RF", {}]}, 0, 1 ]},
APPATIVO:{$cond: [{ $eq: [ "$KEY_HASH", {}]}, "", "$KEY_HASH" ]}}
}
])
I couldnt translate it to C#, I tried hard, but i'm not familiarized with the sintaxe. I also googled for a sample with no success.
I think its something like:
var project = new BsonDocument {
{
"$project", new BsonDocument { { "_id", 0 }, { "CD_CLIENTE", 1 }, { "CD_ACESSO", 1 },{ "ID_ACESSO", 1 },{ "NOME", 1 }
,{ "NU_TELEFONE", 1 }, { "EMAIL", 1 }, { "NU_KIPER_RF", 1 }, { "NU_KIPER_TAG", 1 },{ "FG_KIPER_MOBILE", 1 },{ "KEY_HASH", 1 },
{"TAG", new BsonDocument{{"$cond", new BsonDocument {{ "$eq", "$NU_KIPER_TAG", "{}"}}, 0, 1 ]}, } }
}
}
};
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