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Update mongodb

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sunkaixuan 2025-05-02 15:28:52 +08:00
parent 5d6dc94b50
commit 4f2d7550fc
1 changed files with 1 additions and 5 deletions
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Src/Asp.NetCore2/MongoDb.Ado.data/ExecuteScalarItems/ExecuteScalarHandler.cs
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@ -12,12 +12,8 @@ namespace MongoDb.Ado.data
public object Handle(IMongoCollection<BsonDocument> collection, string json) public object Handle(IMongoCollection<BsonDocument> collection, string json)
{ {
var filter = string.IsNullOrWhiteSpace(json) ? FilterDefinition<BsonDocument>.Empty : BsonDocument.Parse(json); var filter = string.IsNullOrWhiteSpace(json) ? FilterDefinition<BsonDocument>.Empty : BsonDocument.Parse(json);
// 设置投影排除 "_id" 字段，确保返回的结果不包含 _id 字段
var projection = Builders<BsonDocument>.Projection.Exclude("_id");
// 执行查询并限制返回一条记录 // 执行查询并限制返回一条记录
var document = collection.Find(filter).Project(projection).FirstOrDefault(); var document = collection.Find(filter).FirstOrDefault();
// 如果查询到结果且文档非空，则获取第一个字段的值 // 如果查询到结果且文档非空，则获取第一个字段的值
if (document != null && document.Elements.Any()) if (document != null && document.Elements.Any())