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Update mongodb

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sunkaixuan
2025-08-01 15:43:44 +08:00
parent 8b2aa9ad51
commit e33106182b
1 changed files with 42 additions and 0 deletions
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42
Src/Asp.NetCore2/SqlSugar.MongoDbCore/MongoDb/SqlBuilder/MongoDbExpressionContext.cs
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@@ -156,6 +156,48 @@ namespace SqlSugar.MongoDb
public class MongoDbMethod : DefaultDbMethod, IDbMethods
{
public MongoNestedTranslatorContext context { get; set; }
public override string Between(MethodCallExpressionModel model)
{
// 伪代码步骤：
// 1. 获取字段表达式 fieldExpr
// 2. 获取下限 lowerExpr 和上限 upperExpr
// 3. 解析字段名和边界值
// 4. 构造 MongoDB $gte 和 $lte 查询表达式
// 5. 返回 JSON 字符串
var fieldExpr =model.Args[0].MemberValue as Expression;
var lowerExpr = model.Args[1].MemberValue as Expression;
var upperExpr = model.Args[2].MemberValue as Expression;
BsonValue fieldName = new ExpressionVisitor(context).Visit(fieldExpr);
var lowerValue = ExpressionTool.DynamicInvoke(lowerExpr);
var upperValue = ExpressionTool.DynamicInvoke(upperExpr);
var betweenDoc = new BsonDocument(fieldName.ToString(), new BsonDocument
{
{ "$gte", UtilMethods.MyCreate(lowerValue) },
{ "$lte", UtilMethods.MyCreate(upperValue) }
});
return betweenDoc.ToJson(UtilMethods.GetJsonWriterSettings());
}
public override string UNIX_TIMESTAMP(MethodCallExpressionModel model)
{
// 伪代码步骤：
// 1. 获取日期字段表达式 dateExpr
// 2. 解析字段名
// 3. 构造 MongoDB $toLong 操作符
// 4. 返回 JSON 字符串
var dateExpr = model.DataObject as Expression ?? model.Args[0].MemberValue as Expression;
BsonValue fieldName = new ExpressionVisitor(context).Visit(dateExpr);
// MongoDB $toLong 可将日期转为时间戳（毫秒），需除以1000得到秒
var toLongDoc = new BsonDocument("$toLong", UtilMethods.GetMemberName(fieldName));
var unixTimestampDoc = new BsonDocument("$floor", new BsonDocument("$divide", new BsonArray { toLongDoc, 1000 }));
return unixTimestampDoc.ToJson(UtilMethods.GetJsonWriterSettings());
}
public override string ToInt32(MethodCallExpressionModel model)
{
var item =model.Args[0].MemberValue;