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Update mongodb

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sunkaixuan
2025-06-21 09:22:27 +08:00
parent 019de80cf8
commit d51a833dc4
1 changed files with 91 additions and 1 deletions
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92
Src/Asp.NetCore2/SqlSugar.MongoDbCore/MongoDb/SqlBuilder/MongoDbExpressionContext.cs
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@@ -500,8 +500,98 @@ namespace SqlSugar.MongoDb
var toLowerDoc = new BsonDocument("$toLower", $"${memberName}");
return toLowerDoc.ToJson(UtilMethods.GetJsonWriterSettings());
}
public override string Abs(MethodCallExpressionModel model)
{
// 取绝对值，MongoDB $abs 操作符
var item = model.Args[0].MemberValue;
BsonValue memberName = new ExpressionVisitor(context).Visit(item as Expression);
var absDoc = new BsonDocument("$abs", $"${memberName}");
return absDoc.ToJson(UtilMethods.GetJsonWriterSettings());
}
#region
public override string Round(MethodCallExpressionModel model)
{
// 四舍五入，MongoDB $round 操作符
var item = model.Args[0].MemberValue;
BsonValue memberName = new ExpressionVisitor(context).Visit(item as Expression);
var roundDoc = new BsonDocument("$round", new BsonArray { $"${memberName}" });
return roundDoc.ToJson(UtilMethods.GetJsonWriterSettings());
}
public override string Floor(MethodCallExpressionModel model)
{
// 向下取整，MongoDB $floor 操作符
var item = model.Args[0].MemberValue;
BsonValue memberName = new ExpressionVisitor(context).Visit(item as Expression);
var floorDoc = new BsonDocument("$floor", $"${memberName}");
return floorDoc.ToJson(UtilMethods.GetJsonWriterSettings());
}
public override string Substring(MethodCallExpressionModel model)
{
// 截取字符串，MongoDB $substr 操作符（推荐 $substrBytes）
var item = model.DataObject as Expression;
var start = model.Args[0].MemberValue;
var length = model.Args[1].MemberValue;
BsonValue memberName = new ExpressionVisitor(context).Visit(item);
BsonValue startValue = new ExpressionVisitor(context).Visit(start as Expression);
BsonValue lengthValue = new ExpressionVisitor(context).Visit(length as Expression);
var substrDoc = new BsonDocument("$substrBytes", new BsonArray { $"${memberName}", startValue, lengthValue });
return substrDoc.ToJson(UtilMethods.GetJsonWriterSettings());
}
public override string Replace(MethodCallExpressionModel model)
{
// 替换字符串，MongoDB $replaceAll 操作符
var item = model.DataObject as Expression;
var find = model.Args[0].MemberValue;
var replacement = model.Args[1].MemberValue;
BsonValue memberName = new ExpressionVisitor(context).Visit(item);
BsonValue findValue = new ExpressionVisitor(context).Visit(find as Expression);
BsonValue replacementValue = new ExpressionVisitor(context).Visit(replacement as Expression);
var replaceDoc = new BsonDocument("$replaceAll", new BsonDocument
{
{ "input", $"${memberName}" },
{ "find", findValue },
{ "replacement", replacementValue }
});
return replaceDoc.ToJson(UtilMethods.GetJsonWriterSettings());
}
public override string Length(MethodCallExpressionModel model)
{
// 字符串长度，MongoDB $strLenBytes 操作符
var item = model.Args[0].MemberValue ?? model.DataObject;
BsonValue memberName = new ExpressionVisitor(context).Visit(item as Expression);
var lengthDoc = new BsonDocument("$strLenBytes", $"${memberName}");
return lengthDoc.ToJson(UtilMethods.GetJsonWriterSettings());
}
public override string IsNullOrEmpty(MethodCallExpressionModel model)
{
// 判断字符串是否为 null 或空字符串
var item = model.Args[0].MemberValue ?? model.DataObject;
BsonValue memberName = new ExpressionVisitor(context).Visit(item as Expression);
// $or: [ { $eq: [ "$field", null ] }, { $eq: [ "$field", "" ] } ]
var orDoc = new BsonDocument("$or", new BsonArray
{
new BsonDocument("$eq", new BsonArray { $"${memberName}", BsonNull.Value }),
new BsonDocument("$eq", new BsonArray { $"${memberName}", "" })
});
return orDoc.ToJson(UtilMethods.GetJsonWriterSettings());
}
public override string Trim(MethodCallExpressionModel model)
{
// 去除首尾空格，MongoDB $trim 操作符
var item = model.Args[0].MemberValue ?? model.DataObject;
BsonValue memberName = new ExpressionVisitor(context).Visit(item as Expression);
var trimDoc = new BsonDocument("$trim", new BsonDocument { { "input", $"${memberName}" } });
return trimDoc.ToJson(UtilMethods.GetJsonWriterSettings());
}
#region Helper
// Existing methods...