Update mognodb

Src/Asp.NetCore2/SqlSugar.MongoDbCore/ExpToSql/VisitorItems/MethodCallExpressionTractor.cs

@@ -134,7 +134,30 @@ namespace SqlSugar.MongoDb
                     {
                         return ProcessAnyExpression(methodCallExpression);
                     }
-                     
+
+                }
+                else if (IsAnyMethodCallEmpty(methodCallExpression, name)) 
+                {
+                        // 处理 it.xx.Any()，即判断 JSON 数组字段是否非空
+                        var memberExpression = methodCallExpression.Arguments.FirstOrDefault() as MemberExpression;
+                        if (memberExpression != null)
+                        {
+                            // 获取集合字段名
+                            var collectionField = MongoNestedTranslator.TranslateNoFieldName(
+                                memberExpression,
+                                _context,
+                                new ExpressionVisitorContext { IsText = true }
+                            );
+
+                            // 构造 $size > 0 查询
+                            var bson = new BsonDocument
+                            {
+                                { "$expr", new BsonDocument("$gt", new BsonArray { new BsonDocument("$size", UtilMethods.GetMemberName(collectionField)), 0 }) }
+                            };
+                            result = bson;
+                        }
+                    }
+                {
                 }
                 return result;
             }
@@ -431,7 +454,11 @@ namespace SqlSugar.MongoDb
         {
             return name == "Any" && methodCallExpression.Arguments.Count == 2;
         }
-         
+        private static bool IsAnyMethodCallEmpty(MethodCallExpression methodCallExpression, string name)
+        {
+            return name == "Any" && methodCallExpression.Arguments.Count ==1;
+        }
+
         private static bool IsCountJson(MethodCallExpression methodCallExpression, string name)
         {
             return name == "Count" && methodCallExpression?.Arguments?.FirstOrDefault() is MemberExpression m;