YD/YD_XinWei.Api
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tanglong 2026-01-06 13:28:41 +08:00
parent 86ee1ef4bd
commit a425fcc1a4
1 changed files with 5 additions and 7 deletions
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Server/YD_XinWei/Services/Impl/LargeScreenService.cs
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@ -309,10 +309,10 @@ namespace YD_XinWei.Api.Services.Impl
.ToListAsync(); .ToListAsync();
// 2. 内存分组取每个学生最新一条 // 2. 内存分组取每个学生最新一条
var realTimeResults = sourceData var latestPerStudent = sourceData.OrderBy(x => x.ScoreTime).ToList();
.GroupBy(x => x.StudentNo) // 按学生分组
.Select(g => g.MaxBy(x => x.ScoreTime)) // 每组取最新一条 // 3. 映射到 DTO
.Where(x => x != null) // 避免空值 var realTimeResults = latestPerStudent
.Select(x => new ItemRealTimeResultDto .Select(x => new ItemRealTimeResultDto
{ {
StudentNo = x.StudentNo, StudentNo = x.StudentNo,
@ -320,9 +320,7 @@ namespace YD_XinWei.Api.Services.Impl
Photo = studentPhotoDict.TryGetValue(x.StudentNo, out var photo) ? photo : string.Empty, Photo = studentPhotoDict.TryGetValue(x.StudentNo, out var photo) ? photo : string.Empty,
GradeAndClassName = $"{x.GradeName}-{x.ClassName}", GradeAndClassName = $"{x.GradeName}-{x.ClassName}",
CategoryValue = x.CategoryValue, CategoryValue = x.CategoryValue,
Value = x.CategoryValue == 1 Value = x.CategoryValue == 1 ? $"{x.Height}cm/{x.Weight}kg" : $"{x.Value}{((SportsTestItemType)x.CategoryValue).GetUnit()}",
? $"{x.Height}cm/{x.Weight}kg"
: $"{x.Value}{((SportsTestItemType)x.CategoryValue).GetUnit()}",
Score = x.Score, Score = x.Score,
Rank = string.IsNullOrEmpty(x.Rank) ? "不及格" : x.Rank, Rank = string.IsNullOrEmpty(x.Rank) ? "不及格" : x.Rank,
ScoreTime = x.ScoreTime.ToString("yyyy-MM-dd HH:mm:ss") ScoreTime = x.ScoreTime.ToString("yyyy-MM-dd HH:mm:ss")