public static IList <StandardGradingViewData> Create(IList <GradingStandardInfo> gradingStandards, IList <int> studentIds) { var gradigDic = gradingStandards.GroupBy(x => x.Standard.Id).ToDictionary(x => x.Key, x => x.ToList()); var res = new List <StandardGradingViewData>(); foreach (var kv in gradigDic) { var gradingSt = kv.Value.First(); var standardGrading = new StandardGradingViewData { Standard = StandardViewData.Create(gradingSt.Standard), NumericAvg = (int?)kv.Value.Average(x => x.NumericGrade), Items = new List <StandardGradingItemViewData>() }; res.Add(standardGrading); foreach (var studentId in studentIds) { var gradingInfo = kv.Value.FirstOrDefault(x => x.StudentId == studentId); if (gradingInfo != null) { standardGrading.Items.Add(StandardGradingItemViewData.Create(gradingInfo)); } } } return(res); }
public static StandardGradingItemViewData Create(GradingStandardInfo gradingStandard) { var res = new StandardGradingItemViewData { StudentId = gradingStandard.StudentId, GradeId = gradingStandard.AlphaGradeId, GradeValue = gradingStandard.AlphaGradeName, StandardId = gradingStandard.Standard.Id, GradingPeriodId = gradingStandard.GradingPeriodId, ClassId = gradingStandard.ClassId, Comment = gradingStandard.Note }; if (string.IsNullOrEmpty(res.GradeValue) && gradingStandard.NumericGrade.HasValue) { res.GradeValue = gradingStandard.NumericGrade.Value.ToString(); } res.NumericGrade = gradingStandard.NumericGrade; return(res); }