private void Register(StudentLessonEntity model)
{
model.IsRegistered = true;
model.RegistrationTime = DateTime.Now;
this.LessonStudents.Remove(model);
this.RegisteredStudents.Add(model);
_db.ThrottleSave();
}
public StudentLessonViewModel(
StudentEntity student,
Dictionary <string, LessonEntity> lessonModels,
IExportLocatorScope serviceLocator,
IPageHost host,
LocalDbContext context
)
{
OpenStudentHandler = ReactiveCommand.Create(OpenStudent);
OpenImageHandler = ReactiveCommand.Create(LoadImage);
this.Model = student;
ServiceLocator = serviceLocator;
this.FullName = student.LastName + " " + student.FirstName;
foreach (var keyValuePair in lessonModels)
{
var studentLessonModel =
keyValuePair.Value.StudentLessons?.FirstOrDefault(model => model._StudentId == student.Id) ??
new StudentLessonEntity {
_LessonId = keyValuePair.Value.Id,
Lesson = keyValuePair.Value,
Student = student,
_StudentId = student.Id,
IsRegistered = false,
Mark = ""
};
if (studentLessonModel.Id == 0)
{
context.StudentLessons.Add(studentLessonModel);
context.ThrottleSave();
}
this.LessonToLessonMark.Add(keyValuePair.Key,
new StudentLessonMarkViewModel(studentLessonModel, context, host));
}
this.MissedLessons =
this.LessonToLessonMark.Values.Aggregate(0,
(i, model) => model.StudentLesson.IsLessonMissed ? i + 1 : i);
}