/// <summary>
/// Обновляет электронный журнал
/// </summary>
/// <param name="elGradebook"></param>
/// <param name="userName"></param>
/// <returns></returns>
public async Task UpdateElGradebook(ElGradebook elGradebook, string userName)
{
var appUser = await GetAppUserAsync(userName);
if (appUser == null)
{
throw new Exception($"Аккаунт пользователя {userName} не найден!");
}
var entry = await GetElGradebookAsync(elGradebook.ElGradebookId);
if (entry.Course != elGradebook.Course)
{
entry.Course = elGradebook.Course;
}
if (entry.Department != elGradebook.Department)
{
entry.Department = elGradebook.Department;
}
if (entry.DisciplineName != elGradebook.DisciplineName)
{
entry.DisciplineName = elGradebook.DisciplineName;
}
if (entry.EduYear != elGradebook.EduYear)
{
entry.EduYear = elGradebook.EduYear;
}
if (entry.Faculty != elGradebook.Faculty)
{
entry.Faculty = elGradebook.Faculty;
}
if (entry.GroupName != elGradebook.GroupName)
{
entry.GroupName = elGradebook.GroupName;
}
if (entry.GroupId != elGradebook.GroupId)
{
entry.GroupId = elGradebook.GroupId;
}
if (entry.SemesterNumber != elGradebook.SemesterNumber)
{
entry.SemesterNumber = elGradebook.SemesterNumber;
}
_context.Update(entry);
await _context.SaveChangesAsync();
}
/// <summary>
/// Создаёт электронный журнал
/// </summary>
/// <param name="elGradebook"></param>
/// <param name="userName"></param>
/// <returns></returns>
public async Task CreateElGradebook(ElGradebook elGradebook, string userName)
{
var appUser = await GetAppUserAsync(userName);
if (appUser == null)
{
throw new Exception($"Аккаунт пользователя {userName} не найден!");
}
var elGradebookTeacher = new ElGradebookTeacher {
UserId = appUser.Id, TeacherFio = appUser.GetFullName
};
elGradebook.ElGradebookTeachers = new List <ElGradebookTeacher>();
elGradebook.ElGradebookTeachers.Add(elGradebookTeacher);
_context.Add(elGradebook);
await _context.SaveChangesAsync();
}
/// <summary>
/// Возвращает true, если userName входит в число преподавателей, закреплённых за электронным журналом
/// </summary>
/// <param name="elGradebook"></param>
/// <param name="userName"></param>
/// <returns></returns>
public async Task <bool> IsGradebookTeacherAsync(ElGradebook elGradebook, string userName)
{
bool isGradebookTeacher = false;
var appUserId = (await GetAppUserAsync(userName)).Id;
if (string.IsNullOrEmpty(appUserId))
{
return(false);
}
foreach (var elGradebookTeacher in elGradebook.ElGradebookTeachers)
{
if (elGradebookTeacher.UserId == appUserId)
{
isGradebookTeacher = true;
break;
}
}
return(isGradebookTeacher);
}
