public async Task PutAsync(int id, SubjectDto subjectDto, CancellationToken cancellationToken = default)
{
var subjectToUpdate =
await _dataContext.Subjects.SingleAsync(subject => subject.Id == id, cancellationToken);
subjectToUpdate.Name = subjectDto.Name;
subjectToUpdate.Description = subjectDto.Description;
await _dataContext.SaveChangesAsync(cancellationToken);
}
public async Task PostAsync(StudentDto studentDto, CancellationToken cancellationToken = default)
{
var student = new Student
{
LastName = studentDto.LastName,
FirstName = studentDto.FirstName,
MiddleName = studentDto.MiddleName,
Grades = (await Task.WhenAll(
studentDto.GradesIds.Select(async gradeId =>
await _dataContext.Grades.SingleAsync(grade => grade.Id == gradeId, cancellationToken)
)
)).ToList()
};
await _dataContext.Students.AddAsync(student, cancellationToken);
await _dataContext.SaveChangesAsync(cancellationToken);
}
public async Task PostAsync(TeacherDto teacherDto, CancellationToken cancellationToken = default)
{
var teacher = new Teacher()
{
LastName = teacherDto.LastName,
FirstName = teacherDto.FirstName,
MiddleName = teacherDto.MiddleName,
Phone = teacherDto.Phone,
Subjects = (await Task.WhenAll(
teacherDto.SubjectsIds.Select(async subjectId =>
await _dataContext.Subjects.SingleAsync(subject => subject.Id == subjectId, cancellationToken)
)
)).ToList()
};
await _dataContext.Teachers.AddAsync(teacher, cancellationToken);
await _dataContext.SaveChangesAsync(cancellationToken);
}
public async Task PostAsync(GradeDto gradeDto, CancellationToken cancellationToken = default)
{
var grade = new Grade
{
Value = gradeDto.Value,
Student = gradeDto.StudentId != null
? await _dataContext.Students.SingleAsync(student => student.Id == gradeDto.StudentId,
cancellationToken)
: null,
Subject = gradeDto.SubjectId != null
? await _dataContext.Subjects.SingleAsync(subject => subject.Id == gradeDto.SubjectId,
cancellationToken)
: null,
Teacher = gradeDto.TeacherId != null
? await _dataContext.Teachers.SingleAsync(teacher => teacher.Id == gradeDto.TeacherId,
cancellationToken)
: null
};
await _dataContext.Grades.AddAsync(grade, cancellationToken);
await _dataContext.SaveChangesAsync(cancellationToken);
}