/// <summary>
/// Updates Grade
/// </summary>
/// <param name="viewModel">Injected <see cref="UpdateGrade"/></param>
/// <returns>Instance of <see cref="Task{ViewGrade}"/></returns>
public async Task <ViewGrade> UpdateGrade(UpdateGrade @viewModel)
{
await CheckName(@viewModel);
Grade @Grade = await FindGradeById(@viewModel.Id);
@Grade.Name = @viewModel.Name;
@Grade.ImageUri = @viewModel.ImageUri;
try
{
Context.Grade.Update(@Grade);
await Context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
await CheckName(@viewModel);
}
// Log
string @logData = @Grade.GetType().Name
+ " with Id "
+ @Grade.Id
+ " was modified at "
+ DateTime.Now.ToShortTimeString();
Logger.WriteUpdateItemLog(@logData);
return(Mapper.Map <ViewGrade>(@Grade));
}
/// <summary>
/// Checks Name
/// </summary>
/// <param name="viewModel">Injected <see cref="UpdateGrade"/></param>
/// <returns>Instance of <see cref="Task{Grade}"/></returns>
public async Task <Grade> CheckName(UpdateGrade @viewModel)
{
Grade @Grade = await Context.Grade
.TagWith("CheckName")
.AsNoTracking()
.FirstOrDefaultAsync(x => x.Name == @viewModel.Name && x.Id != viewModel.Id);
if (@Grade != null)
{
// Log
string @logData = @Grade.GetType().Name
+ " with Name "
+ @Grade.Name
+ " was already found at "
+ DateTime.Now.ToShortTimeString();
Logger.WriteGetItemFoundLog(@logData);
throw new Exception(@Grade.GetType().Name
+ " with Name "
+ @viewModel.Name
+ " already exists");
}
return(Grade);
}
public void UpdateStudentGrade_SmallerThan0_Error()
{
var enrollmentId = 45;
var obj = new UpdateGrade
{
Grade = -1
};
var ex = Assert.ThrowsAsync <ArgumentException>(async() => await _enrollmentLogic.UpdateStudentGrade(enrollmentId, obj));
Assert.That(ex.Message, Is.EqualTo("Grade must be between 0 and 100"));
}
public void UpdateStudentGrade_InvalidId_Error()
{
var enrollmentId = 999;
var obj = new UpdateGrade
{
Grade = (decimal?)27.8
};
var ex = Assert.ThrowsAsync <ArgumentException>(async() => await _enrollmentLogic.UpdateStudentGrade(enrollmentId, obj));
Assert.That(ex.Message, Is.EqualTo($"There's no enrollment with enrollmentId = {enrollmentId}"));
}
public async Task UpdateStudentGrade_NullGrade_Ok()
{
var enrollmentId = 45;
var obj = new UpdateGrade
{
Grade = null
};
await _enrollmentLogic.UpdateStudentGrade(enrollmentId, obj);
var actual = await _enrollmentRepository.GetById(enrollmentId);
Assert.AreEqual(actual.Grade, obj.Grade);
}
public async Task <IActionResult> UpdateGrade(int enrollmentId, [FromBody] UpdateGrade updateGrade)
{
try
{
if (!ModelState.IsValid)
{
return(ValidationProblem("Invalid parameters"));
}
await _enrollmentLogic.UpdateStudentGrade(enrollmentId, updateGrade);
return(NoContent());
}
catch (Exception ex)
{
return(BadRequest(ex.Message));
}
}
public async Task UpdateStudentGrade(int id, UpdateGrade updateGrade)
{
if (updateGrade.Grade.HasValue && (updateGrade.Grade.Value < 0 || updateGrade.Grade.Value > 100))
{
throw new ArgumentException("Grade must be between 0 and 100");
}
if (await _enrollmentRepository.GetById(id) == null)
{
throw new ArgumentException($"There's no enrollment with enrollmentId = {id}");
}
var enrollment = new Enrollment
{
EnrollmentId = id,
Grade = updateGrade.Grade
};
await _enrollmentRepository.Update(id, enrollment);
}