/// <inheritdoc />
/// <summary>
/// Delete a gradebook column and the associated scores.
/// </summary>
protected override async Task <ActionResult> OnDeleteLineItemAsync(DeleteLineItemRequest request)
{
if (!int.TryParse(request.ContextId, out var contextId))
{
var name = $"{nameof(request)}.{nameof(request.ContextId)}";
ModelState.AddModelError(name, $"The {name} field cannot be converted into a course id.");
}
if (!int.TryParse(request.LineItemId, out var lineItemId))
{
var name = $"{nameof(request)}.{nameof(request.LineItemId)}";
ModelState.AddModelError(name, $"The {name} field cannot be converted into a gradebook column id.");
}
if (!ModelState.IsValid)
{
return(BadRequest(new ValidationProblemDetails(ModelState)));
}
if (!await _courseValidator.UserHasAccess(contextId))
{
return(Unauthorized(new ProblemDetails
{
Title = "Not authorized",
Detail = "User not authorized to access the requested course."
}));
}
var course = await _context.GetCourseAsync(contextId);
if (course == null)
{
return(NotFound(new ProblemDetails
{
Title = ReasonPhrases.GetReasonPhrase(StatusCodes.Status404NotFound),
Detail = "Course not found"
}));
}
if (course.GradebookColumns.Any(c => c.Id == lineItemId))
{
var gradebookColumn = await _context.GetGradebookColumnAsync(lineItemId);
_context.GradebookColumns.Remove(gradebookColumn);
await _context.SaveChangesAsync();
return(NoContent());
}
return(NotFound(new ProblemDetails
{
Title = ReasonPhrases.GetReasonPhrase(StatusCodes.Status404NotFound),
Detail = "Gradebook column not found"
}));
}
protected override Task <ActionResult> OnDeleteLineItemAsync(DeleteLineItemRequest request)
{
var result = (ActionResult)Ok();
return(Task.FromResult(result));
}
