public async Task <IActionResult> SubmitFile(IFormFile file, int assignmentId)
{
AddAssignmentFileDto dto = new AddAssignmentFileDto {
File = file, AssignmentId = assignmentId
};
ServiceResponse <string> response = await _assignmentService.SubmitAssignmentFile(dto);
if (response.Success)
{
return(Ok(response));
}
return(NotFound(response));
}
public async Task <ServiceResponse <string> > SubmitAssignmentFile(AddAssignmentFileDto file)
{
ServiceResponse <string> response = new ServiceResponse <string>();
User user = await _context.Users.Include(u => u.InstructedCourses).FirstOrDefaultAsync(u => u.Id == GetUserId());
Assignment assignment = await _context.Assignments.FirstOrDefaultAsync(a => a.Id == file.AssignmentId);
if (file.File == null || assignment == null)
{
response.Data = "No submission";
response.Message = "There is no submission under this id or you didnt provide a file to submit";
response.Success = false;
return(response);
}
Course course = await _context.Courses.FirstOrDefaultAsync(s => s.Id == assignment.AfilliatedCourseId);
if (course == null)
{
response.Data = "No submission";
response.Message = "There is no course under this id";
response.Success = false;
return(response);
}
if (course.Instructors.FirstOrDefault(c => c.UserId == user.Id) == null)
{
response.Data = "Not allowed";
response.Message = "You are not allowed to post file for this assignment";
response.Success = false;
return(response);
}
if (Path.GetExtension(file.File.FileName) != ".pdf")
{
response.Data = "Bad Request";
response.Message = "Assignments should be pdf";
response.Success = false;
return(response);
}
var target = Path.Combine(_hostingEnvironment.ContentRootPath, string.Format("{0}/{1}/{2}",
"StaticFiles/Assignments", assignment.AfilliatedCourseId, assignment.Id));
Directory.CreateDirectory(target);
if (file.File.Length <= 0)
{
response.Success = false;
}
else
{
string oldfile = Directory.GetFiles(target).FirstOrDefault();
if (File.Exists(oldfile))
{
File.Delete(oldfile);
}
var filePath = Path.Combine(target, string.Format("{0}_{1}",
course.Name.Trim().Replace(" ", "_"),
assignment.Title.Trim().Replace(" ", "_")) + ".pdf");
assignment.FilePath = filePath;
using (var stream = new FileStream(filePath, FileMode.Create))
{
await file.File.CopyToAsync(stream);
}
response.Data = target;
response.Message = "file succesfully saved.";
assignment.CreatedAt = DateTime.Now;
assignment.HasFile = true;
}
_context.Assignments.Update(assignment);
await _context.SaveChangesAsync();
return(response);
}
