public IActionResult AddComment(AddCommentViewModel vm)
{
var material = _service.GetMaterial(vm.MaterialId);
if (material == null)
{
ModelState.AddModelError("ERROR", "Taki materiał nie istnieje");
RedirectToAction("Material", vm.MaterialId);
}
var materialViewModel = PrepareMaterialViewModel(material);
if (!ModelState.IsValid)
{
return(View("Material", materialViewModel));
}
var commentAuthor = _userService.FindByIdentityUserId(User.FindFirstValue(ClaimTypes.NameIdentifier));
_service.AddComment(vm.NewComment, material, commentAuthor);
return(RedirectToAction("Material", new { @materialId = vm.MaterialId }));
}