public async Task <IActionResult> EditImage(int id, [Bind("CategoryId,CategoryName,PictureFile")] CategoriesEditImageViewModel model)
{
if (id != model.CategoryId)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
await _categoriesService.UpdateFromCategoriesEditImageViewModel(model);
}
catch (DbUpdateConcurrencyException)
{
if (await CategoriesExists(model.CategoryId) == false)
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
return(View(model));
}
public async Task <CategoriesEditImageViewModel> GetCategoriesEditImageViewModelByIdAsync(int id)
{
var category = await _categoriesRepository.GetByIdAsync(id);
var model = new CategoriesEditImageViewModel()
{
CategoryId = category.CategoryId,
CategoryName = category.CategoryName,
PictureFile = new FormFile(new MemoryStream(category.Picture), 0, category.Picture.Length, category.CategoryName, "image.bmp")
};
return(model);
}
public async Task <IActionResult> Update(int id, [FromForm] CategoriesEditImageViewModel model)
{
try
{
if (id != model.CategoryId)
{
_logger.LogError("Id from Url and model doesn't match.");
return(BadRequest("Id from Url and model doesn't match."));
}
if (!ModelState.IsValid)
{
_logger.LogError("Invalid owner object sent from client.");
return(BadRequest("Invalid model object"));
}
try
{
await _categoriesService.UpdateFromCategoriesEditImageViewModel(model);
}
catch (DbUpdateConcurrencyException)
{
if (await CategoriesExists(model.CategoryId) == false)
{
return(NotFound());
}
else
{
throw;
}
}
return(NoContent());
}
catch (Exception ex)
{
_logger.LogError($"Something went wrong inside Update action: {ex.Message}");
return(StatusCode(500, "Internal server error"));
}
}
public async Task UpdateFromCategoriesEditImageViewModel(CategoriesEditImageViewModel model)
{
if (model == null || model.CategoryId == 0)
{
return;
}
var categories = await GetByIdAsync(model.CategoryId);
if (!string.IsNullOrEmpty(model.CategoryName))
{
categories.CategoryName = model.CategoryName;
}
if (model != null && model.PictureFile != null)
{
using (var memoryStream = new MemoryStream())
{
await model.PictureFile.CopyToAsync(memoryStream);
categories.Picture = memoryStream.ToArray();
}
}
await Update(categories);
}