public async Task <IActionResult> OnGetAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
try
{
brandModel = await _context.BrandModels.Where(m => m.Id == id).FirstOrDefaultAsync();
if (brandModel == null)
{
return(NotFound());
}
ViewData["BrandList"] = new SelectList(_context.Brands, "Id", "Name");
return(Page());
}
catch (Exception ex)
{
//With this code, we save in log files what we want.
_log.LogError(ex.Message + ". ID : {0}", id);
TempData["ErrorMessage"] = ex.Message;
return(RedirectToPage("Error"));
}
}
public IActionResult OnGet()
{
ViewData["BrandList"] = new SelectList(_context.Brands, "Id", "Name");
brandModel = new Models.BrandModel();
return(Page());
}
public async Task <IActionResult> Index(Models.BrandModel model)
{
if (ModelState.IsValid)
{
//save new brand to the database
dbContext.Brands.Add(model);
await dbContext.SaveChangesAsync();
//redirect to the main view
return(RedirectToAction("Index"));
}
else
{
return(View());
}
}
public async Task <IActionResult> OnPostDeleteAsync(string deleteId)
{
int id = 0;
if (!int.TryParse(deleteId, out id))
{
throw new Exception("Wrong Id Information.");
}
try
{
Models.BrandModel brandModel = await _context.BrandModels.Where(m => m.Id == id).FirstOrDefaultAsync();
if (brandModel == null)
{
return(NotFound());
}
if (brandModel.Products != null && brandModel.Products.Count != 0)
{
throw new Exception("There are related Records with this Brand. First You have to delete them!");
}
_context.BrandModels.Remove(brandModel);
//With this code, we save the entity history.
_context.EnsureAutoHistory();
await _context.SaveChangesAsync();
//With this code, we save in log files what we want.
_log.LogInformation("Record Deleted");
return(RedirectToPage("Index", new { messageType = MessageType.Delete }));
}
catch (Exception ex)
{
//With this code, we save in log files what we want.
_log.LogError(ex.Message + ". ID : {0}", id);
TempData["ErrorMessage"] = ex.Message;
return(RedirectToPage("Error"));
}
}
