public async Task AddQuantityToItem(AddQuantityToProductBindingModel input)
{
var product = await this.context.Products.FirstOrDefaultAsync(p => p.Id == input.Id);
product.Quantity += input.Quantity;
await context.SaveChangesAsync();
}
public async Task <IActionResult> ProductSingleOrder(AddQuantityToProductBindingModel input)
{
if (!this.ModelState.IsValid)
{
return(await this.ProductSingleOrder());
}
await this.productService.AddQuantityToItem(input);
return(this.Redirect("/Admin/ProductOrder"));
}