public DeleteCat()
{
var db = new NorthwindContext();
Console.Clear();
Console.WriteLine("NORTHWIND Category & Products - Delete Category and related Products\n");
Console.WriteLine("Select the category you want to Delete:");
try
{
id = int.Parse(DisplayCat.DispCatSel()); // display the list of categories
Console.Clear();
Console.WriteLine("NORTHWIND Category & Products - Delete Category and related Products\n");
logger.Info($"CategoryId {id} selected");
Category category = db.Categories.FirstOrDefault(c => c.CategoryId == id);
Console.WriteLine($"You chose {category.CategoryName} - {category.Description}");
GetProductCount getProductCount = new GetProductCount(id); // display the product count first
foreach (Product p in category.Products) // products enumerated in the category bcause of the list
{
Console.WriteLine($"\t{p.ProductName}");
}
Console.WriteLine("Delete the Category and any related Products? Y or any key to bypass");
string del = Console.ReadLine();
logger.Info($"{del}");
if (del.ToUpper() == "Y")
{
var dquery = db.Products.Where(p => p.CategoryId == id);
foreach (var item in dquery)
{
db.Products.Remove(item);
db.SaveChanges();
}
var delcat = db.Categories.FirstOrDefault(c => c.CategoryId == id);
db.Categories.Remove(delcat);
db.SaveChanges();
}
}
catch
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("** No Category selected");
Console.ResetColor();
}
}
public CategoryMain()
{
do
{
var categorymenu = new CategoryMenu();
selection = char.ToLower(categorymenu.GetCatInput());
if (selection.Equals('q'))
{
break;
}
choice = selection.ToString();
logger.Info("User choice: {Choice}", choice);
if (choice == "1") // display the categories
{
DisplayCat displayCat = new DisplayCat();
}
else if (choice == "2") // Add a category
{
AddCat addCat = new AddCat();
}
else if (choice == "3") // Display the category and its products
{
DisplayCatProd displayCatProd = new DisplayCatProd();
}
else if (choice == "4")
{
DisplayAllCatProd displayAllCatProd = new DisplayAllCatProd(); // Display all categories and related products
}
else if (choice == "5")
{
EditCat editCat = new EditCat(); // Edit a category
}
else if (choice == "6")
{
DeleteCat deleteCat = new DeleteCat(); // Edit a category
}
} while (!selection.Equals('q'));
}
public DisplayCatProd()
{
var db = new NorthwindContext();
Console.Clear();
Console.WriteLine();
Console.WriteLine("NORTHWIND Category & Products - Display Category and related Products\n");
try
{
int id = int.Parse(DisplayCat.DispCatSel()); // display the list of categories
Console.Clear();
Console.WriteLine("NORTHWIND Category & Products - Display Category and related Products\n");
logger.Info($"CategoryId {id} selected");
Category category = db.Categories.FirstOrDefault(c => c.CategoryId == id);
Console.WriteLine($"You chose {category.CategoryName} - {category.Description}");
GetProductCount getProductCount = new GetProductCount(id); // display the product count first
foreach (Product p in category.Products) // products enumerated in the category bcause of the list
{
if (!p.Discontinued)
{
Console.WriteLine($"\t{p.ProductName}");
}
}
Console.Write("Press any key to continue . . . ");
Console.ReadKey(true);
}
catch
{
logger.Info("Error in Selection");
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine($"** Error - Try again");
Console.ResetColor();
Console.Write("Press any key to continue . . . ");
Console.ReadKey(true);
}
}
public EditCat()
{
var db = new NorthwindContext();
string newname;
string newdesc;
//
try
{
Console.Clear();
Console.WriteLine();
Console.WriteLine("NORTHWIND Category & Products - Edit CATEGORIES\n");
Console.WriteLine("Select the category you want to edit:");
int id = int.Parse(DisplayCat.DispCatSel()); // display the list of categories
Console.Clear();
Console.WriteLine();
Console.WriteLine("NORTHWIND Category & Products - Edit CATEGORIES\n");
logger.Info($"CategoryId {id} selected");
// get the record
Category category = db.Categories.FirstOrDefault(c => c.CategoryId == id); // get the record context - is connected to the database - have to get the context first to update it
Console.WriteLine($"You chose {category.CategoryName} - {category.Description}\n");
logger.Info($" {category.CategoryName} - {category.Description}");
Console.WriteLine("Edit Category Name? Y or press any key to bypass");
string edit = Console.ReadLine();
logger.Info($"{edit}");
if (edit.ToLower() == "y")
{
badentry = true;
do
{
Console.WriteLine("Enter a new Category name");
s = Console.ReadLine();
newname = s; // get the new name
if (CustomMethod.IsBlank(s))
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("** Must enter something");
logger.Info("blank category entered");
Console.ResetColor();
}
else
{
logger.Info($"{newname}");
badentry = false;
logger.Info("Validation passed");
category.CategoryName = newname;
break;
}
} while (badentry);
}
else
{
category.CategoryName = category.CategoryName;
}
Console.WriteLine("Edit Category Description? Y or press any key to bypass");
edit = Console.ReadLine(); // get the new description
logger.Info($"{edit}");
if (edit.ToLower() == "y")
{
badentry = true;
do
{
Console.WriteLine("Enter new Category description");
s = Console.ReadLine();
newdesc = s;
if (CustomMethod.IsBlank(s))
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("** Must enter something");
logger.Info("blank category desc entered");
Console.ResetColor();
}
else
{
badentry = false;
category.Description = newdesc;
logger.Info($"{newdesc}");
break;
}
} while (badentry);
}
else
{
category.Description = category.Description;
}
ValidationContext context = new ValidationContext(category, null, null); // what do I want to validate? = category put category in our context
List <ValidationResult> results = new List <ValidationResult>();
var isValid = Validator.TryValidateObject(category, context, results, true); // validate category and return it to results = bool
if (!isValid)
{
foreach (var result in results)
{
logger.Error($"{result.MemberNames.First()} : {result.ErrorMessage}");
Console.WriteLine($"ERROR: {result.ErrorMessage}");
Console.ResetColor();
}
}
else
{
db.SaveChanges();
}
}
catch
{
Console.ForegroundColor = ConsoleColor.Red;
logger.Error($"no selection made");
Console.WriteLine($"No Category Selected");
Console.ResetColor();
}
Console.Write("Press any key to continue . . . ");
Console.ReadKey(true);
}
