public async Task <IActionResult> Create([Bind("Id,Name,Budget,Engine")] ComputerGames computerGames)
{
ComputerGames existingGame = await _context.ComputerGames.FirstOrDefaultAsync(
g => g.Name == computerGames.Name);
if (existingGame != null)
{
ModelState.AddModelError(string.Empty, "This game already exists.");
}
else if (ModelState.IsValid)
{
_context.Add(computerGames);
await _context.SaveChangesAsync();
return(RedirectToAction(nameof(Index)));
}
return(View(computerGames));
}
public async Task <IActionResult> Edit(int id, [Bind("Id,Name,Budget,Engine")] ComputerGames computerGames)
{
if (id != computerGames.Id)
{
return(NotFound());
}
ComputerGames existingGame = await _context.ComputerGames.FirstOrDefaultAsync(
g => g.Name == computerGames.Name);
if (existingGame != null)
{
ModelState.AddModelError(string.Empty, "This game already exists.");
}
else if (ModelState.IsValid)
{
try
{
_context.Update(computerGames);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!ComputerGamesExists(computerGames.Id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
return(View(computerGames));
}
public static void Main()
{
const int SIZE = 1000;
game[] g = new game[SIZE];
const string ADD = "1";
const string SHOW_GAME = "2";
const string SHOW_ALL = "3";
const string SEARCH = "4";
const string MODIFY = "5";
const string DELETE = "6";
const string SORT = "7";
const string TRIM = "8";
const string EXIT = "Q";
string option;
int currentGame = 0;
if (File.Exists("games.dat"))
{
g = ComputerGames.Load("games.dat");
for (int i = 0; i < g.Length; i++)
{
if (g[i].title != null)
{
currentGame = i + 1;
break;
}
}
}
do
{
Console.WriteLine("Choose an option:");
Console.WriteLine("1 - Add a new game");
Console.WriteLine("2 - Show all the data of a certain game");
Console.WriteLine("3 - Show all the games of a certain platform and category");
Console.WriteLine("4 - Find games containing a certain text");
Console.WriteLine("5 - Update a record");
Console.WriteLine("6 - Delete a record");
Console.WriteLine("7 - Sort data alphabetically");
Console.WriteLine("8 - Eliminate redundant spaces");
Console.WriteLine("Q - Quit the application");
Console.WriteLine();
option = Console.ReadLine();
Console.WriteLine();
switch (option)
{
case ADD:
if (currentGame >= SIZE)
{
Console.WriteLine("Database full");
}
else
{
Console.WriteLine("Game #" + (currentGame + 1));
do
{
Console.Write("Enter the title: ");
g[currentGame].title = Console.ReadLine();
} while (g[currentGame].title == "");
do
{
Console.Write("Enter the category: ");
g[currentGame].category = Console.ReadLine();
} while (g[currentGame].category == "");
Console.Write("Enter the platform: ");
g[currentGame].platform = Console.ReadLine();
do
{
Console.Write("Enter the year: ");
g[currentGame].year = Convert.ToInt32(
Console.ReadLine());
} while (g[currentGame].year < 1940 ||
g[currentGame].year > 2100);
do
{
Console.Write("Enter the rating: ");
g[currentGame].rating = Convert.ToDouble(
Console.ReadLine());
} while (g[currentGame].rating < 0 ||
g[currentGame].rating > 10);
Console.WriteLine("Enter comments:");
g[currentGame].comments = Console.ReadLine();
currentGame++;
}
Console.WriteLine();
break;
case SHOW_GAME:
int showPosition = -1;
Console.WriteLine("Choose an option:");
Console.WriteLine("1- Search by number");
Console.WriteLine("2- Search by title");
int showOption = Convert.ToInt32(Console.ReadLine());
if (showOption == 1)
{
Console.Write("Enter the number: ");
showPosition = Convert.ToInt32(Console.ReadLine()) - 1;
}
else if (showOption == 2)
{
Console.Write("Enter the title: ");
string showTitle = Console.ReadLine().ToLower();
for (int i = 0; i < currentGame; i++)
{
if (g[i].title.ToLower() == showTitle)
{
showPosition = i;
}
}
}
else
{
Console.WriteLine("Wrong option");
}
if (showPosition != -1)
{
if (showPosition >= currentGame)
{
Console.WriteLine("Wrong number");
}
else
{
Console.WriteLine("Game #" + (currentGame + 1));
Console.WriteLine("Title: " + g[currentGame].title);
Console.WriteLine("Category: "
+ g[currentGame].category);
Console.WriteLine("Platform: "
+ g[currentGame].platform);
Console.WriteLine("Year: " + g[currentGame].year);
Console.WriteLine("Rating: "
+ g[currentGame].rating);
Console.WriteLine("Comments: "
+ g[currentGame].comments);
Console.WriteLine();
}
}
Console.WriteLine();
break;
case SHOW_ALL:
int showCount = 0;
Console.Write("Enter platform: ");
string showPlatform = Console.ReadLine().ToLower();
Console.Write("Enter category: ");
string showCategory = Console.ReadLine().ToLower();
for (int i = 0; i < currentGame; i++)
{
if (g[i].platform.ToLower() == showPlatform &&
g[i].category.ToLower() == showCategory)
{
showCount++;
Console.WriteLine("Game #" + (i + 1));
Console.WriteLine("Title: " + g[i].title);
Console.WriteLine("Year: " + g[i].year);
Console.WriteLine("Rating: " + g[i].rating);
if (showCount % 23 == 22)
{
Console.ReadLine();
}
}
}
Console.WriteLine();
break;
case SEARCH:
int searchCount = 0;
Console.Write("Text to search: ");
string search = Console.ReadLine().ToLower();
for (int i = 0; i < currentGame; i++)
{
if (
g[i].title.ToLower().Contains(search) ||
g[i].category.ToLower().Contains(search) ||
g[i].platform.ToLower().Contains(search) ||
g[i].year.ToString().Contains(search) ||
g[i].rating.ToString().Contains(search) ||
g[i].comments.ToLower().Contains(search))
{
searchCount++;
Console.WriteLine("Game #" + (i + 1));
Console.WriteLine("Title: " + g[i].title);
Console.WriteLine("Year: " + g[i].year);
Console.WriteLine("Rating: " + g[i].rating);
if (searchCount % 23 == 22)
{
Console.ReadLine();
}
}
}
Console.WriteLine();
break;
case MODIFY:
Console.Write("Enter number to modify: ");
int modify = Convert.ToInt32(Console.ReadLine()) - 1;
if (modify >= currentGame)
{
Console.WriteLine("Wrong number");
}
else
{
string modifyAux;
Console.WriteLine("Game #" + (modify + 1));
Console.WriteLine("Title: " + g[modify].title);
Console.Write("New title: ");
modifyAux = Console.ReadLine();
if (modifyAux != "")
{
g[modify].title = modifyAux;
}
Console.WriteLine("Category: " + g[modify].category);
Console.Write("New category: ");
modifyAux = Console.ReadLine();
if (modifyAux != "")
{
g[modify].category = modifyAux;
}
Console.WriteLine("Platform: " + g[modify].platform);
Console.Write("New platform: ");
modifyAux = Console.ReadLine();
if (modifyAux != "")
{
g[modify].platform = modifyAux;
}
Console.WriteLine("Year: " + g[modify].year);
Console.Write("New year: ");
modifyAux = Console.ReadLine();
if (modifyAux != "")
{
try
{
if (Convert.ToInt32(modifyAux) >= 1940 &&
Convert.ToInt32(modifyAux) <= 2100)
{
g[modify].year = Convert.ToInt32(modifyAux);
}
else
{
Console.WriteLine("Wrong year");
}
}
catch (Exception)
{
Console.WriteLine("Wrong year");
}
}
Console.WriteLine("Rating: " + g[modify].rating);
Console.Write("New rating: ");
modifyAux = Console.ReadLine();
if (modifyAux != "")
{
try
{
if (Convert.ToDouble(modifyAux) >= 0 &&
Convert.ToDouble(modifyAux) <= 10)
{
g[modify].rating =
Convert.ToDouble(modifyAux);
}
else
{
Console.WriteLine("Wrong year");
}
}
catch (Exception)
{
Console.WriteLine("Wrong year");
}
}
Console.WriteLine("Comments: " + g[modify].comments);
Console.Write("New comments: ");
modifyAux = Console.ReadLine();
if (modifyAux != "")
{
g[modify].comments = modifyAux;
}
}
Console.WriteLine();
break;
case DELETE:
Console.Write("Enter the number to delete: ");
int delete = Convert.ToInt32(Console.ReadLine()) - 1;
if (delete >= currentGame)
{
Console.WriteLine("Wrong number");
}
else
{
Console.WriteLine("Game #" + (delete + 1));
Console.WriteLine("Title: " + g[delete].title);
Console.WriteLine("Category: " + g[delete].category);
Console.WriteLine("Platform: " + g[delete].platform);
Console.WriteLine("Year: " + g[delete].year);
Console.WriteLine("Rating: " + g[delete].rating);
Console.WriteLine("Comments: " + g[delete].comments);
Console.WriteLine();
Console.WriteLine("Are you sure?(y/n): ");
string confirmation = Console.ReadLine().ToLower();
if (confirmation == "y")
{
for (int i = delete; i < currentGame; i++)
{
g[i] = g[i + 1];
}
currentGame--;
}
}
Console.WriteLine();
break;
case SORT:
for (int i = 0; i < currentGame - 1; i++)
{
for (int j = i + 1; j < currentGame; j++)
{
if (g[i].title.CompareTo(g[j].title) > 0)
{
game aux = g[i];
g[i] = g[j];
g[j] = aux;
}
else if (g[i].title == g[j].title)
{
if (g[i].platform.CompareTo(g[j].platform) > 0)
{
game aux = g[i];
g[i] = g[j];
g[j] = aux;
}
}
}
}
Console.WriteLine();
break;
case TRIM:
for (int i = 0; i < currentGame; i++)
{
g[i].title = g[i].title.Trim();
while (g[i].title.Contains(" "))
{
g[i].title = g[i].title.Replace(" ", " ");
}
g[i].category = g[i].category.Trim();
while (g[i].category.Contains(" "))
{
g[i].category = g[i].category.Replace(" ", " ");
}
g[i].platform = g[i].platform.Trim();
while (g[i].platform.Contains(" "))
{
g[i].platform = g[i].platform.Replace(" ", " ");
}
}
Console.WriteLine();
break;
case EXIT:
Console.WriteLine("Bye!");
Console.WriteLine();
break;
default:
Console.WriteLine("Wrong option");
Console.WriteLine();
break;
}
} while (option != "Q");
ComputerGames.Save("games.dat", g);
}
