public static void GetDBlist()
{
menu DbMenu = new menu();
bool Dbexist = false;
var DbList = DataWriter.GetDBlist();
if (DbList != null)
{
if (DbList.Count > 0)
{
Dbexist = true;
foreach (string _base in DataWriter.GetDBlist())
{
DbMenu.add_menu_item(new MenuItem(_base, new MenuItem.ActionObject(ActionObject => BaseMenu(_base))));
}
DbMenu.add_menu_item(new MenuItem("Создать новую базу", new MenuItem.ActionObject(ActionObject => BaseMenu(CurrentDB = DataWriter.CreateDB(Console.ReadLine())))));
DbMenu.add_menu_item(new MenuItem("Выход", new MenuItem.Action(MenuController.ReturnToPrevMenu)));
MenuController.Add(DbMenu);
DbMenu.Draw();
}
}
if (!Dbexist)
{
Console.WriteLine("No databases found \n To create base press any key...");
Console.ReadKey();
Console.Clear();
Console.Write("Enter DB name:");
DataWriter.CreateDB(CurrentDB = Console.ReadLine());
BaseMenu(CurrentDB);
}
}
public static void GetTableList(string dbName)
{
int i = 0;
menu tablesMenu = new menu();
List <DataTable> tables = DataWriter.GetTableList(CurrentDB);
if (tables.Count < 1 || tables is null)
{
Console.WriteLine($"No tables in {CurrentDB} \n Create new one?(y/n)");
string ans = Console.ReadLine();
if (ans == "y")
{
CreateTable(CurrentDB);
}
else
{
GetDBlist();
};
}
foreach (DataTable table in tables)
{
MenuItem menuItem = new MenuItem(table.TableName, new MenuItem.ActionObject(ActionObject => TableMenuAction(table)));
tablesMenu.add_menu_item(menuItem);
i++;
}
MenuItem back = new MenuItem("Back", new MenuItem.Action(MenuController.ReturnToPrevMenu));
tablesMenu.add_menu_item(back);
MenuController.Add(tablesMenu);
tablesMenu.Draw();
}
private static void TableMenuAction(DataTable TblName)
{
menu TbaleActionMenu = new menu();
MenuItem Insert = new MenuItem($"Вставить запись в {TblName.TableName}", new MenuItem.ActionObject(ActionObject => TableActionInsert(TblName)));
MenuItem back = new MenuItem("Back", new MenuItem.Action(MenuController.ReturnToPrevMenu));
TbaleActionMenu.add_menu_item(Insert);
TbaleActionMenu.add_menu_item(back);
MenuController.Add(TbaleActionMenu);
TbaleActionMenu.Draw();
}
public void ReturnToPrevMenu()
{
menu _out = new menu();
current_menu--;
menus.TryGetValue(current_menu, out _out);
if (_out is null)
{
System.Environment.Exit(1);
}
_out.Draw();
}
public static void BaseMenu(string BD)
{
CurrentDB = BD;
menu MainMenu = new menu();
MenuItem tblList = new MenuItem("Список таблиц", new MenuItem.ActionObject(ActionObject => GetTableList(CurrentDB)));
MenuItem CrtTbl = new MenuItem("Создать таблицу", new MenuItem.ActionObject(ActionObject => CreateTable(CurrentDB)));
MenuItem Exit = new MenuItem("Назад", new MenuItem.Action(MenuController.ReturnToPrevMenu));
MainMenu.add_menu_item(CrtTbl);
MainMenu.add_menu_item(tblList);
MainMenu.add_menu_item(Exit);
MenuController.Add(MainMenu);
MainMenu.Draw($"Текущая база -> {BD}");
}
public void Add(menu menu)
{
menus.Add(count, menu);
count++;
current_menu++;
}
public static void CreateTable(string DbName)
{
Console.Clear();
string TableName = "", ColumnName = "";
List <string> Columns = new List <string>();
DataTable NewDT = new DataTable();
menu CreateTable = new menu();
menu SetIdentity = new menu();
MenuItem Yes = new MenuItem("Да", new MenuItem.ActionObject(ActionObject => DataWriter.NewTable(NewDT, DbName)));
MenuItem No = new MenuItem("Нет", new MenuItem.ActionObject(ActionObject => BaseMenu(CurrentDB)));
CreateTable.add_menu_item(Yes);
CreateTable.add_menu_item(No);
Console.Write("Введите название таблицы:");
while (TableName is null || TableName.Length < 1)
{
TableName = Console.ReadLine();
TableName = TableName.Replace(" ", "_");
}
NewDT.TableName = TableName;
Console.WriteLine("Введите название столбцов( Введите '-' для завершения):");
while (ColumnName is null || ColumnName.Length < 1 || ColumnName != "-")
{
ColumnName = Console.ReadLine();
if (!string.IsNullOrWhiteSpace(ColumnName) && !string.IsNullOrEmpty(ColumnName) && !Columns.Contains(ColumnName))
{
ColumnName = ColumnName.Replace(" ", "_");
Columns.Add(ColumnName);
}
}
Columns.Remove("-");
if (Columns.Count == 0)
{
MenuController.ReturnToPrevMenu();
}
foreach (string colName in Columns)
{
NewDT.Columns.Add(colName);
MenuItem item = new MenuItem(colName, new MenuItem.ActionObject(ActionObject => NewDT = setIdentity(colName, NewDT)));
SetIdentity.add_menu_item(item);
}
if (DataWriter.GetTableList(CurrentDB).Exists(x => x.TableName == NewDT.TableName))
{
menu tblExist = new menu();
MenuItem Y = new MenuItem("Да", new MenuItem.ActionObject(ActionObject => Program.CreateTable(CurrentDB)));
MenuItem N = new MenuItem("Нет", new MenuItem.Action(MenuController.ReturnToPrevMenu));
tblExist.add_menu_item(Y);
tblExist.add_menu_item(N);
tblExist.Draw("Таблица с таким названием уже существует. Повторить ввод?");
}
SetIdentity.Draw("Необходимо установить первичный ключ");
CreateTable.Draw($"Создать таблицу {NewDT.TableName}?");
MenuController.ReturnToPrevMenu();
}
