/// <summary>
/// Admin-Method, adds user.
/// </summary>
/// <returns>
/// True if user is added, else false.
/// </returns>
public bool AddUser(int adminID, string name, string password)
{
var hm = new HelperMethods();
using (var db = new WScontext())
{
var user = db.Users.
FirstOrDefault(
u => u.Name == name
);
if (user == null && hm.AdminCheck(adminID))
{
user = new Users
{
Name = name,
Password = password,
};
db.Users.Add(user);
db.SaveChanges();
return(true);
}
return(false);
}
}
/// <summary>
/// Admin-Method, adds book to category.
/// </summary>
/// <returns>
/// True if book is added, else false.
/// </returns>
public bool AddBookToCategory(int adminID, int bookID, int categoryID)
{
using (var db = new WScontext())
{
var hm = new HelperMethods();
var book = db.Books.
FirstOrDefault(
b => b.Id == bookID
);
var category = db.BookCategories.
FirstOrDefault(
c => c.Id == categoryID
);
if (category != null && book != null && hm.AdminCheck(adminID))
{
book.Category = category;
db.Books.Update(book);
db.SaveChanges();
return(true);
}
return(false);
}
}
/// <summary>
/// Admin-Method, update book information.
/// </summary>
/// <returns>
/// True if book is updated, else false.
/// </returns>
public bool UpdateBook(int adminID, int bookID, string title, string author, int price)
{
using (var db = new WScontext())
{
var hm = new HelperMethods();
var book = db.Books.
FirstOrDefault(
b => b.Id == bookID
);
if (book != null && hm.AdminCheck(adminID))
{
book.Title = title;
book.Author = author;
book.Price = price;
db.Books.Update(book);
db.SaveChanges();
return(true);
}
return(false);
}
}
/// <summary>
/// Admin-Method, list of users where users name contains keyword.
/// </summary>
public void FindUser(int adminID, string keyword)
{
var hm = new HelperMethods();
using (var db = new WScontext())
{
var users = db.Users.
Where(
u => u.Name.Contains(keyword)).ToArray(
);
if (users != null && hm.AdminCheck(adminID))
{
foreach (var user in users)
{
if (user.IsAdmin == false)
{
Console.WriteLine($"{user.Id}. {user.Name}");
}
else
{
Console.WriteLine($"{user.Id}. {user.Name} (Admin)");
}
}
}
}
}
/// <summary>
/// Admin-Method, adds book.
/// </summary>
/// <returns>
/// True if book is added, else false.
/// </returns>
public bool AddBook(int adminID, string title, string author, int price, int amount)
{
using (var db = new WScontext())
{
var hm = new HelperMethods();
var book = db.Books.
FirstOrDefault(
b => b.Title == title
);
if (book == null && hm.AdminCheck(adminID) == true)
{
book = new Books
{
Title = title,
Author = author,
Amount = amount,
Price = price
};
db.Books.Add(book);
db.SaveChanges();
return(true);
}
return(false);
}
}
/// <summary>
/// Admin-Method, removes category from database.
/// </summary>
/// <returns>
/// True if category is deleted, else false.
/// </returns>
public bool DeleteCategory(int adminID, int categoryID)
{
using (var db = new WScontext())
{
var hm = new HelperMethods();
var category = db.BookCategories.
FirstOrDefault(
c => c.Id == categoryID
);
if (category != null && hm.AdminCheck(adminID))
{
db.BookCategories.Remove(category);
db.SaveChanges();
return(true);
}
return(false);
}
}
/// <summary>
/// Admin-Method, remove book from database.
/// </summary>
/// <returns>
/// True if book is deleted, else false.
/// </returns>
public bool DeleteBook(int adminID, int bookID)
{
using (var db = new WScontext())
{
var hm = new HelperMethods();
var book = db.Books.
FirstOrDefault(
b => b.Id == bookID
);
if (book != null && hm.AdminCheck(adminID))
{
db.Books.Remove(book);
db.SaveChanges();
return(true);
}
return(false);
}
}
/// <summary>
/// Admin-Method, sets bookamount.
/// </summary>
public bool SetAmount(int adminID, int bookID, int amount)
{
using (var db = new WScontext())
{
var hm = new HelperMethods();
var book = db.Books.
FirstOrDefault(
b => b.Id == bookID
);
if (book != null && hm.AdminCheck(adminID) == true)
{
book.Amount = amount;
db.Books.Update(book);
db.SaveChanges();
return(true);
}
return(false);
}
}
/// <summary>
/// Admin-Method, adds category.
/// </summary>
/// <returns>
/// True if category is added, else false.
/// </returns>
public bool AddCategory(int adminID, string name)
{
using (var db = new WScontext())
{
var hm = new HelperMethods();
var category = db.BookCategories.
FirstOrDefault(
c => c.Name == name
);
if (category == null && hm.AdminCheck(adminID))
{
category = new BookCategory {
Name = name
};
db.BookCategories.Add(category);
db.SaveChanges();
return(true);
}
return(false);
}
}
/// <summary>
/// Admin-Method, list of users.
/// </summary>
public void ListUsers(int adminID)
{
using (var db = new WScontext())
{
var hm = new HelperMethods();
var users = db.Users.ToArray();
if (users != null && hm.AdminCheck(adminID))
{
foreach (var user in users)
{
if (user.IsAdmin == false)
{
Console.WriteLine($"{user.Id}. {user.Name}");
}
else
{
Console.WriteLine($"{user.Id}. {user.Name} (Admin)");
}
}
}
}
}
