public static void ListAllBooks()
{
DataClasses1DataContext dt = new DataClasses1DataContext();
var result = from d in dt.Books
orderby d.TITLE
select d.TITLE;
foreach (var item in result)
{
Console.WriteLine(item);
}
}
public static void GetBooksSortedByAuthor()
{
DataClasses1DataContext dt = new DataClasses1DataContext();
var result = from b in dt.Books
join a in dt.AUTHORBOOKs on b.ID equals a.BOOKID
join au in dt.AUTHORs on a.AUTHORID equals au.AUTHORID
orderby au.FIRSTNAME
select new { NAME = au.FIRSTNAME,LASTNAME= au.LASTNAME ,BOOK = b.TITLE };
foreach (var item in result)
{
Console.WriteLine($"{item.NAME} {item.LASTNAME} - {item.BOOK}");
}
}
public static void GetBookSoretedBYGenre()
{
Dictionary<string, string[]> dic = new Dictionary<string, string[]>();
DataClasses1DataContext dt = new DataClasses1DataContext();
var result = from b in dt.Books
join g in dt.BOOKGENREs on b.ID equals g.BOOKID into genresGroup
let genreNames = (from g in genresGroup
orderby g.GENRE.NAME
select g.GENRE.NAME)
orderby genreNames.First()
select new { GENRES = genreNames, BOOK = b.TITLE };
foreach (var item in result)
{
Console.WriteLine($"{item.BOOK} { string.Join(", ", item.GENRES)}");
}
}
public static void GetAllGenresFromAuthor(int id)
{
DataClasses1DataContext dt = new DataClasses1DataContext();
var result = from b in dt.Books
join ab in dt.AUTHORBOOKs on b.ID equals ab.BOOKID
join a in dt.AUTHORs on ab.AUTHORID equals a.AUTHORID
join bg in dt.BOOKGENREs on b.ID equals bg.BOOKID
into genresGropu
let genresNames =(from g in genresGropu
orderby g.GENRE.NAME
select g.GENRE.NAME)
orderby genresNames.First()
where a.AUTHORID.Equals(id)
select new { AUTNAME = a.FIRSTNAME, AutLastName=a.LASTNAME,GENREs=genresNames };
foreach (var item in result.ToList())
{
Console.WriteLine($"{item.AUTNAME} {item.AutLastName} - {string.Join(",",item.GENREs)}");
}
}
public static void GetAllBooksByAuthor(int id)
{
DataClasses1DataContext dt = new DataClasses1DataContext();
var result = from b in dt.Books
join ab in dt.AUTHORBOOKs on b.ID equals ab.BOOKID
join a in dt.AUTHORs on ab.AUTHORID equals a.AUTHORID
where a.AUTHORID.Equals(id)
select new { BOOK = b.TITLE, AUT = a.FIRSTNAME };
var name = from a in dt.AUTHORs
where a.AUTHORID.Equals(id)
select new { FRNAME = a.FIRSTNAME, LAST = a.LASTNAME };
foreach (var item in name)
{
Console.WriteLine($"{item.FRNAME} {item.LAST}");
}
foreach (var item in result)
{
Console.WriteLine(item.BOOK);
}
}
public static void InsertAuthor(AUTHOR author)
{
DataClasses1DataContext dt = new DataClasses1DataContext();
dt.AUTHORs.InsertOnSubmit(author);
dt.SubmitChanges();
}
public static void InsertBook(Book book)
{
DataClasses1DataContext dt = new DataClasses1DataContext();
dt.Books.InsertOnSubmit(book);
dt.SubmitChanges();
}
public static void LoanBook(int bookID, int userID)
{
DataClasses1DataContext dt = new DataClasses1DataContext();
var loanedBooks = from l in dt.LOANEDBOOKSBYUSERs
where l.USERID.Equals(userID)
select new { LOADNEDBOOKS = l.BOOKID };
int couterOfLoanedBooks = 0;
foreach (var item in loanedBooks)
{
couterOfLoanedBooks++;
}
if (couterOfLoanedBooks>3)
{
Console.WriteLine("The maximum numbers that you can load is 3 ");
return;
}
else
{
}
}
public static void BookInfoTitle(string title)
{
DataClasses1DataContext dt = new DataClasses1DataContext();
var result = from b in dt.Books
join ab in dt.AUTHORBOOKs on b.ID equals ab.BOOKID
join a in dt.AUTHORs on ab.AUTHORID equals a.AUTHORID
where b.TITLE.Contains(title)
select new
{
TITLE = b.TITLE,
DESC = b.DESCRIPTION,
DATEP = b.DATEPUBLISHED,
PUBLISHE = b.PUBLISHER,
PAGES = b.PAGES,
AUTFIRSTNAME = a.FIRSTNAME,
AUTLASTNAME = a.LASTNAME,
BIRTHDATE = a.YEARBORN,
DIED = a.YEARDIED
};
foreach (var item in result)
{
Console.Write($"Title: {item.TITLE}\nDESCRIPTION: {item.DESC}\nDATEPUBLISHED: {item.DATEP}\n");
Console.Write($"PUBLISHER: {item.PUBLISHE}\nPAGES: {item.PAGES}\nINFO ABOUT THE AUTHOR(S):\n");
Console.Write($"FIRST NAME: {item.AUTFIRSTNAME}\nLAST NAME: {item.AUTLASTNAME}\n");
Console.Write($"BORN: {item.BIRTHDATE}\nDIED: {item.DIED}\n");
Console.WriteLine();
}
}