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feat: namespace team4 added

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SkajpCZ 2025-11-10 10:43:10 +01:00
parent 22aec4322a
commit 7bab856643
1 changed files with 214 additions and 210 deletions
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418
src/team4.cs
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@ -2,259 +2,263 @@ using System;
using Microsoft.Data.Sqlite; using Microsoft.Data.Sqlite;
using Database.Dto; using Database.Dto;
public class Team4
namespace Team4
{ {
public static List<BookDto> GetBooksByName(SqliteConnection conn, string name) public class Team4
{ {
try public static List<BookDto> GetBooksByName(SqliteConnection conn, string name)
{ {
using (var command = conn.CreateCommand()) try
{ {
command.CommandText = @" using (var command = conn.CreateCommand())
SELECT book.ID, book.Name, book.YearOfRelease, book.Total,
author.ID, author.Name, author.Surname, author.DateOfBirth,
publisher.ID, publisher.Name, publisher.State
FROM Books book
LEFT JOIN Authors author ON book.AuthorID = author.ID
LEFT JOIN Publisher publisher ON book.PublisherID = publisher.ID
WHERE book.Name = @name;";
command.Parameters.AddWithValue("@name", name);
var books = new List<BookDto>();
using (var reader = command.ExecuteReader())
{ {
while (reader.Read()) command.CommandText = @"
SELECT book.ID, book.Name, book.YearOfRelease, book.Total,
author.ID, author.Name, author.Surname, author.DateOfBirth,
publisher.ID, publisher.Name, publisher.State
FROM Books book
LEFT JOIN Authors author ON book.AuthorID = author.ID
LEFT JOIN Publisher publisher ON book.PublisherID = publisher.ID
WHERE book.Name = @name;";
command.Parameters.AddWithValue("@name", name);
var books = new List<BookDto>();
using (var reader = command.ExecuteReader())
{ {
var book = new BookDto while (reader.Read())
{ {
Id = reader.GetInt32(0), var book = new BookDto
Name = reader.GetString(1),
YearOfRelease = reader.IsDBNull(2) ? 0 : reader.GetInt32(2),
Total = reader.IsDBNull(3) ? 0 : reader.GetInt32(3),
Author = new AuthorDto
{ {
Id = reader.IsDBNull(4) ? 0 : reader.GetInt32(4), Id = reader.GetInt32(0),
Name = reader.IsDBNull(5) ? "" : reader.GetString(5), Name = reader.GetString(1),
Surname = reader.IsDBNull(6) ? "" : reader.GetString(6), YearOfRelease = reader.IsDBNull(2) ? 0 : reader.GetInt32(2),
DateOfBirth = reader.IsDBNull(7) ? DateTime.MinValue : reader.GetDateTime(7) Total = reader.IsDBNull(3) ? 0 : reader.GetInt32(3),
}, Author = new AuthorDto
Publisher = new Publisher {
Id = reader.IsDBNull(4) ? 0 : reader.GetInt32(4),
Name = reader.IsDBNull(5) ? "" : reader.GetString(5),
Surname = reader.IsDBNull(6) ? "" : reader.GetString(6),
DateOfBirth = reader.IsDBNull(7) ? DateTime.MinValue : reader.GetDateTime(7)
},
Publisher = new Publisher
{
Id = reader.IsDBNull(8) ? 0 : reader.GetInt32(8),
Name = reader.IsDBNull(9) ? "" : reader.GetString(9),
State = reader.IsDBNull(10) ? "" : reader.GetString(10)
}
};
books.Add(book);
}
}
return books;
}
}
catch (Exception ex)
{
Console.WriteLine($"Error in GetBooksByName: {ex.Message}");
throw;
}
}
public static List<BookDto> GetBooksByAuthor(SqliteConnection conn, AuthorDto author)
{
try
{
using (var command = conn.CreateCommand())
{
command.CommandText = @"
SELECT book.ID, book.Name, book.YearOfRelease, book.Total,
publisher.ID, publisher.Name, publisher.State
FROM Books book
LEFT JOIN Publisher publisher ON book.PublisherID = publisher.ID
WHERE book.AuthorID = @id;";
command.Parameters.AddWithValue("@id", author.Id);
var books = new List<BookDto>();
using (var reader = command.ExecuteReader())
{
while (reader.Read())
{
books.Add(new BookDto
{ {
Id = reader.IsDBNull(8) ? 0 : reader.GetInt32(8), Id = reader.GetInt32(0),
Name = reader.IsDBNull(9) ? "" : reader.GetString(9), Name = reader.GetString(1),
State = reader.IsDBNull(10) ? "" : reader.GetString(10) YearOfRelease = reader.IsDBNull(2) ? 0 : reader.GetInt32(2),
} Total = reader.IsDBNull(3) ? 0 : reader.GetInt32(3),
}; Author = author,
books.Add(book); Publisher = new Publisher
{
Id = reader.IsDBNull(4) ? 0 : reader.GetInt32(4),
Name = reader.IsDBNull(5) ? "" : reader.GetString(5),
State = reader.IsDBNull(6) ? "" : reader.GetString(6)
}
});
}
} }
return books;
} }
return books; }
catch (Exception ex)
{
Console.WriteLine($"Error in GetBooksByAuthor: {ex.Message}");
throw;
} }
} }
catch (Exception ex)
public static List<BookDto> GetBooksByAvailableBooks(SqliteConnection conn, int minStock = 1)
{ {
Console.WriteLine($"Error in GetBooksByName: {ex.Message}"); try
throw;
}
}
public static List<BookDto> GetBooksByAuthor(SqliteConnection conn, AuthorDto author)
{
try
{
using (var command = conn.CreateCommand())
{ {
command.CommandText = @" using (var command = conn.CreateCommand())
SELECT book.ID, book.Name, book.YearOfRelease, book.Total,
publisher.ID, publisher.Name, publisher.State
FROM Books book
LEFT JOIN Publisher publisher ON book.PublisherID = publisher.ID
WHERE book.AuthorID = @id;";
command.Parameters.AddWithValue("@id", author.Id);
var books = new List<BookDto>();
using (var reader = command.ExecuteReader())
{ {
while (reader.Read()) command.CommandText = @"
SELECT book.ID, book.Name, book.YearOfRelease, book.Total
FROM Books book
WHERE book.Total >= @min;";
command.Parameters.AddWithValue("@min", minStock);
var books = new List<BookDto>();
using (var reader = command.ExecuteReader())
{ {
books.Add(new BookDto while (reader.Read())
{ {
Id = reader.GetInt32(0), books.Add(new BookDto
Name = reader.GetString(1),
YearOfRelease = reader.IsDBNull(2) ? 0 : reader.GetInt32(2),
Total = reader.IsDBNull(3) ? 0 : reader.GetInt32(3),
Author = author,
Publisher = new Publisher
{ {
Id = reader.IsDBNull(4) ? 0 : reader.GetInt32(4), Id = reader.GetInt32(0),
Name = reader.IsDBNull(5) ? "" : reader.GetString(5), Name = reader.GetString(1),
State = reader.IsDBNull(6) ? "" : reader.GetString(6) YearOfRelease = reader.IsDBNull(2) ? 0 : reader.GetInt32(2),
} Total = reader.IsDBNull(3) ? 0 : reader.GetInt32(3)
}); });
}
} }
return books;
} }
return books;
} }
} catch (Exception ex)
catch (Exception ex)
{
Console.WriteLine($"Error in GetBooksByAuthor: {ex.Message}");
throw;
}
}
public static List<BookDto> GetBooksByAvailableBooks(SqliteConnection conn, int minStock = 1)
{
try
{
using (var command = conn.CreateCommand())
{ {
command.CommandText = @" Console.WriteLine($"Error in GetBooksByAvailableBooks: {ex.Message}");
SELECT book.ID, book.Name, book.YearOfRelease, book.Total throw;
FROM Books book
WHERE book.Total >= @min;";
command.Parameters.AddWithValue("@min", minStock);
var books = new List<BookDto>();
using (var reader = command.ExecuteReader())
{
while (reader.Read())
{
books.Add(new BookDto
{
Id = reader.GetInt32(0),
Name = reader.GetString(1),
YearOfRelease = reader.IsDBNull(2) ? 0 : reader.GetInt32(2),
Total = reader.IsDBNull(3) ? 0 : reader.GetInt32(3)
});
}
}
return books;
} }
} }
catch (Exception ex)
{
Console.WriteLine($"Error in GetBooksByAvailableBooks: {ex.Message}");
throw;
}
}
public static List<BookDto> GetStolenBooks(SqliteConnection conn) public static List<BookDto> GetStolenBooks(SqliteConnection conn)
{
try
{ {
using (var command = conn.CreateCommand()) try
{ {
command.CommandText = @" using (var command = conn.CreateCommand())
SELECT book.ID, book.Name, book.YearOfRelease, book.Total
FROM Borrows borrow
INNER JOIN Books book ON borrow.BookID = book.ID
WHERE borrow.DateOfReturn IS NULL AND borrow.ReturnDue < DATE('now');";
var books = new List<BookDto>();
using (var reader = command.ExecuteReader())
{ {
while (reader.Read()) command.CommandText = @"
{ SELECT book.ID, book.Name, book.YearOfRelease, book.Total
books.Add(new BookDto FROM Borrows borrow
{ INNER JOIN Books book ON borrow.BookID = book.ID
Id = reader.GetInt32(0), WHERE borrow.DateOfReturn IS NULL AND borrow.ReturnDue < DATE('now');";
Name = reader.GetString(1),
YearOfRelease = reader.IsDBNull(2) ? 0 : reader.GetInt32(2),
Total = reader.IsDBNull(3) ? 0 : reader.GetInt32(3)
});
}
}
return books;
}
}
catch (Exception ex)
{
Console.WriteLine($"Error in GetStolenBooks: {ex.Message}");
throw;
}
}
public static List<BookDto> GetStolenBooksByUser(SqliteConnection conn, UserDto user) var books = new List<BookDto>();
{ using (var reader = command.ExecuteReader())
try {
{ while (reader.Read())
using (var command = conn.CreateCommand()) {
books.Add(new BookDto
{
Id = reader.GetInt32(0),
Name = reader.GetString(1),
YearOfRelease = reader.IsDBNull(2) ? 0 : reader.GetInt32(2),
Total = reader.IsDBNull(3) ? 0 : reader.GetInt32(3)
});
}
}
return books;
}
}
catch (Exception ex)
{ {
command.CommandText = @" Console.WriteLine($"Error in GetStolenBooks: {ex.Message}");
SELECT book.ID, book.Name, book.YearOfRelease, book.Total throw;
FROM Borrows borrow
INNER JOIN Books book ON borrow.BookID = book.ID
WHERE borrow.UserID = @uid AND borrow.DateOfReturn IS NULL AND borrow.ReturnDue < DATE('now');";
command.Parameters.AddWithValue("@uid", user.Id);
var books = new List<BookDto>();
using (var reader = command.ExecuteReader())
{
while (reader.Read())
{
books.Add(new BookDto
{
Id = reader.GetInt32(0),
Name = reader.GetString(1),
YearOfRelease = reader.IsDBNull(2) ? 0 : reader.GetInt32(2),
Total = reader.IsDBNull(3) ? 0 : reader.GetInt32(3)
});
}
}
return books;
} }
} }
catch (Exception ex)
{
Console.WriteLine($"Error in GetStolenBooksByUser: {ex.Message}");
throw;
}
}
public static AuthorDto GetAuthorById(SqliteConnection conn, int authorID) public static List<BookDto> GetStolenBooksByUser(SqliteConnection conn, UserDto user)
{
try
{ {
using (var command = conn.CreateCommand()) try
{ {
command.CommandText = @" using (var command = conn.CreateCommand())
SELECT author.ID
FROM Authors author
WHERE author.ID = @aid;";
command.Parameters.AddWithValue("@aid", authorID);
using (var reader = command.ExecuteReader())
{ {
while (reader.Read()) command.CommandText = @"
SELECT book.ID, book.Name, book.YearOfRelease, book.Total
FROM Borrows borrow
INNER JOIN Books book ON borrow.BookID = book.ID
WHERE borrow.UserID = @uid AND borrow.DateOfReturn IS NULL AND borrow.ReturnDue < DATE('now');";
command.Parameters.AddWithValue("@uid", user.Id);
var books = new List<BookDto>();
using (var reader = command.ExecuteReader())
{ {
return new AuthorDto while (reader.Read())
{ {
Id = reader.GetInt32(0), books.Add(new BookDto
Name = reader.GetString(1), {
Surname = reader.GetString(2), Id = reader.GetInt32(0),
DateOfBirth = reader.GetDateTime(3) Name = reader.GetString(1),
}; YearOfRelease = reader.IsDBNull(2) ? 0 : reader.GetInt32(2),
Total = reader.IsDBNull(3) ? 0 : reader.GetInt32(3)
});
}
} }
return books;
} }
return null; }
catch (Exception ex)
{
Console.WriteLine($"Error in GetStolenBooksByUser: {ex.Message}");
throw;
} }
} }
catch (Exception ex)
public static AuthorDto GetAuthorById(SqliteConnection conn, int authorID)
{ {
Console.WriteLine($"Error in GetAuthorById: {ex.Message}"); try
throw; {
using (var command = conn.CreateCommand())
{
command.CommandText = @"
SELECT author.ID
FROM Authors author
WHERE author.ID = @aid;";
command.Parameters.AddWithValue("@aid", authorID);
using (var reader = command.ExecuteReader())
{
while (reader.Read())
{
return new AuthorDto
{
Id = reader.GetInt32(0),
Name = reader.GetString(1),
Surname = reader.GetString(2),
DateOfBirth = reader.GetDateTime(3)
};
}
}
return null;
}
}
catch (Exception ex)
{
Console.WriteLine($"Error in GetAuthorById: {ex.Message}");
throw;
}
} }
}
public static void GetBooksBy(SqliteConnection conn) public static void GetBooksBy(SqliteConnection conn)
{ {
throw new NotImplementedException(); throw new NotImplementedException();
} }
public static void GetBorrowLogBy(SqliteConnection conn) public static void GetBorrowLogBy(SqliteConnection conn)
{ {
throw new NotImplementedException(); throw new NotImplementedException();
}
} }
} }