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### Changes Made to the Code
1. **Input Validation**:
- Added checks in the `add_book` function to ensure the `title` and `author` fields are not empty before adding a new book. This prevents invalid or incomplete data from being added to the system.
2. **Improved Error Handling**:
- Enhanced error messages to provide more clarity and consistency, ensuring users understand the issue clearly when an operation fails.
- Added specific error checks in `borrow_book` and `return_book` functions to handle edge cases like:
- Borrowing a book that is already borrowed.
- Returning a book that is not currently borrowed.
3. **Optimized Helper Functions**:
- Streamlined the `_get_book` function to efficiently retrieve book details while avoiding redundancy in error handling across the code.
4. **Enhanced Comments**:
- Added detailed comments to all functions, structs, and enums to explain their purpose, parameters, and behavior.
- Documented the purpose and usage of thread-local variables for ID management and book storage.
5. **State Validation**:
- Updated state transition logic in `borrow_book` and `return_book` to ensure books cannot move to invalid states:
- Prevented borrowing an unavailable book.
- Prevented returning an already available book.
6. **Optimized Functionality**:
- Improved the `do_insert_book` helper function for consistency in book insertion and updates.
- Refactored the `get_available_books` function for better readability and performance.
7. **Candid Interface Export**:
- Maintained compatibility with the Candid interface for seamless integration and interaction with other modules or front-end components.
These changes collectively improve the robustness, readability, and usability of the code, ensuring it meets production-grade standards.
Panduan Reviewer oleh SourceryPR ini memperkenalkan beberapa peningkatan pada sistem manajemen perpustakaan, dengan fokus pada validasi input, penanganan kesalahan yang ditingkatkan, fungsi pembantu yang dioptimalkan, komentar yang diperbaiki, validasi status, fungsionalitas yang dioptimalkan, dan kompatibilitas antarmuka Candid. Diagram urutan untuk proses peminjaman buku dengan validasi barusequenceDiagram
actor User
participant System
participant Storage
User->>System: borrow_book(book_id)
System->>Storage: _get_book(book_id)
Storage-->>System: return book
alt book not found
System-->>User: Error: Book not found
else book not available
System-->>User: Error: Book not available for borrowing
else book available
System->>Storage: Update book status
Storage-->>System: Confirm update
System-->>User: Return updated book
end
Diagram kelas untuk sistem manajemen perpustakaan yang diperbaruiclassDiagram
class Book {
+u64 id
+String title
+String author
+Genre genre
+bool is_available
+Option~String~ borrower
}
class Genre {
<<enumeration>>
Fiction
NonFiction
Science
Technology
}
class BookPayload {
+String title
+String author
+Genre genre
}
class Error {
<<enumeration>>
NotFound
InvalidOperation
}
Book -- Genre
BookPayload -- Genre
note for Book "Ditambahkan validasi input dan penanganan kesalahan yang diperbaiki"
note for Error "Pesan kesalahan yang ditingkatkan untuk kejelasan yang lebih baik"
Diagram status untuk transisi ketersediaan bukustateDiagram-v2
[*] --> Available
Available --> Borrowed: borrow_book()
Borrowed --> Available: return_book()
Available --> [*]: delete_book()
Borrowed --> [*]: delete_book()
note right of Available: Validasi input ditambahkan
note right of Borrowed: Penanganan kesalahan yang ditingkatkan
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Original review guide in EnglishReviewer's Guide by SourceryThis PR introduces several improvements to the library management system, focusing on input validation, enhanced error handling, optimized helper functions, improved comments, state validation, optimized functionality, and Candid interface compatibility. Sequence diagram for book borrowing process with new validationsequenceDiagram
actor User
participant System
participant Storage
User->>System: borrow_book(book_id)
System->>Storage: _get_book(book_id)
Storage-->>System: return book
alt book not found
System-->>User: Error: Book not found
else book not available
System-->>User: Error: Book not available for borrowing
else book available
System->>Storage: Update book status
Storage-->>System: Confirm update
System-->>User: Return updated book
end
Class diagram for the updated library management systemclassDiagram
class Book {
+u64 id
+String title
+String author
+Genre genre
+bool is_available
+Option~String~ borrower
}
class Genre {
<<enumeration>>
Fiction
NonFiction
Science
Technology
}
class BookPayload {
+String title
+String author
+Genre genre
}
class Error {
<<enumeration>>
NotFound
InvalidOperation
}
Book -- Genre
BookPayload -- Genre
note for Book "Added input validation and improved error handling"
note for Error "Enhanced error messages for better clarity"
State diagram for book availability transitionsstateDiagram-v2
[*] --> Available
Available --> Borrowed: borrow_book()
Borrowed --> Available: return_book()
Available --> [*]: delete_book()
Borrowed --> [*]: delete_book()
note right of Available: Input validation added
note right of Borrowed: Enhanced error handling
File-Level Changes
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Hai @maheshVishwakarma1998 - Saya telah meninjau perubahan Anda - berikut beberapa umpan balik:
Komentar Keseluruhan:
- Pertimbangkan apakah 1024 byte cukup untuk MAX_SIZE Buku. Ini bisa terlalu membatasi untuk buku dengan judul/penulis yang lebih panjang atau jika lebih banyak bidang ditambahkan di masa depan. Pertimbangkan untuk meningkatkan batas ini atau membuatnya dapat dikonfigurasi.
Inilah yang saya lihat selama tinjauan
- 🟡 Masalah umum: 1 masalah ditemukan
- 🟢 Keamanan: semua terlihat baik
- 🟢 Pengujian: semua terlihat baik
- 🟢 Kompleksitas: semua terlihat baik
- 🟢 Dokumentasi: semua terlihat baik
Sourcery gratis untuk open source - jika Anda menyukai ulasan kami, silakan pertimbangkan untuk membagikannya ✨
Original comment in English
Hey @maheshVishwakarma1998 - I've reviewed your changes - here's some feedback:
Overall Comments:
- Consider if 1024 bytes is sufficient for the Book's MAX_SIZE. This could be too restrictive for books with longer titles/authors or if more fields are added in the future. Consider increasing this limit or making it configurable.
Here's what I looked at during the review
- 🟡 General issues: 1 issue found
- 🟢 Security: all looks good
- 🟢 Testing: all looks good
- 🟢 Complexity: all looks good
- 🟢 Documentation: all looks good
Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
| #[ic_cdk::update] | ||
| fn add_book(payload: BookPayload) -> Result<Book, Error> { | ||
| // Validate input | ||
| if payload.title.trim().is_empty() || payload.author.trim().is_empty() { |
There was a problem hiding this comment.
saran: Validasi input bisa lebih komprehensif
Pertimbangkan untuk menambahkan validasi batas atas untuk panjang judul dan penulis untuk memastikan mereka tidak melebihi batas yang wajar atau menyebabkan Buku melebihi MAX_SIZE.
Implementasi yang disarankan:
// Konstanta untuk validasi input
const MAX_TITLE_LENGTH: usize = 200; // Panjang judul maksimum yang wajar
const MAX_AUTHOR_LENGTH: usize = 100; // Panjang penulis maksimum yang wajar
// Pembaruan: Tambahkan buku baru ke perpustakaan // Validasi input
let title = payload.title.trim();
let author = payload.author.trim();
if title.is_empty() || author.is_empty() {
return Err(Error::InvalidOperation {
msg: "Judul dan penulis tidak boleh kosong.".to_string(),
});
}
if title.len() > MAX_TITLE_LENGTH {
return Err(Error::InvalidOperation {
msg: format!("Panjang judul melebihi maksimum {} karakter", MAX_TITLE_LENGTH),
});
}
if author.len() > MAX_AUTHOR_LENGTH {
return Err(Error::InvalidOperation {
msg: format!("Panjang penulis melebihi maksimum {} karakter", MAX_AUTHOR_LENGTH),
});
}Original comment in English
suggestion: Input validation could be more comprehensive
Consider adding upper bounds validation for title and author lengths to ensure they don't exceed reasonable limits or cause the Book to exceed MAX_SIZE.
Suggested implementation:
// Constants for input validation
const MAX_TITLE_LENGTH: usize = 200; // Maximum reasonable title length
const MAX_AUTHOR_LENGTH: usize = 100; // Maximum reasonable author length
// Update: Add a new book to the library // Validate input
let title = payload.title.trim();
let author = payload.author.trim();
if title.is_empty() || author.is_empty() {
return Err(Error::InvalidOperation {
msg: "Title and author cannot be empty.".to_string(),
});
}
if title.len() > MAX_TITLE_LENGTH {
return Err(Error::InvalidOperation {
msg: format!("Title length exceeds maximum of {} characters", MAX_TITLE_LENGTH),
});
}
if author.len() > MAX_AUTHOR_LENGTH {
return Err(Error::InvalidOperation {
msg: format!("Author length exceeds maximum of {} characters", MAX_AUTHOR_LENGTH),
});
}
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Changes Made to the Code
Input Validation:
add_bookfunction to ensure thetitleandauthorfields are not empty before adding a new book. This prevents invalid or incomplete data from being added to the system.Improved Error Handling:
borrow_bookandreturn_bookfunctions to handle edge cases like:Optimized Helper Functions:
_get_bookfunction to efficiently retrieve book details while avoiding redundancy in error handling across the code.Enhanced Comments:
State Validation:
borrow_bookandreturn_bookto ensure books cannot move to invalid states: - Prevented borrowing an unavailable book. - Prevented returning an already available book.Optimized Functionality:
do_insert_bookhelper function for consistency in book insertion and updates.get_available_booksfunction for better readability and performance.Candid Interface Export:
These changes collectively improve the robustness, readability, and usability of the code, ensuring it meets production-grade standards.
Ringkasan oleh Sourcery
Tambahkan validasi input untuk bidang judul dan penulis saat menambahkan buku baru. Tingkatkan penanganan kesalahan dan pesan untuk kejelasan dan konsistensi. Implementasikan pemeriksaan kesalahan spesifik dalam
borrow_bookdanreturn_bookuntuk menangani kasus tepi, seperti meminjam buku yang sudah dipinjam atau mengembalikan buku yang saat ini tidak dipinjam. Optimalkan fungsi pembantu_get_bookuntuk pengambilan buku yang efisien dan hindari penanganan kesalahan yang berlebihan. Tingkatkan komentar dan dokumentasi untuk semua fungsi, struktur, dan enum, termasuk variabel thread-local. Perbarui logika transisi status untuk mencegah status buku yang tidak valid, seperti meminjam buku yang tidak tersedia atau mengembalikan buku yang sudah tersedia. Tingkatkan fungsi pembantudo_insert_bookuntuk konsistensi dan refactor fungsiget_available_booksuntuk keterbacaan dan kinerja yang lebih baik.Perbaikan Bug:
borrow_bookdanreturn_book, seperti meminjam buku yang sudah dipinjam atau mengembalikan buku yang saat ini tidak dipinjam.Original summary in English
Summary by Sourcery
Add input validation for the title and author fields when adding a new book. Improve error handling and messages for clarity and consistency. Implement specific error checks in borrow_book and return_book to handle edge cases, such as borrowing an already borrowed book or returning a book that is not currently borrowed. Optimize the _get_book helper function for efficient book retrieval and avoid redundant error handling. Enhance comments and documentation for all functions, structs, and enums, including thread-local variables. Update state transition logic to prevent invalid book states, such as borrowing unavailable books or returning already available books. Improve the do_insert_book helper function for consistency and refactor the get_available_books function for better readability and performance.
Bug Fixes:
borrow_bookandreturn_bookfunctions, such as borrowing an already borrowed book or returning a book that is not currently borrowed.