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45 lines
901 B
C++

#ifndef BOOK_DB_H_
#define BOOK_DB_H_
#include <list>
#include <string>
#include "book.h"
// Book database simulator.
// There should be some database in a real product.
class BookDB {
public:
const std::list<Book>& books() const {
return books_;
}
const Book& Get(const std::string& id) const;
// Add a book, return the ID.
// NOTE: The ID of the input book will be ignored so should be empty.
std::string Add(const Book& book);
bool Set(const Book& book);
std::string GetPhoto(const std::string& id) const;
bool SetPhoto(const std::string& id, const std::string& photo);
bool Delete(const std::string& id);
private:
std::list<Book>::const_iterator Find(const std::string& id) const;
std::list<Book>::iterator Find(const std::string& id);
// Allocate a new book ID.
std::string NewID() const;
private:
std::list<Book> books_;
};
#endif // BOOK_DB_H_