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/*
* Copyright (C) 2009-2012 Geometer Plus <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include <string>
#include "BooksDB.h"
#include "../../library/Book.h"
#include "../../library/Author.h"
#include "../sqldb/implsqlite/SQLiteFactory.h"
static const std::string LOAD_AUTHORS_QUERY =
"SELECT Authors.name, Authors.sort_key" \
" FROM BookAuthor" \
" INNER JOIN Authors ON Authors.author_id = BookAuthor.author_id" \
" WHERE BookAuthor.book_id = @book_id" \
" ORDER BY BookAuthor.author_index;";
static const std::string LOAD_ALL_AUTHORS_QUERY =
"SELECT Authors.name, Authors.sort_key, BookAuthor.book_id" \
" FROM BookAuthor" \
" INNER JOIN Authors ON Authors.author_id = BookAuthor.author_id" \
" ORDER BY BookAuthor.author_index;";
void BooksDB::loadAuthors(Book &book) {
static shared_ptr<DBCommand> command = SQLiteFactory::createCommand(
LOAD_AUTHORS_QUERY, connection(), "@book_id", DBValue::DBINT
);
((DBIntValue&)*command->parameter("@book_id").value()) = book.bookId();
shared_ptr<DBDataReader> reader = command->executeReader();
book.removeAllAuthors();
while (reader->next()) {
book.addAuthor(
reader->textValue(0, std::string()),
reader->textValue(1, std::string())
);
}
}
void BooksDB::loadAuthors(const std::map<int,shared_ptr<Book> > &books) {
static shared_ptr<DBCommand> command = SQLiteFactory::createCommand(
LOAD_ALL_AUTHORS_QUERY, connection()
);
shared_ptr<DBDataReader> reader = command->executeReader();
for (std::map<int,shared_ptr<Book> >::const_iterator it = books.begin(); it != books.end(); ++it) {
it->second->removeAllAuthors();
}
while (reader->next()) {
std::map<int,shared_ptr<Book> >::const_iterator it =
books.find((reader->type(2) == DBValue::DBINT) ? reader->intValue(2) : 0);
if (it != books.end()) {
it->second->addAuthor(
reader->textValue(0, std::string()),
reader->textValue(1, std::string())
);
}
}
}
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