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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 "../sqldb/implsqlite/SQLiteFactory.h"
static const std::string LOAD_SERIES_QUERY =
"SELECT Series.name, BookSeries.book_index" \
" FROM BookSeries" \
" INNER JOIN Series ON Series.series_id = BookSeries.series_id" \
" WHERE BookSeries.book_id = @book_id;";
static const std::string LOAD_ALL_SERIES_QUERY =
"SELECT Series.name, BookSeries.book_index, BookSeries.book_id" \
" FROM BookSeries" \
" INNER JOIN Series ON Series.series_id = BookSeries.series_id";
static Number getSeriesIndex(shared_ptr<DBDataReader> reader) {
Number seriesIndex;
if (reader->type(1) == DBValue::DBTEXT) {
seriesIndex = Number(reader->textValue(1, std::string()));
} else if (reader->type(1) == DBValue::DBREAL){ //for old database scheme
seriesIndex = Number((int)reader->realValue(1));
} else { //for old database scheme
seriesIndex = Number(reader->intValue(1));
}
return seriesIndex;
}
void BooksDB::loadSeries(Book &book) {
static shared_ptr<DBCommand> command = SQLiteFactory::createCommand(
LOAD_SERIES_QUERY, connection(), "@book_id", DBValue::DBINT
);
((DBIntValue&)*command->parameter("@book_id").value()) = book.bookId();
shared_ptr<DBDataReader> reader = command->executeReader();
if (reader->next()) {
std::string seriesTitle = reader->textValue(0, std::string());
if (!seriesTitle.empty()) {
book.setSeries(
seriesTitle,
getSeriesIndex(reader)
);
}
}
}
void BooksDB::loadSeries(const std::map<int,shared_ptr<Book> > &books) {
shared_ptr<DBCommand> command = SQLiteFactory::createCommand(
LOAD_ALL_SERIES_QUERY, connection()
);
shared_ptr<DBDataReader> reader = command->executeReader();
while (reader->next()) {
std::string seriesTitle = reader->textValue(0, std::string());
std::map<int,shared_ptr<Book> >::const_iterator it =
books.find((reader->type(2) == DBValue::DBINT) ? reader->intValue(2) : 0);
if (!seriesTitle.empty() && it != books.end()) {
it->second->setSeries(
seriesTitle,
getSeriesIndex(reader)
);
}
}
}
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