remwharead/include/sqlite.hpp

121 lines
3.1 KiB
C++

/* This file is part of remwharead.
* Copyright © 2019 tastytea <tastytea@tastytea.de>
*
* 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, version 3.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef REMWHAREAD_SQLITE_HPP
#define REMWHAREAD_SQLITE_HPP
#include <experimental/filesystem>
#include <memory>
#include <string>
#include <vector>
#include <chrono>
#include <list>
#include <Poco/Data/Session.h>
namespace remwharead
{
namespace fs = std::experimental::filesystem;
using std::string;
using std::vector;
using std::chrono::system_clock;
using time_point = system_clock::time_point;
using std::list;
using Poco::Data::Session;
/*!
* @brief Store and retrieve files from/to SQLite.
*
* @since 0.6.0
*
* @headerfile sqlite.hpp remwharead/sqlite.hpp
*/
class Database
{
public:
/*!
* @brief Describes a database entry.
*
* @since 0.6.0
*
* @headerfile sqlite.hpp remwharead/sqlite.hpp
*/
typedef struct entry
{
string uri;
string archive_uri;
time_point datetime;
vector<string> tags;
string title;
string description;
string fulltext;
/*!
* @brief Returns true if date and time are equal.
*
* @since 0.6.0
*/
friend bool operator ==(const Database::entry &a,
const Database::entry &b);
/*!
* @brief The full text in one line.
*
* @since 0.6.0
*/
const string fulltext_oneline() const;
} entry;
/*!
* @brief Connects to the database and creates it if necessary.
*
* @since 0.6.0
*/
Database();
/*!
* @brief Returns true if connected to the database.
*
* @since 0.6.0
*/
operator bool() const;
/*!
* @brief Store a Database::entry in the database.
*
* @since 0.6.0
*/
void store(const entry &data) const;
/*!
* @brief Retrieve a list of Database::entry from the database.
*
* @since 0.6.0
*/
const list<entry> retrieve(
const time_point &start = time_point(),
const time_point &end = system_clock::now()) const;
private:
fs::path _dbpath;
std::unique_ptr<Session> _session;
bool _connected;
};
using DB = Database;
}
#endif // REMWHAREAD_SQLITE_HPP