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/*
Copyright (©) 2003-2025 Teus Benschop.
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 3 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 <database/sample.h>
#include <filter/url.h>
#include <filter/string.h>
#include <database/sqlite.h>
// Database resilience: It is only read from.
void Database_Sample::create ()
{
std::string path = database::sqlite::get_file (name ());
filter_url_unlink (path);
SqliteDatabase sql = SqliteDatabase (name ());
sql.add ("CREATE TABLE IF NOT EXISTS sample (file text, data text);");
sql.execute ();
}
// Store a file and its data the sample.
void Database_Sample::store (std::string file, std::string data)
{
SqliteDatabase sql = SqliteDatabase (name ());
sql.add ("INSERT INTO sample VALUES (");
sql.add (file);
sql.add (",");
sql.add (data);
sql.add (");");
sql.execute ();
}
// Get the row identifiers in the database.
std::vector <int> Database_Sample::get ()
{
SqliteDatabase sql = SqliteDatabase (name ());
sql.add ("SELECT rowid FROM sample;");
std::vector <std::string> rowids = sql.query () ["rowid"];
std::vector <int> ids;
for (auto rowid : rowids) ids.push_back (filter::strings::convert_to_int (rowid));
return ids;
}
// Get a a file and its contents.
void Database_Sample::get (int rowid, std::string & file, std::string & data)
{
SqliteDatabase sql = SqliteDatabase (name ());
sql.add ("SELECT file, data FROM sample WHERE rowid =");
sql.add (rowid);
sql.add (";");
std::map <std::string, std::vector <std::string> > sample = sql.query ();
std::vector <std::string> files = sample ["file"];
if (files.empty ()) file.clear ();
else file = files [0];
std::vector <std::string> datas = sample ["data"];
if (datas.empty ()) data.clear ();
else data = datas [0];
}
const char * Database_Sample::name ()
{
return "sample";
}
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