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/* Copyright (c) MediaArea.net SARL. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license that can
* be found in the License.html file in the root of the source tree.
*/
//---------------------------------------------------------------------------
#ifdef HAVE_SQLITE
//---------------------------------------------------------------------------
#ifdef __BORLANDC__
#pragma hdrstop
#endif
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
#include "SQLLite.h"
#include <sstream>
#include <stdio.h>
#include <stdlib.h>
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
namespace MediaConch {
//***************************************************************************
// SQLLite
//***************************************************************************
//***************************************************************************
// Constructor/Destructor
//***************************************************************************
//---------------------------------------------------------------------------
SQLLite::SQLLite()
{
db = NULL;
stmt = NULL;
}
//---------------------------------------------------------------------------
SQLLite::~SQLLite()
{
if (db)
sqlite3_close(db);
}
//---------------------------------------------------------------------------
int SQLLite::init(const std::string& db_dirname, const std::string& db_filename)
{
std::string db_file(db_dirname + db_filename);
int ret = sqlite3_open(db_file.c_str(), &db);
if (ret)
{
std::stringstream err("Error to open the DB: ");
err << sqlite3_errmsg(db);
error = err.str();
sqlite3_close(db);
db = NULL;
return -1;
}
return 0;
}
//---------------------------------------------------------------------------
int SQLLite::execute()
{
if (!db || !stmt)
return -1;
error.clear();
int ret;
while (1)
{
ret = sqlite3_step(stmt);
if (ret == SQLITE_DONE)
break;
else if (ret == SQLITE_ROW)
{
std::map<std::string, std::string> tmp;
for (int i = 0; i < sqlite3_column_count(stmt); ++i)
{
std::string name(sqlite3_column_name(stmt, i));
const void *blob = sqlite3_column_blob(stmt, i);
std::string value((const char *)blob, sqlite3_column_bytes(stmt, i));
tmp[name] = value;
}
reports.push_back(tmp);
}
else
{
ret = sqlite3_reset(stmt);
error = get_sqlite_error(ret);
break;
}
}
sqlite3_finalize(stmt);
stmt = NULL;
if(ret == SQLITE_DONE)
return 0;
return -1;
}
//---------------------------------------------------------------------------
long SQLLite::std_string_to_int(const std::string& str)
{
long val;
char *end = NULL;
val = strtol(str.c_str(), &end, 10);
// if (!end || *end != '\0')
// error;
return val;
}
//---------------------------------------------------------------------------
size_t SQLLite::std_string_to_uint(const std::string& str)
{
size_t val;
char *end = NULL;
val = strtoul(str.c_str(), &end, 10);
// if (!end || *end != '\0')
// error;
return val;
}
//---------------------------------------------------------------------------
unsigned long long SQLLite::std_string_to_ullong(const std::string& str)
{
unsigned long long val;
char *end = NULL;
val = strtoull(str.c_str(), &end, 10);
// if (!end || *end != '\0')
// error;
return val;
}
//---------------------------------------------------------------------------
int SQLLite::get_db_version(int& version)
{
reports.clear();
query = std::string("PRAGMA user_version;");
const char* end = NULL;
int ret = sqlite3_prepare_v2(db, query.c_str(), query.length() + 1, &stmt, &end);
if (ret != SQLITE_OK || !stmt || (end && *end))
return -1;
if (execute() < 0 || reports.size() != 1 || reports[0].find("user_version") == reports[0].end())
return -1;
version = std_string_to_int(reports[0]["user_version"]);
return 0;
}
//---------------------------------------------------------------------------
int SQLLite::set_db_version(int version)
{
reports.clear();
std::stringstream create;
create << "PRAGMA user_version=" << version << ";";
query = create.str();
std::string err;
if (prepare_v2(query, err) < 0)
return -1;
if (execute() < 0)
return -1;
return 0;
}
//---------------------------------------------------------------------------
const std::string& SQLLite::get_error() const
{
return error;
}
//---------------------------------------------------------------------------
std::string SQLLite::get_sqlite_error(int err)
{
#if SQLITE_VERSION_NUMBER >= 3007015
return sqlite3_errstr(err);
#else
return "An error occurs during execution";
#endif
}
//---------------------------------------------------------------------------
int SQLLite::prepare_v2(std::string& query, std::string& err)
{
const char* end = NULL;
int ret = sqlite3_prepare_v2(db, query.c_str(), query.length() + 1, &stmt, &end);
if (ret != SQLITE_OK || !stmt || (end && *end))
{
if (ret != SQLITE_OK)
err = get_sqlite_error(ret);
else
err = "Internal error when creating SQLLite query.";
return -1;
}
return 0;
}
}
#endif
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