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/**
* @licence app begin@
* SPDX-License-Identifier: MPL-2.0
*
* \copyright Copyright (C) 2013-2014, PCA Peugeot Citroen
*
* \file database.cpp
*
* \brief This file is part of the poi proof of concept.
*
* \author Philippe Colliot <philippe.colliot@mpsa.com>
*
* \version 1.1
*
* This Source Code Form is subject to the terms of the
* Mozilla Public License (MPL), v. 2.0.
* If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/.
*
* For further information see http://www.genivi.org/.
*
* List of changes:
* 10-02-2014, Philippe Colliot, refinement and migration to the new repository
* <date>, <name>, <description of change>
*
* @licence end@
*/
#include "database.h"
#include <stdio.h>
#include <iostream>
/**
* \fn Database(const char* filename)
* \brief Constructor.
*
* \param const char* filename -name of the database file to open
* \return void.
*/
Database::Database(char* filename)
{
database = NULL;
open(filename);
m_filename = filename;
}
/**
* \fn ~Database()
* \brief Destructor.
*
* \param
* \return void.
*/
Database::~Database()
{
}
/**
* \fn open(const char* filename)
* \brief Open the database.
*
* \param const char* filename -name of the database file to open
* \return bool. -true if database consistant
*/
bool Database::open(char* filename)
{
if(sqlite3_open(filename, &database) == SQLITE_OK)
return true;
return false;
}
/**
* \fn schema()
* \brief Get the scheme of the database.
*
* \param
* \return bool. -true if SQL command succeed
*/
bool Database::schema()
{
FILE *fpipe;
std::string command = "";
command += "sqlite3 ";
command += m_filename;
command += " \"";
command += ".schema";
command += "\"";
char line[256];
if ( !(fpipe = (FILE*)popen(command.c_str(),"r")) )
{ // If fpipe is NULL
perror("Problems with pipe");
return false;
}
while ( fgets( line, sizeof line, fpipe))
{
printf("%s", line);
}
pclose(fpipe);
return true;
}
/**
* \fn add(const char* scheme_filename)
* \brief Add a scheme to the database.
*
* \param const char* scheme_filename -filename that contains the scheme
* \return bool. -true if SQL command succeed
*/
bool Database::add(const char* scheme_filename)
{
FILE *fpipe;
std::string command = "";
command += "sqlite3 ";
command += m_filename;
command = command + " < " + scheme_filename;
char line[256];
if ( !(fpipe = (FILE*)popen(command.c_str(),"r")) )
{ // If fpipe is NULL
perror("Problems with pipe");
return false;
}
while ( fgets( line, sizeof line, fpipe))
{
printf("%s", line);
}
pclose(fpipe);
return true;
}
/**
* \fn beginTransaction()
* \brief Begin a SQL transaction.
*
* \param
* \return void
*/
void Database::beginTransaction()
{
char* errorMessage;
sqlite3_exec(database, "BEGIN TRANSACTION;", NULL, NULL, &errorMessage);
}
/**
* \fn appendTransaction(const char* query)
* \brief Append a SQL request.
*
* \param const char* query -SQL request
* \return void
*/
void Database::appendTransaction(const char* query)
{
char* errorMessage = "";
sqlite3_exec(database, query, NULL, NULL, &errorMessage);
}
/**
* \fn commitTransaction()
* \brief Commit a SQL transaction.
*
* \param
* \return void
*/
void Database::commitTransaction()
{
char* errorMessage = "";
sqlite3_exec(database, "COMMIT;", NULL, NULL, &errorMessage);
}
/**
* \fn query(const char* query)
* \brief Query a SQL request.
*
* \param const char* query -SQL request
* \return vector<vector<string> > -Result of the query
*/
vector<vector<Glib::ustring> > Database::query(const char* query)
{
sqlite3_stmt *statement;
vector<vector<Glib::ustring> > results;
if(sqlite3_prepare_v2(database, query, -1, &statement, 0) == SQLITE_OK)
{
int cols = sqlite3_column_count(statement);
int result = 0;
while(true)
{
result = sqlite3_step(statement);
if(result == SQLITE_ROW)
{
vector<Glib::ustring> values;
for(int col = 0; col < cols; col++)
{
Glib::ustring val;
char * ptr = (char*)sqlite3_column_text(statement, col);
if(ptr)
{
val = ptr;
}
else val = ""; // this can be commented out since std::string val;
values.push_back(val); // now we will never push NULL
}
results.push_back(values);
}
else
{
break;
}
}
sqlite3_finalize(statement);
}
string error = sqlite3_errmsg(database);
if(error != "not an error") cout << query << " " << error << endl;
return results;
}
/**
* \fn close()
* \brief Close the database.
*
* \param
* \return void
*/
void Database::close()
{
sqlite3_close(database);
}
/**
* \fn callback(void *NotUsed, int argc, char **argv, char **azColName)
* \brief Call back function for database access.
*
* \param void *NotUsed
* \param int argc
* \param char **argv
* \param char **azColName
* \return int
*/
int Database::callback(void *NotUsed, int argc, char **argv, char **azColName)
{
NotUsed=0;
int i;
for(i=0; i<argc; i++){
printf("%s = %s\n", azColName[i], argv[i] ? argv[i]: "NULL");
}
printf("\n");
return 0;
}
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