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/*********************************************************************************
NixNote - An open-source client for the Evernote service.
Copyright (C) 2013 Randy Baumgarte
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 "databaseconnection.h"
#include "global.h"
#include "notetable.h"
#include "sql/nsqlquery.h"
#include "resourcetable.h"
#include "sql/databaseupgrade.h"
extern Global global;
//*****************************************
//* This class is used to connect to the
//* database.
//*****************************************
DatabaseConnection::DatabaseConnection(QString connection)
{
dbLocked = Unlocked;
this->connection = connection;
QLOG_DEBUG() << "SQL drivers available: " << QSqlDatabase::drivers();
QLOG_TRACE() << "Adding database SQLITE";
conn = QSqlDatabase::addDatabase("QSQLITE", connection);
QLOG_TRACE() << "Setting DB name";
conn.setDatabaseName(global.fileManager.getDbDirPath("nixnote.db"));
QLOG_TRACE() << "Opening database";
if (!conn.open()) {
QLOG_ERROR() << "Error opening database: " << conn.lastError();
exit(16);
}
if (connection == "nixnote")
global.db = this;
QLOG_TRACE() << "Preparing tables";
// Start preparing the tables
configStore = new ConfigStore(this);
dataStore = new DataStore(this);
NSqlQuery tempTable(this);
// tempTable.exec("pragma cache_size=8096");
// tempTable.exec("pragma page_size=8096");
tempTable.exec("pragma busy_timeout=50000");
tempTable.exec("pragma journal_mode=wal");
// tempTable.exec("pragma SQLITE_THREADSAFE=2");
if (connection == "nixnote") {
tempTable.exec("pragma COMPILE_OPTIONS");
QLOG_DEBUG() << "*** SQLITE COMPILE OPTIONS ***";
while (tempTable.next()) {
QLOG_DEBUG() << tempTable.value(0).toString();
}
int value = global.getDatabaseVersion();
if (value < 2){
QLOG_DEBUG() << "*****************";
QLOG_DEBUG() << "Upgrading Database";
DatabaseUpgrade dbu;
dbu.fixSql();
}
global.setDatabaseVersion(2);
// Get username to use for default notes. This needs to be done after
// the database is started because we set it by default to the usertable
// username.
global.full_username = global.getUsername();
}
QLOG_TRACE() << "Creating filter table";
tempTable.exec("Create table if not exists filter (lid integer)");
tempTable.exec("delete from filter");
QLOG_TRACE() << "Adding to filter table";
tempTable.exec("insert into filter select distinct lid from NoteTable;");
QLOG_TRACE() << "Addition complete";
tempTable.finish();
}
// Destructor. Close the database & delete the
// memory used by the valiables.
DatabaseConnection::~DatabaseConnection() {
conn.close();
delete configStore;
delete dataStore;
}
// Lock the database for a read request
void DatabaseConnection::lockForRead() {
return;
if (dbLocked)
return;
global.dbLock->lockForRead();
dbLocked = Read;
}
// Lock the database for a read request
void DatabaseConnection::lockForWrite() {
return;
if (dbLocked)
return;
global.dbLock->lockForWrite();
dbLocked = Write;
}
// Unlock the database
void DatabaseConnection::unlock() {
return;
if (dbLocked == Unlocked)
return;
dbLocked = Unlocked;
global.dbLock->unlock();
}
// Get the database connection name
QString DatabaseConnection::getConnectionName() {
return connection;
}
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