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/* This file is part of the KDE project
Copyright (C) 2002 Lucijan Busch <lucijan@gmx.at>
Daniel Molkentin <molkentin@kde.org>
Copyright (C) 2003 Joseph Wenninger<jowenn@kde.org>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef TQ_WS_WIN
# include <mysql/config-win.h>
#endif
#include <mysql_version.h>
#include <mysql.h>
#define BOOL bool
#include <tqvariant.h>
#include <tqfile.h>
#include <tqdict.h>
#include <kgenericfactory.h>
#include <kdebug.h>
#include "mysqldriver.h"
#include "mysqlconnection.h"
#include <kexidb/field.h>
#include <kexidb/driver_p.h>
#include <kexidb/utils.h>
using namespace KexiDB;
KEXIDB_DRIVER_INFO( MySqlDriver, mysql )
/* TODO: Implement buffered/unbuffered, rather than buffer everything.
Each MYSQL connection can only handle at most one unbuffered cursor,
so MySqlConnection should keep count?
*/
/*!
* Constructor sets database features and
* maps the types in KexiDB::Field::Type to the MySQL types.
*
* See: http://dev.mysql.com/doc/mysql/en/Column_types.html
*/
MySqlDriver::MySqlDriver(TQObject *parent, const char *name, const TQStringList &args) : Driver(parent, name,args)
{
// KexiDBDrvDbg << "MySqlDriver::MySqlDriver()" << endl;
d->isFileDriver=false;
d->features=IgnoreTransactions | CursorForward;
beh->ROW_ID_FIELD_NAME="LAST_INSERT_ID()";
beh->ROW_ID_FIELD_RETURNS_LAST_AUTOINCREMENTED_VALUE=true;
beh->_1ST_ROW_READ_AHEAD_RETQUIRED_TO_KNOW_IF_THE_RESULT_IS_EMPTY=false;
beh->USING_DATABASE_RETQUIRED_TO_CONNECT=false;
beh->TQUOTATION_MARKS_FOR_IDENTIFIER='`';
beh->SQL_KEYWORDS = keywords;
initSQLKeywords(331);
//predefined properties
#if MYSQL_VERSION_ID < 40000
d->properties["client_library_version"] = MYSQL_SERVER_VERSION; //nothing better
d->properties["default_server_encoding"] = MYSQL_CHARSET; //nothing better
#elif MYSQL_VERSION_ID < 50000
//OK? d->properties["client_library_version"] = mysql_get_client_version();
#endif
d->typeNames[Field::Byte]="TINYINT";
d->typeNames[Field::ShortInteger]="SMALLINT";
d->typeNames[Field::Integer]="INT";
d->typeNames[Field::BigInteger]="BIGINT";
// Can use BOOLEAN here, but BOOL has been in MySQL longer
d->typeNames[Field::Boolean]="BOOL";
d->typeNames[Field::Date]="DATE";
d->typeNames[Field::DateTime]="DATETIME";
d->typeNames[Field::Time]="TIME";
d->typeNames[Field::Float]="FLOAT";
d->typeNames[Field::Double]="DOUBLE";
d->typeNames[Field::Text]="VARCHAR";
d->typeNames[Field::LongText]="LONGTEXT";
d->typeNames[Field::BLOB]="BLOB";
}
MySqlDriver::~MySqlDriver()
{
}
KexiDB::Connection*
MySqlDriver::drv_createConnection( ConnectionData &conn_data )
{
return new MySqlConnection( this, conn_data );
}
bool MySqlDriver::isSystemDatabaseName(const TQString &n) const
{
return n.lower()=="mysql" || Driver::isSystemObjectName(n);
}
bool MySqlDriver::drv_isSystemFieldName(const TQString&) const {
return false;
}
TQString MySqlDriver::escapeString(const TQString& str) const
{
//escape as in http://dev.mysql.com/doc/refman/5.0/en/string-syntax.html
//! @todo support more characters, like %, _
const int old_length = str.length();
int i;
for ( i = 0; i < old_length; i++ ) { //anything to escape?
const unsigned int ch = str[i].unicode();
if (ch == '\\' || ch == '\'' || ch == '"' || ch == '\n' || ch == '\r' || ch == '\t' || ch == '\b' || ch == '\0')
break;
}
if (i >= old_length) { //no characters to escape
return TQString::fromLatin1("'") + str + TQString::fromLatin1("'");
}
TQChar *new_string = new TQChar[ old_length * 3 + 1 ]; // a worst case approximation
//! @todo move new_string to Driver::m_new_string or so...
int new_length = 0;
new_string[new_length++] = '\''; //prepend '
for ( i = 0; i < old_length; i++, new_length++ ) {
const unsigned int ch = str[i].unicode();
if (ch == '\\') {
new_string[new_length++] = '\\';
new_string[new_length] = '\\';
}
else if (ch <= '\'') {//check for speedup
if (ch == '\'') {
new_string[new_length++] = '\\';
new_string[new_length] = '\'';
}
else if (ch == '"') {
new_string[new_length++] = '\\';
new_string[new_length] = '"';
}
else if (ch == '\n') {
new_string[new_length++] = '\\';
new_string[new_length] = 'n';
}
else if (ch == '\r') {
new_string[new_length++] = '\\';
new_string[new_length] = 'r';
}
else if (ch == '\t') {
new_string[new_length++] = '\\';
new_string[new_length] = 't';
}
else if (ch == '\b') {
new_string[new_length++] = '\\';
new_string[new_length] = 'b';
}
else if (ch == '\0') {
new_string[new_length++] = '\\';
new_string[new_length] = '0';
}
else
new_string[new_length] = str[i];
}
else
new_string[new_length] = str[i];
}
new_string[new_length++] = '\''; //append '
TQString result(new_string, new_length);
delete [] new_string;
return result;
}
TQString MySqlDriver::escapeBLOB(const TQByteArray& array) const
{
return KexiDB::escapeBLOB(array, KexiDB::BLOBEscape0xHex);
}
TQCString MySqlDriver::escapeString(const TQCString& str) const
{
//! @todo optimize using mysql_real_escape_string()?
//! see http://dev.mysql.com/doc/refman/5.0/en/string-syntax.html
return TQCString("'")+TQCString(str)
.replace( '\\', "\\\\" )
.replace( '\'', "\\''" )
.replace( '"', "\\\"" )
+ TQCString("'");
}
/*! Add back-ticks to an identifier, and replace any back-ticks within
* the name with single quotes.
*/
TQString MySqlDriver::drv_escapeIdentifier( const TQString& str) const {
return TQString(str).replace('`', "'");
}
TQCString MySqlDriver::drv_escapeIdentifier( const TQCString& str) const {
return TQCString(str).replace('`', "'");
}
#include "mysqldriver.moc"
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