src/sql/drivers/odbc/qsql_odbc.h
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
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     7 ** This file is part of the QtSql module of the Qt Toolkit.
       
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     9 ** $QT_BEGIN_LICENSE:LGPL$
       
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    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
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    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
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    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
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    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
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    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #ifndef QSQL_ODBC_H
       
    43 #define QSQL_ODBC_H
       
    44 
       
    45 #include <QtSql/qsqldriver.h>
       
    46 #include <QtSql/qsqlresult.h>
       
    47 
       
    48 #if defined (Q_OS_WIN32)
       
    49 #include <QtCore/qt_windows.h>
       
    50 #endif
       
    51 
       
    52 #if defined (Q_OS_MAC) && (MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_3)
       
    53 // assume we use iodbc on MACX
       
    54 // comment next line out if you use a
       
    55 // unicode compatible manager
       
    56 # define Q_ODBC_VERSION_2
       
    57 #endif
       
    58 
       
    59 #ifdef QT_PLUGIN
       
    60 #define Q_EXPORT_SQLDRIVER_ODBC
       
    61 #else
       
    62 #define Q_EXPORT_SQLDRIVER_ODBC Q_SQL_EXPORT
       
    63 #endif
       
    64 
       
    65 #ifdef Q_OS_UNIX
       
    66 #define HAVE_LONG_LONG 1 // force UnixODBC NOT to fall back to a struct for BIGINTs
       
    67 #endif
       
    68 
       
    69 #if defined(Q_CC_BOR)
       
    70 // workaround for Borland to make sure that SQLBIGINT is defined
       
    71 #  define _MSC_VER 900
       
    72 #endif
       
    73 #include <sql.h>
       
    74 #if defined(Q_CC_BOR)
       
    75 #  undef _MSC_VER
       
    76 #endif
       
    77 
       
    78 #ifndef Q_ODBC_VERSION_2
       
    79 #include <sqlucode.h>
       
    80 #endif
       
    81 
       
    82 #include <sqlext.h>
       
    83 
       
    84 QT_BEGIN_HEADER
       
    85 
       
    86 QT_BEGIN_NAMESPACE
       
    87 
       
    88 class QODBCPrivate;
       
    89 class QODBCDriverPrivate;
       
    90 class QODBCDriver;
       
    91 class QSqlRecordInfo;
       
    92 
       
    93 class QODBCResult : public QSqlResult
       
    94 {
       
    95 public:
       
    96     QODBCResult(const QODBCDriver * db, QODBCDriverPrivate* p);
       
    97     virtual ~QODBCResult();
       
    98 
       
    99     bool prepare(const QString& query);
       
   100     bool exec();
       
   101 
       
   102     QVariant handle() const;
       
   103     virtual void setForwardOnly(bool forward);
       
   104 
       
   105 protected:
       
   106     bool fetchNext();
       
   107     bool fetchFirst();
       
   108     bool fetchLast();
       
   109     bool fetchPrevious();
       
   110     bool fetch(int i);
       
   111     bool reset (const QString& query);
       
   112     QVariant data(int field);
       
   113     bool isNull(int field);
       
   114     int size();
       
   115     int numRowsAffected();
       
   116     QSqlRecord record() const;
       
   117     void virtual_hook(int id, void *data);
       
   118     bool nextResult();
       
   119 
       
   120 private:
       
   121     QODBCPrivate *d;
       
   122 };
       
   123 
       
   124 class Q_EXPORT_SQLDRIVER_ODBC QODBCDriver : public QSqlDriver
       
   125 {
       
   126     Q_OBJECT
       
   127 public:
       
   128     explicit QODBCDriver(QObject *parent=0);
       
   129     QODBCDriver(SQLHANDLE env, SQLHANDLE con, QObject * parent=0);
       
   130     virtual ~QODBCDriver();
       
   131     bool hasFeature(DriverFeature f) const;
       
   132     void close();
       
   133     QSqlResult *createResult() const;
       
   134     QStringList tables(QSql::TableType) const;
       
   135     QSqlRecord record(const QString& tablename) const;
       
   136     QSqlIndex primaryIndex(const QString& tablename) const;
       
   137     QVariant handle() const;
       
   138     QString formatValue(const QSqlField &field,
       
   139                         bool trimStrings) const;
       
   140     bool open(const QString& db,
       
   141               const QString& user,
       
   142               const QString& password,
       
   143               const QString& host,
       
   144               int port,
       
   145               const QString& connOpts);
       
   146 
       
   147     QString escapeIdentifier(const QString &identifier, IdentifierType type) const;
       
   148 
       
   149 protected Q_SLOTS:
       
   150     bool isIdentifierEscapedImplementation(const QString &identifier, IdentifierType type) const;
       
   151 
       
   152 protected:
       
   153     bool beginTransaction();
       
   154     bool commitTransaction();
       
   155     bool rollbackTransaction();
       
   156 
       
   157 private:
       
   158     void init();
       
   159     bool endTrans();
       
   160     void cleanup();
       
   161     QODBCDriverPrivate* d;
       
   162     friend class QODBCPrivate;
       
   163 };
       
   164 
       
   165 QT_END_NAMESPACE
       
   166 
       
   167 QT_END_HEADER
       
   168 
       
   169 #endif // QSQL_ODBC_H