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)

     6 **

     7 ** This file is part of the QtSql module of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    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.

    23 **

    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.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

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    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #ifndef QSQLFIELD_H

    43 #define QSQLFIELD_H

    44 

    45 #include <QtCore/qvariant.h>

    46 #include <QtCore/qstring.h>

    47 

    48 QT_BEGIN_HEADER

    49 

    50 QT_BEGIN_NAMESPACE

    51 

    52 QT_MODULE(Sql)

    53 

    54 class QSqlFieldPrivate;

    55 

    56 class Q_SQL_EXPORT QSqlField

    57 {

    58 public:

    59     enum RequiredStatus { Unknown = -1, Optional = 0, Required = 1 };

    60 

    61     QSqlField(const QString& fieldName = QString(),

    62               QVariant::Type type = QVariant::Invalid);

    63 

    64     QSqlField(const QSqlField& other);

    65     QSqlField& operator=(const QSqlField& other);

    66     bool operator==(const QSqlField& other) const;

    67     inline bool operator!=(const QSqlField &other) const { return !operator==(other); }

    68     ~QSqlField();

    69 

    70     void setValue(const QVariant& value);

    71     inline QVariant value() const

    72     { return val; }

    73     void setName(const QString& name);

    74     QString name() const;

    75     bool isNull() const;

    76     void setReadOnly(bool readOnly);

    77     bool isReadOnly() const;

    78     void clear();

    79     QVariant::Type type() const;

    80     bool isAutoValue() const;

    81 

    82     void setType(QVariant::Type type);

    83     void setRequiredStatus(RequiredStatus status);

    84     inline void setRequired(bool required)

    85     { setRequiredStatus(required ? Required : Optional); }

    86     void setLength(int fieldLength);

    87     void setPrecision(int precision);

    88     void setDefaultValue(const QVariant &value);

    89     void setSqlType(int type);

    90     void setGenerated(bool gen);

    91     void setAutoValue(bool autoVal);

    92 

    93     RequiredStatus requiredStatus() const;

    94     int length() const;

    95     int precision() const;

    96     QVariant defaultValue() const;

    97     int typeID() const;

    98     bool isGenerated() const;

    99     bool isValid() const;

   100 

   101 #ifdef QT3_SUPPORT

   102     inline QT3_SUPPORT void setNull() { clear(); }

   103 #endif

   104 

   105 private:

   106     void detach();

   107     QVariant val;

   108     QSqlFieldPrivate* d;

   109 };

   110 

   111 #ifndef QT_NO_DEBUG_STREAM

   112 Q_SQL_EXPORT QDebug operator<<(QDebug, const QSqlField &);

   113 #endif

   114 

   115 QT_END_NAMESPACE

   116 

   117 QT_END_HEADER

   118 

   119 #endif // QSQLFIELD_H