DatabaseField.h

/*
╔══════════════════════════════════════════════════════════════════════════════╗
║                        SIMPLY POWERFUL TOOLKIT (SPTK)                        ║
╟──────────────────────────────────────────────────────────────────────────────╢
║  copyright            © 1999-2022 Alexey Parshin. All rights reserved.       ║
║  email                alexeyp@gmail.com                                      ║
╚══════════════════════════════════════════════════════════════════════════════╝
┌──────────────────────────────────────────────────────────────────────────────┐
│   This library 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 library 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 library; if not, write to the Free Software Foundation,    │
│   Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.               │
│                                                                              │
│   Please report all bugs and problems to alexeyp@gmail.com.                  │
└──────────────────────────────────────────────────────────────────────────────┘
*/
 
#pragma once
 
#include <sptk5/sptk.h>
 
#include <sptk5/Field.h>
#include <sptk5/Strings.h>
#include <sptk5/Variant.h>
 
namespace sptk {
 
class SP_EXPORT DatabaseField
    : public Field
{
    friend class Query;
 
public:
    DatabaseField(const String& fieldName, int fieldColumn, int fieldType, VariantDataType dataType, int fieldLength,
                  int fieldScale = 4);
 
    void checkSize(size_t sz);
 
    void setDataSize(size_t sz)
    {
        dataSize(sz);
    }
 
    int fieldColumn() const
    {
        return m_fldColumn;
    }
 
    int fieldType() const
    {
        return m_fldType;
    }
 
    uint32_t fieldSize() const
    {
        return (uint32_t) m_fldSize;
    }
 
    String displayFormat() const
    {
        return m_displayFormat;
    }
 
    void displayFormat(const String& format)
    {
        m_displayFormat = format;
    }
 
    int alignment() const
    {
        return m_alignment;
    }
 
    void alignment(int al)
    {
        m_alignment = al;
    }
 
protected:
    void setFieldType(int fieldType, int fieldLength, int fieldScale)
    {
        m_fldType = fieldType;
        m_fldSize = fieldLength;
        m_fldScale = fieldScale;
    }
 
    String doubleDataToString() const override;
 
private:
    int m_fldType;                
    int m_fldColumn;              
    int m_fldSize;                
    int m_fldScale;               
    String m_displayFormat;       
    int m_alignment {ALIGN_LEFT}; 
};
 
using SDatabaseField = std::shared_ptr<DatabaseField>;
 
} // namespace sptk