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727 lines
16 KiB
727 lines
16 KiB
/* This file is part of the KDE project
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Copyright (C) 2002 Lucijan Busch <lucijan@gmx.at>
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Copyright (C) 2002 Joseph Wenninger <jowenn@kde.org>
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Copyright (C) 2003-2006 Jaroslaw Staniek <js@iidea.pl>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "field.h"
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#include "connection.h"
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#include "driver.h"
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#include "expression.h"
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#include "utils.h"
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// we use here i18n() but this depends on kde libs: TODO: add #ifdefs
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#include <kdebug.h>
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#include <klocale.h>
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#include <qdatetime.h>
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#include <assert.h>
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using namespace KexiDB;
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Field::FieldTypeNames Field::m_typeNames;
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Field::FieldTypeGroupNames Field::m_typeGroupNames;
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Field::Field()
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{
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init();
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setConstraints(NoConstraints);
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}
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Field::Field(TableSchema *tableSchema)
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{
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init();
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m_parent = tableSchema;
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m_order = tableSchema->fieldCount();
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setConstraints(NoConstraints);
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}
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Field::Field(QuerySchema *querySchema, BaseExpr* expr)
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{
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init();
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m_parent = querySchema;
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m_order = querySchema->fieldCount();
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setConstraints(NoConstraints);
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if (expr)
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setExpression(expr);
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}
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Field::Field(const QString& name, Type ctype,
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uint cconst, uint options, uint length, uint precision,
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QVariant defaultValue, const QString& caption, const QString& description,
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uint width)
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: m_parent(0)
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,m_name(name.lower())
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,m_length(length)
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,m_precision(precision)
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,m_visibleDecimalPlaces(-1)
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,m_options(options)
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,m_defaultValue(defaultValue)
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,m_order(-1)
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,m_caption(caption)
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,m_desc(description)
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,m_width(width)
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,m_expr(0)
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,m_customProperties(0)
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,m_type(ctype)
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{
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setConstraints(cconst);
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if (m_length==0) {//0 means default length:
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if (m_type==Field::Text)
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m_length = defaultTextLength();
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}
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}
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/*! Copy constructor. */
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Field::Field(const Field& f)
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{
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(*this) = f;
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if (f.m_customProperties)
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m_customProperties = new CustomPropertiesMap( f.customProperties() );
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if (f.m_expr) {//deep copy the expression
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//TODO m_expr = new BaseExpr(*f.m_expr);
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// m_expr->m_field = this;
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} else
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m_expr = 0;
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}
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Field::~Field()
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{
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delete m_expr;
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delete m_customProperties;
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}
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Field* Field::copy() const
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{
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return new Field(*this);
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}
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void Field::init()
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{
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m_parent = 0;
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m_name = "";
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m_type = InvalidType;
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m_length = 0;
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m_precision = 0;
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m_visibleDecimalPlaces = -1;
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m_options = NoOptions;
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m_defaultValue = QVariant(QString::null);
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m_order = -1;
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m_width = 0;
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m_expr = 0;
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m_customProperties = 0;
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}
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Field::Type Field::type() const
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{
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if (m_expr)
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return m_expr->type();
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return m_type;
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}
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QVariant::Type Field::variantType(uint type)
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{
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switch(type)
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{
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case Byte:
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case ShortInteger:
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case Integer:
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case BigInteger:
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return QVariant::Int;
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case Boolean:
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return QVariant::Bool;
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case Date:
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return QVariant::Date;
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case DateTime:
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return QVariant::DateTime;
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case Time:
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return QVariant::Time;
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case Float:
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case Double:
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return QVariant::Double;
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case Text:
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case LongText:
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return QVariant::String;
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case BLOB:
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return QVariant::ByteArray;
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default:
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return QVariant::Invalid;
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}
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return QVariant::Invalid;
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}
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QString Field::typeName(uint type)
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{
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m_typeNames.init();
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return (type <= LastType) ? m_typeNames.at(type) : QString::number(type);
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}
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QString Field::typeString(uint type)
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{
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m_typeNames.init();
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return (type <= LastType) ? m_typeNames.at((int)LastType+1 + type) : QString("Type%1").arg(type);
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}
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QString Field::typeGroupName(uint typeGroup)
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{
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m_typeGroupNames.init();
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return (typeGroup <= LastTypeGroup) ? m_typeGroupNames.at(typeGroup) : typeGroupString(typeGroup);
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}
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QString Field::typeGroupString(uint typeGroup)
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{
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m_typeGroupNames.init();
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return (typeGroup <= LastTypeGroup) ? m_typeGroupNames.at((int)LastTypeGroup+1 + typeGroup) : QString("TypeGroup%1").arg(typeGroup);
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}
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Field::Type Field::typeForString(const QString& typeString)
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{
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m_typeNames.init();
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QMap<QString,Type>::ConstIterator it = m_typeNames.str2num.find(typeString.lower());
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if (it==m_typeNames.str2num.end())
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return InvalidType;
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return it.data();
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}
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Field::TypeGroup Field::typeGroupForString(const QString& typeGroupString)
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{
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m_typeGroupNames.init();
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QMap<QString,TypeGroup>::ConstIterator it = m_typeGroupNames.str2num.find(typeGroupString.lower());
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if (it==m_typeGroupNames.str2num.end())
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return InvalidGroup;
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return it.data();
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}
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bool Field::isIntegerType( uint type )
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{
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switch (type) {
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case Field::Byte:
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case Field::ShortInteger:
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case Field::Integer:
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case Field::BigInteger:
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return true;
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default:;
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}
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return false;
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}
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bool Field::isNumericType( uint type )
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{
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switch (type) {
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case Field::Byte:
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case Field::ShortInteger:
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case Field::Integer:
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case Field::BigInteger:
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case Field::Float:
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case Field::Double:
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return true;
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default:;
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}
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return false;
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}
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bool Field::isFPNumericType( uint type )
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{
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return type==Field::Float || type==Field::Double;
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}
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bool Field::isDateTimeType(uint type)
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{
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switch (type) {
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case Field::Date:
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case Field::DateTime:
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case Field::Time:
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return true;
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default:;
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}
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return false;
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}
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bool Field::isTextType( uint type )
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{
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switch (type) {
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case Field::Text:
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case Field::LongText:
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return true;
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default:;
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}
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return false;
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}
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bool Field::hasEmptyProperty(uint type)
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{
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return Field::isTextType(type) || type==BLOB;
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}
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bool Field::isAutoIncrementAllowed(uint type)
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{
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return Field::isIntegerType(type);
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}
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Field::TypeGroup Field::typeGroup(uint type)
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{
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if (Field::isTextType(type))
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return TextGroup;
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else if (Field::isIntegerType(type))
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return IntegerGroup;
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else if (Field::isFPNumericType(type))
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return FloatGroup;
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else if (type==Boolean)
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return BooleanGroup;
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else if (Field::isDateTimeType(type))
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return DateTimeGroup;
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else if (type==BLOB)
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return BLOBGroup;
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return InvalidGroup; //unknown
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}
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TableSchema*
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Field::table() const
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{
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return dynamic_cast<TableSchema*>(m_parent);
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}
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void
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Field::setTable(TableSchema *tableSchema)
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{
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m_parent = tableSchema;
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}
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QuerySchema*
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Field::query() const
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{
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return dynamic_cast<QuerySchema*>(m_parent);
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}
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void
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Field::setQuery(QuerySchema *querySchema)
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{
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m_parent = querySchema;
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}
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void
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Field::setName(const QString& n)
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{
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m_name = n.lower();
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}
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void
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Field::setType(Type t)
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{
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if (m_expr) {
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KexiDBWarn << QString("Field::setType(%1)").arg(t)
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<< " could not set type because the field has expression assigned!" << endl;
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return;
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}
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m_type = t;
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}
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void
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Field::setConstraints(uint c)
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{
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m_constraints = c;
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//pkey must be unique notnull
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if (isPrimaryKey()) {
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setPrimaryKey(true);
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}
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if (isIndexed()) {
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setIndexed(true);
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}
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if (isAutoIncrement() && !isAutoIncrementAllowed()) {
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setAutoIncrement(false);
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}
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}
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void
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Field::setLength(uint l)
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{
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if (type()!=Field::Text)
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return;
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m_length = l;
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}
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void
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Field::setPrecision(uint p)
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{
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if (!isFPNumericType())
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return;
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m_precision = p;
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}
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void
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Field::setScale(uint s)
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{
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if (!isFPNumericType())
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return;
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m_length = s;
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}
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void
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Field::setVisibleDecimalPlaces(int p)
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{
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if (!KexiDB::supportsVisibleDecimalPlacesProperty(type()))
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return;
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m_visibleDecimalPlaces = p < 0 ? -1 : p;
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}
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void
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Field::setUnsigned(bool u)
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{
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m_options |= Unsigned;
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m_options ^= (!u * Unsigned);
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}
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void
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Field::setDefaultValue(const QVariant& def)
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{
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m_defaultValue = def;
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}
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bool
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Field::setDefaultValue(const QCString& def)
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{
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if (def.isNull()) {
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m_defaultValue = QVariant();
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return true;
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}
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bool ok;
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switch(type())
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{
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case Byte: {
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unsigned int v = def.toUInt(&ok);
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if (!ok || v > 255)
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m_defaultValue = QVariant();
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else
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m_defaultValue = QVariant(v);
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break;
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}case ShortInteger: {
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int v = def.toInt(&ok);
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if (!ok || (!(m_options & Unsigned) && (v < -32768 || v > 32767)) || ((m_options & Unsigned) && (v < 0 || v > 65535)))
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m_defaultValue = QVariant();
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else
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m_defaultValue = QVariant(v);
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break;
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}case Integer: {//4 bytes
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long v = def.toLong(&ok);
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//js: FIXME if (!ok || (!(m_options & Unsigned) && (-v > 0x080000000 || v > (0x080000000-1))) || ((m_options & Unsigned) && (v < 0 || v > 0x100000000)))
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if (!ok || (!(m_options & Unsigned) && (-v > (int)0x07FFFFFFF || v > (int)(0x080000000-1))))
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m_defaultValue = QVariant();
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else
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m_defaultValue = QVariant((Q_LLONG)v);
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break;
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}case BigInteger: {//8 bytes
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//! @todo BigInteger support
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/*
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Q_LLONG long v = def.toLongLong(&ok);
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//TODO: 2-part decoding
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if (!ok || (!(m_options & Unsigned) && (-v > 0x080000000 || v > (0x080000000-1))))
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m_defaultValue = QVariant();
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else
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if (m_options & Unsigned)
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m_defaultValue=QVariant((Q_ULLONG) v);
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else
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m_defaultValue = QVariant((Q_LLONG)v);*/
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break;
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}case Boolean: {
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unsigned short v = def.toUShort(&ok);
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if (!ok || v > 1)
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m_defaultValue = QVariant();
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else
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m_defaultValue = QVariant((bool)v);
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break;
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}case Date: {//YYYY-MM-DD
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QDate date = QDate::fromString( def, Qt::ISODate );
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if (!date.isValid())
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m_defaultValue = QVariant();
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else
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m_defaultValue = QVariant(date);
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break;
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}case DateTime: {//YYYY-MM-DDTHH:MM:SS
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QDateTime dt = QDateTime::fromString( def, Qt::ISODate );
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if (!dt.isValid())
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m_defaultValue = QVariant();
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else
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m_defaultValue = QVariant(dt);
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break;
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}case Time: {//HH:MM:SS
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QTime time = QTime::fromString( def, Qt::ISODate );
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if (!time.isValid())
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m_defaultValue = QVariant();
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else
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m_defaultValue = QVariant(time);
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break;
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}case Float: {
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float v = def.toFloat(&ok);
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if (!ok || ((m_options & Unsigned) && (v < 0.0)))
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m_defaultValue = QVariant();
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else
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m_defaultValue = QVariant(v);
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break;
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}case Double: {
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double v = def.toDouble(&ok);
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if (!ok || ((m_options & Unsigned) && (v < 0.0)))
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m_defaultValue = QVariant();
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else
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m_defaultValue = QVariant(v);
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break;
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}case Text: {
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if (def.isNull() || (def.length() > 255))
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m_defaultValue = QVariant();
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else
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m_defaultValue = QVariant((QString)def);
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break;
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}case LongText: {
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if (def.isNull())
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m_defaultValue = QVariant();
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else
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m_defaultValue = QVariant((QString)def);
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break;
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}case BLOB: {
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//TODO
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if (def.isNull())
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m_defaultValue = QVariant();
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else
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m_defaultValue = QVariant(def);
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break;
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}default:
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m_defaultValue = QVariant();
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}
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return m_defaultValue.isNull();
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}
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void
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Field::setAutoIncrement(bool a)
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{
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if (a && !isAutoIncrementAllowed())
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return;
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if (isAutoIncrement() != a)
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m_constraints = static_cast<Field::Constraints>(m_constraints ^ Field::AutoInc);
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}
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void
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Field::setPrimaryKey(bool p)
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{
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if(isPrimaryKey() != p)
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m_constraints = static_cast<Field::Constraints>(m_constraints ^ Field::PrimaryKey);
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if (p) {//also set implied constraints
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setUniqueKey(true);
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setNotNull(true);
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setNotEmpty(true);
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setIndexed(true);
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}
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else {
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//! \todo is this ok for all engines?
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setAutoIncrement(false);
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}
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}
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void
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Field::setUniqueKey(bool u)
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{
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if(isUniqueKey() != u) {
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m_constraints = static_cast<Field::Constraints>(m_constraints ^ Field::Unique);
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if (u)
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setNotNull(true);
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}
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}
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void
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Field::setForeignKey(bool f)
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{
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if (isForeignKey() != f)
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m_constraints = static_cast<Field::Constraints>(m_constraints ^ Field::ForeignKey);
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}
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void
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Field::setNotNull(bool n)
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{
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if (isNotNull() != n)
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m_constraints = static_cast<Field::Constraints>(m_constraints ^ Field::NotNull);
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}
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void Field::setNotEmpty(bool n)
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{
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if (isNotEmpty() != n)
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m_constraints = static_cast<Field::Constraints>(m_constraints ^ Field::NotEmpty);
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}
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void Field::setIndexed(bool s)
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{
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if (isIndexed() != s)
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m_constraints = static_cast<Field::Constraints>(m_constraints ^ Field::Indexed);
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if (!s) {//also set implied constraints
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setPrimaryKey(false);
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setUniqueKey(false);
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setNotNull(false);
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setNotEmpty(false);
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}
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}
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QString Field::debugString() const
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{
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KexiDB::Connection *conn = table() ? table()->connection() : 0;
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|
QString dbg = (m_name.isEmpty() ? "<NONAME> " : m_name + " ");
|
|
if (m_options & Field::Unsigned)
|
|
dbg += " UNSIGNED ";
|
|
dbg += (conn && conn->driver()) ? conn->driver()->sqlTypeName(type()) : Driver::defaultSQLTypeName(type());
|
|
if (isFPNumericType() && m_precision>0) {
|
|
if (scale()>0)
|
|
dbg += QString::fromLatin1("(%1,%2)").arg(m_precision).arg(scale());
|
|
else
|
|
dbg += QString::fromLatin1("(%1)").arg(m_precision);
|
|
}
|
|
else if (m_type==Field::Text && m_length>0)
|
|
dbg += QString::fromLatin1("(%1)").arg(m_length);
|
|
if (m_constraints & Field::AutoInc)
|
|
dbg += " AUTOINC";
|
|
if (m_constraints & Field::Unique)
|
|
dbg += " UNIQUE";
|
|
if (m_constraints & Field::PrimaryKey)
|
|
dbg += " PKEY";
|
|
if (m_constraints & Field::ForeignKey)
|
|
dbg += " FKEY";
|
|
if (m_constraints & Field::NotNull)
|
|
dbg += " NOTNULL";
|
|
if (m_constraints & Field::NotEmpty)
|
|
dbg += " NOTEMPTY";
|
|
if (!m_defaultValue.isNull())
|
|
dbg += QString(" DEFAULT=[%1]").arg(m_defaultValue.typeName()) + KexiDB::variantToString(m_defaultValue);
|
|
if (m_expr)
|
|
dbg += " EXPRESSION=" + m_expr->debugString();
|
|
if (m_customProperties && !m_customProperties->isEmpty()) {
|
|
dbg += QString(" CUSTOM PROPERTIES (%1): ").arg(m_customProperties->count());
|
|
bool first = true;
|
|
foreach (CustomPropertiesMap::ConstIterator, it, *m_customProperties) {
|
|
if (first)
|
|
first = false;
|
|
else
|
|
dbg += ", ";
|
|
dbg += QString("%1 = %2 (%3)").arg(it.key()).arg(it.data().toString()).arg(it.data().typeName());
|
|
}
|
|
}
|
|
return dbg;
|
|
}
|
|
|
|
void Field::debug()
|
|
{
|
|
KexiDBDbg << debugString() << endl;
|
|
}
|
|
|
|
void Field::setExpression(KexiDB::BaseExpr *expr)
|
|
{
|
|
assert(!m_parent || dynamic_cast<QuerySchema*>(m_parent));
|
|
if (m_expr==expr)
|
|
return;
|
|
if (m_expr) {
|
|
delete m_expr;
|
|
}
|
|
m_expr = expr;
|
|
}
|
|
|
|
QVariant Field::customProperty(const QCString& propertyName,
|
|
const QVariant& defaultValue) const
|
|
{
|
|
if (!m_customProperties)
|
|
return defaultValue;
|
|
CustomPropertiesMap::ConstIterator it(m_customProperties->find(propertyName));
|
|
if (it==m_customProperties->constEnd())
|
|
return defaultValue;
|
|
return it.data();
|
|
}
|
|
|
|
void Field::setCustomProperty(const QCString& propertyName, const QVariant& value)
|
|
{
|
|
if (propertyName.isEmpty())
|
|
return;
|
|
if (!m_customProperties)
|
|
m_customProperties = new CustomPropertiesMap();
|
|
m_customProperties->insert(propertyName, value);
|
|
}
|
|
|
|
//-------------------------------------------------------
|
|
#define ADDTYPE(type, i18, str) this->at(Field::type) = i18; \
|
|
this->at(Field::type+Field::LastType+1) = str; \
|
|
str2num.insert(QString::fromLatin1(str).lower(), type)
|
|
#define ADDGROUP(type, i18, str) this->at(Field::type) = i18; \
|
|
this->at(Field::type+Field::LastTypeGroup+1) = str; \
|
|
str2num.insert(QString::fromLatin1(str).lower(), type)
|
|
|
|
Field::FieldTypeNames::FieldTypeNames()
|
|
: QValueVector<QString>()
|
|
, m_initialized(false)
|
|
{
|
|
}
|
|
|
|
void Field::FieldTypeNames::init()
|
|
{
|
|
if (m_initialized)
|
|
return;
|
|
m_initialized = true;
|
|
resize((Field::LastType + 1)*2);
|
|
|
|
ADDTYPE( InvalidType, i18n("Invalid Type"), "InvalidType" );
|
|
ADDTYPE( Byte, i18n("Byte"), "Byte" );
|
|
ADDTYPE( ShortInteger, i18n("Short Integer Number"), "ShortInteger" );
|
|
ADDTYPE( Integer, i18n("Integer Number"), "Integer" );
|
|
ADDTYPE( BigInteger, i18n("Big Integer Number"), "BigInteger" );
|
|
ADDTYPE( Boolean, i18n("Yes/No Value"), "Boolean" );
|
|
ADDTYPE( Date, i18n("Date"), "Date" );
|
|
ADDTYPE( DateTime, i18n("Date and Time"), "DateTime" );
|
|
ADDTYPE( Time, i18n("Time"), "Time" );
|
|
ADDTYPE( Float, i18n("Single Precision Number"), "Float" );
|
|
ADDTYPE( Double, i18n("Double Precision Number"), "Double" );
|
|
ADDTYPE( Text, i18n("Text"), "Text" );
|
|
ADDTYPE( LongText, i18n("Long Text"), "LongText" );
|
|
ADDTYPE( BLOB, i18n("Object"), "BLOB" );
|
|
}
|
|
|
|
//-------------------------------------------------------
|
|
|
|
Field::FieldTypeGroupNames::FieldTypeGroupNames()
|
|
: QValueVector<QString>()
|
|
, m_initialized(false)
|
|
{
|
|
}
|
|
|
|
void Field::FieldTypeGroupNames::init()
|
|
{
|
|
if (m_initialized)
|
|
return;
|
|
m_initialized = true;
|
|
resize((Field::LastTypeGroup + 1)*2);
|
|
|
|
ADDGROUP( InvalidGroup, i18n("Invalid Group"), "InvalidGroup" );
|
|
ADDGROUP( TextGroup, i18n("Text"), "TextGroup" );
|
|
ADDGROUP( IntegerGroup, i18n("Integer Number"), "IntegerGroup" );
|
|
ADDGROUP( FloatGroup, i18n("Floating Point Number"), "FloatGroup" );
|
|
ADDGROUP( BooleanGroup, i18n("Yes/No"), "BooleanGroup" );
|
|
ADDGROUP( DateTimeGroup, i18n("Date/Time"), "DateTimeGroup" );
|
|
ADDGROUP( BLOBGroup, i18n("Object"), "BLOBGroup" );
|
|
}
|
|
|
|
//-------------------------------------------------------
|
|
|