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XdlOrm/include/QxDataMember/IxDataMember.h
2026-04-03 11:32:07 +08:00

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17 KiB
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/****************************************************************************
**
** https://www.qxorm.com/
** Copyright (C) 2013 XDL Team (ic-east.com)
**
** This file is part of the QxOrm library
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any
** damages arising from the use of this software
**
** Commercial Usage
** Licensees holding valid commercial QxOrm licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and XDL Team
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file 'license.gpl3.txt' included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met : http://www.gnu.org/copyleft/gpl.html
**
** If you are unsure which license is appropriate for your use, or
** if you have questions regarding the use of this file, please contact :
** ic-east.com
**
****************************************************************************/
#ifndef _IX_DATA_MEMBER_H_
#define _IX_DATA_MEMBER_H_
#ifdef _MSC_VER
#pragma once
#endif
/*!
* \file IxDataMember.h
* \author XDL Team
* \ingroup QxDataMember
* \brief Common interface for all class properties registered into QxOrm context
*/
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4996)
#endif // _MSC_VER
#include <QtCore/qmutex.h>
#include <QtSql/qsqlquery.h>
#ifndef _QX_NO_JSON
#include <QtCore/qjsonvalue.h>
#endif // _QX_NO_JSON
#include <QxCommon/QxAny.h>
#include <QxCommon/QxBool.h>
#include <QxCommon/QxPropertyBag.h>
#include <QxCollection/QxCollection.h>
#include <QxSerialize/boost/QxSerializeInclude.h>
#include <QxConvert/QxConvert.h>
#ifdef _MSC_VER
#pragma warning(pop)
#endif // _MSC_VER
#define QX_IX_DATA_MEMBER_PURE_VIRTUAL_ARCHIVE(ArchiveInput, ArchiveOutput) \
virtual void toArchive(const void *pOwner, ArchiveOutput &ar) const = 0; \
virtual void fromArchive(void *pOwner, ArchiveInput &ar) = 0;
namespace qx
{
class IxDataMemberX;
class IxSqlRelation;
class IxSqlQueryBuilder;
struct IxDataMemberSqlCallbackParams;
namespace dao
{
namespace detail
{
class IxDao_Helper;
} // namespace detail
} // namespace dao
/*!
* \ingroup QxDataMember
* \brief qx::IxDataMember : common interface for all class properties registered into QxOrm context
*/
class QX_DLL_EXPORT IxDataMember : public qx::QxPropertyBag
{
template <typename DataType, class Owner>
friend class QxDataMember;
public:
typedef std::function<void(IxDataMemberSqlCallbackParams &)> type_fct_sql_callback;
private:
struct IxDataMemberImpl;
std::unique_ptr<IxDataMemberImpl> m_pImpl; //!< Private implementation idiom
static QMutex m_mutex; //!< Mutex => qx::IxDataMember is thread-safe
public:
IxDataMember(const QString &sKey, long lVersion, bool bSerialize, bool bDao, IxDataMember *pImpl);
virtual ~IxDataMember() = 0;
QString getKey() const;
QString getName() const;
int getNameCount() const;
QString getNameParent() const;
const char *getNamePtr() const;
QString getDescription() const;
QString getFormat() const;
long getVersion() const;
bool getSerialize() const;
bool getDao() const;
QVariant getDefaultValue() const;
QVariant getMinValue() const;
QVariant getMaxValue() const;
int getPrecision() const;
int getMinLength() const;
int getMaxLength() const;
bool getRequired() const;
bool getReadOnly() const;
bool getAutoIncrement() const;
bool getNotNull() const;
bool getIsPrimaryKey() const;
bool getIsIndex() const;
bool getIsUnique() const;
IxDataMemberX *getParent() const;
IxSqlRelation *getSqlRelation() const;
bool hasSqlRelation() const;
bool getAccessDataPointer() const;
virtual QString getType() const;
QString getTypeParent() const;
IxDataMember *getPImpl() const;
void setName(const QString &s);
void setNameParent(const QString &s);
void setDescription(const QString &s);
void setFormat(const QString &s);
void setSqlType(const QString &s);
void setSqlAlias(const QString &s);
void setVersion(long l);
void setSerialize(bool b);
void setDao(bool b);
void setDefaultValue(const QVariant &v);
void setPrecision(int i);
void setRequired(bool b);
void setReadOnly(bool b);
void setAutoIncrement(bool b);
void setIsPrimaryKey(bool b);
void setIsIndex(bool b);
void setIsUnique(bool b);
void setParent(IxDataMemberX *p);
void setSqlRelation(IxSqlRelation *p);
void setAccessDataPointer(bool b);
void setMinValue(long lMinValue, const QString &sMessage = QString());
void setMinValue(double dMinValue, const QString &sMessage = QString());
void setMaxValue(long lMaxValue, const QString &sMessage = QString());
void setMaxValue(double dMaxValue, const QString &sMessage = QString());
void setMinLength(int iMinLength, const QString &sMessage = QString());
void setMaxLength(int iMaxLength, const QString &sMessage = QString());
void setNotNull(bool bNotNull, const QString &sMessage = QString());
bool isThereRelationPartOfPrimaryKey(int iIndexNamePK, IxSqlRelation *&pRelation, int &iIndexNameFK) const;
bool isPartOfPrimaryKey(int iIndexNameFK, IxDataMember *&pPrimaryKey, int &iIndexNamePK) const;
void setRelationPartOfPrimaryKey(int iIndexNamePK, IxSqlRelation *pRelation, int iIndexNameFK);
void setPartOfPrimaryKey(int iIndexNameFK, IxDataMember *pPrimaryKey, int iIndexNamePK);
QString getName(int iIndex, const QString &sOtherName = QString()) const;
QString getSqlAlias(const QString &sTable = QString(), bool bClauseWhere = false, int iIndexName = 0, qx::IxSqlQueryBuilder *pSqlQueryBuilder = NULL) const;
QString getSqlType(int iIndexName = -1) const;
QString getSqlTypeAndParams(int iIndexName = -1) const;
QString getSqlPlaceHolder(const QString &sAppend = QString(), int iIndexName = 0, const QString &sSep = QString(", "), const QString &sOtherName = QString(), bool bCheckFKPartOfPK = false) const;
void setSqlPlaceHolder(QSqlQuery &query, void *pOwner, const QString &sAppend = QString(), const QString &sOtherName = QString(), bool bCheckFKPartOfPK = false, qx::QxCollection<QString, QVariantList> *pLstExecBatch = NULL) const;
QString getSqlAliasEqualToPlaceHolder(const QString &sTable = QString(), bool bClauseWhere = false, const QString &sAppend = QString(), const QString &sSep = QString(" AND "), bool bCheckFKPartOfPK = false, qx::IxSqlQueryBuilder *pSqlQueryBuilder = NULL) const;
QString getSqlNameEqualToPlaceHolder(const QString &sAppend = QString(), const QString &sSep = QString(" AND "), bool bCheckFKPartOfPK = false, qx::IxSqlQueryBuilder *pSqlQueryBuilder = NULL) const;
QString getSqlTablePointNameAsAlias(const QString &sTable, const QString &sSep = QString(", "), const QString &sSuffixAlias = QString(), bool bCheckFKPartOfPK = false, const QString &sCustomAlias = QString(), qx::IxSqlQueryBuilder *pSqlQueryBuilder = NULL) const;
QString getSqlName(const QString &sSep = QString(", "), const QString &sOtherName = QString(), bool bCheckFKPartOfPK = false, qx::IxSqlQueryBuilder *pSqlQueryBuilder = NULL) const;
QString getSqlNameAndTypeAndParams(const QString &sSep = QString(", "), const QString &sOtherName = QString(), bool bCheckFKPartOfPK = false) const;
void customGetSqlName(type_fct_sql_callback fct);
void customGetSqlTablePointNameAsAlias(type_fct_sql_callback fct);
void customGetSqlNameEqualToPlaceHolder(type_fct_sql_callback fct);
void customGetSqlAliasEqualToPlaceHolder(type_fct_sql_callback fct);
void customGetSqlAlias(type_fct_sql_callback fct);
static QString getSqlFromTable(const QString &sTable, const QString &sCustomAlias = QString());
static QString getSqlTableName(const QString &sTable);
static QString getSqlColumnName(const QString &sColumn);
static QString getSqlTableNameAlias(const QString &sTable);
static QString getSqlColumnNameAlias(const QString &sColumn);
virtual bool isEqual(const void *pOwner1, const void *pOwner2) const = 0;
virtual QVariant toVariant(const void *pOwner, const QString &sFormat, int iIndexName = -1, qx::cvt::context::ctx_type ctx = qx::cvt::context::e_no_context) const = 0;
virtual qx_bool fromVariant(void *pOwner, const QVariant &v, const QString &sFormat, int iIndexName = -1, qx::cvt::context::ctx_type ctx = qx::cvt::context::e_no_context) = 0;
QVariant toVariant(const void *pOwner, int iIndexName = -1, qx::cvt::context::ctx_type ctx = qx::cvt::context::e_no_context) const;
qx_bool fromVariant(void *pOwner, const QVariant &v, int iIndexName = -1, qx::cvt::context::ctx_type ctx = qx::cvt::context::e_no_context);
#ifndef _QX_NO_JSON
virtual QJsonValue toJson(const void *pOwner, const QString &sFormat) const = 0;
virtual qx_bool fromJson(void *pOwner, const QJsonValue &j, const QString &sFormat) = 0;
QJsonValue toJson(const void *pOwner) const;
qx_bool fromJson(void *pOwner, const QJsonValue &j);
#endif // _QX_NO_JSON
protected:
virtual qx::any getDataPtr(const void *pOwner) const = 0;
virtual qx::any getDataPtr(void *pOwner) = 0;
virtual void *getDataVoidPtr(const void *pOwner) const = 0;
virtual void *getDataVoidPtr(void *pOwner) = 0;
public:
qx::any getValueAnyPtr(const void *pOwner) const { return this->getDataPtr(pOwner); }
qx::any getValueAnyPtr(void *pOwner) { return this->getDataPtr(pOwner); }
void *getValueVoidPtr(const void *pOwner) const { return this->getDataVoidPtr(pOwner); }
void *getValueVoidPtr(void *pOwner) { return this->getDataVoidPtr(pOwner); }
template <typename T>
T *getValuePtr(void *pOwner, bool *bOk = NULL)
{
if (bOk)
{
(*bOk) = false;
}
if (!getAccessDataPointer())
{
qDebug("[QxOrm] qx::IxDataMember::getValuePtr<T>() : '%s'", "cannot access data-member pointer");
return NULL;
}
qx::any a = this->getDataPtr(pOwner);
try
{
T *t = qx::any_cast<T *>(a);
if (bOk)
{
(*bOk) = (t != NULL);
};
return t;
}
catch (const qx::bad_any_cast &err)
{
Q_UNUSED(err);
qDebug("[QxOrm] qx::IxDataMember::getValuePtr<T>() : '%s'", "bad any cast exception");
return NULL;
}
catch (...)
{
qDebug("[QxOrm] qx::IxDataMember::getValuePtr<T>() : '%s'", "unknown cast exception");
return NULL;
}
}
template <typename T>
T getValue(void *pOwner, bool *bOk = NULL)
{
if (!getAccessDataPointer())
{
return qxCannotAccessDataPointer<T, 0>::getValue(this, pOwner, bOk);
}
T *t = this->getValuePtr<T>(pOwner, bOk);
return (t ? (*t) : T());
}
template <typename T>
bool setValue(void *pOwner, const T &val)
{
if (!getAccessDataPointer())
{
return qxCannotAccessDataPointer<T, 0>::setValue(this, pOwner, val);
}
T *t = this->getValuePtr<T>(pOwner);
if (t)
{
(*t) = val;
}
return (t != NULL);
}
private:
template <typename T, int dummy>
struct qxCannotAccessDataPointer
{
static T getValue(IxDataMember *pData, void *pOwner, bool *bOk)
{
Q_UNUSED(pData);
Q_UNUSED(pOwner);
qDebug("[QxOrm] qx::IxDataMember::qxCannotAccessDataPointer<T>::getValue() : '%s'", "type T not supported");
if (bOk)
{
(*bOk) = false;
};
return T();
}
static bool setValue(IxDataMember *pData, void *pOwner, const T &val)
{
Q_UNUSED(pData);
Q_UNUSED(pOwner);
Q_UNUSED(val);
qDebug("[QxOrm] qx::IxDataMember::qxCannotAccessDataPointer<T>::setValue() : '%s'", "type T not supported");
return false;
}
};
template <int dummy>
struct qxCannotAccessDataPointer<QVariant, dummy>
{
static QVariant getValue(IxDataMember *pData, void *pOwner, bool *bOk)
{
if (bOk)
{
(*bOk) = (pData != NULL);
};
return (pData ? pData->toVariant(pOwner, "") : QVariant());
}
static bool setValue(IxDataMember *pData, void *pOwner, const QVariant &val)
{
return (pData ? pData->fromVariant(pOwner, val, "").getValue() : false);
}
};
template <int dummy>
struct qxCannotAccessDataPointer<QString, dummy>
{
static QString getValue(IxDataMember *pData, void *pOwner, bool *bOk)
{
if (bOk)
{
(*bOk) = (pData != NULL);
};
return (pData ? pData->toVariant(pOwner, "").toString() : QString());
}
static bool setValue(IxDataMember *pData, void *pOwner, const QString &val)
{
QVariant tmp(val);
return (pData ? pData->fromVariant(pOwner, tmp, "").getValue() : false);
}
};
public:
#ifdef _QX_ENABLE_BOOST_SERIALIZATION
#if _QX_SERIALIZE_POLYMORPHIC
QX_IX_DATA_MEMBER_PURE_VIRTUAL_ARCHIVE(boost::archive::polymorphic_iarchive, boost::archive::polymorphic_oarchive)
#endif // _QX_SERIALIZE_POLYMORPHIC
#if _QX_SERIALIZE_BINARY
QX_IX_DATA_MEMBER_PURE_VIRTUAL_ARCHIVE(boost::archive::binary_iarchive, boost::archive::binary_oarchive)
#endif // _QX_SERIALIZE_BINARY
#if _QX_SERIALIZE_TEXT
QX_IX_DATA_MEMBER_PURE_VIRTUAL_ARCHIVE(boost::archive::text_iarchive, boost::archive::text_oarchive)
#endif // _QX_SERIALIZE_TEXT
#if _QX_SERIALIZE_XML
QX_IX_DATA_MEMBER_PURE_VIRTUAL_ARCHIVE(boost::archive::xml_iarchive, boost::archive::xml_oarchive)
#endif // _QX_SERIALIZE_XML
#if _QX_SERIALIZE_PORTABLE_BINARY
QX_IX_DATA_MEMBER_PURE_VIRTUAL_ARCHIVE(eos::portable_iarchive, eos::portable_oarchive)
#endif // _QX_SERIALIZE_PORTABLE_BINARY
#if _QX_SERIALIZE_WIDE_BINARY
QX_IX_DATA_MEMBER_PURE_VIRTUAL_ARCHIVE(boost::archive::binary_wiarchive, boost::archive::binary_woarchive)
#endif // _QX_SERIALIZE_WIDE_BINARY
#if _QX_SERIALIZE_WIDE_TEXT
QX_IX_DATA_MEMBER_PURE_VIRTUAL_ARCHIVE(boost::archive::text_wiarchive, boost::archive::text_woarchive)
#endif // _QX_SERIALIZE_WIDE_TEXT
#if _QX_SERIALIZE_WIDE_XML
QX_IX_DATA_MEMBER_PURE_VIRTUAL_ARCHIVE(boost::archive::xml_wiarchive, boost::archive::xml_woarchive)
#endif // _QX_SERIALIZE_WIDE_XML
#endif // _QX_ENABLE_BOOST_SERIALIZATION
private:
#ifdef _QX_ENABLE_BOOST_SERIALIZATION
template <class Archive>
void serialize(Archive &ar, const unsigned int version);
#endif // _QX_ENABLE_BOOST_SERIALIZATION
};
typedef std::shared_ptr<IxDataMember> IxDataMember_ptr;
/*!
* \ingroup QxDataMember
* \brief qx::IxDataMemberSqlCallbackParams : list of parameters used by custom callback functions to override SQL queries generated by QxOrm library
*/
struct IxDataMemberSqlCallbackParams
{
const IxDataMember *pDataMember; //!< The data member instance which calls custom callback function
QString &sSQL; //!< Default value is the SQL generated by QxOrm library for this data member, can be changed by the custom callback function
QString sTable; //!< SQL table name (not always provided)
QString sSep; //!< SQL separator (not always provided)
QString sCustomAlias; //!< SQL custom alias (not always provided)
QString sSuffixAlias; //!< SQL suffix alias (not always provided)
QString sAppend; //!< String to append to SQL query (not always provided)
QString sOtherName; //!< SQL other name for this data member (not always provided)
bool bClauseWhere; //!< Define if we are building SQL in the clause WHERE or not (not always provided)
bool bCheckFKPartOfPK; //!< Check if foreign key is part of primary key (not always provided)
int iIndexName; //!< Index name for composite primary key (not always provided)
qx::dao::detail::IxDao_Helper *pDaoHelper; //!< DAO helper instance
qx::IxSqlQueryBuilder *pSqlQueryBuilder; //!< SQL query builder instance
IxDataMemberSqlCallbackParams(const IxDataMember *p, QString &sql);
~IxDataMemberSqlCallbackParams();
};
} // namespace qx
QX_DLL_EXPORT_INLINE_FCT bool operator<(const qx::IxDataMember &i1, const qx::IxDataMember &i2);
QX_DLL_EXPORT_INLINE_FCT bool operator>(const qx::IxDataMember &i1, const qx::IxDataMember &i2);
#endif // _IX_DATA_MEMBER_H_