ODB关系无法编译

ODB Relationship fails to compile

本文关键字:编译 关系 ODB      更新时间:2023-10-16

我有一个非常简单的关系设置,我无法获得要编译的odb输出,它给了我以下编译器错误。我使用Qt智能指针来实现关系,无论我经历了多少次排列,我似乎总是会遇到同样的错误。

/usr/local/include/odb/database.ixx:570:54: error: no matching function for call to ‘odb::object_traits_impl<Inspection, (odb::database_id)1u>::find(odb::database&, const id_type&)’

这是父类

#ifndef PART_H
#define PART_H
class Part;
#include <odb/core.hxx>
#include <odb/qt/lazy-ptr.hxx>
#include <QtCore/QString>
#include <QtCore/QByteArray>
#include <QtCore/QUuid>
#include <QtCore/QDateTime>
#include <QtCore/QSharedPointer>
#include <QtCore/QList>
#include <QtCore/QSet>
#include "Inspection.h"
/** this class represents the atomic parts which are acquired */
#pragma db object
class Part{
public:
    /** public constructor */
    Part(QString id);
    /** gets the id */
    const QString Id() const;
    /** Get (or create) the inspection for a given system name */
    QSharedPointer<Inspection> GetInspection(QString systemName = "");
private:
    /** constructor */
    Part(){}
    /** odb needed reference */
    friend class odb::access;
    /** a list of all of the inspections for this part */
    //#pragma db value_not_null inverse(parent)
    QList<QSharedPointer<Inspection> > inspections;
    /** holds a unique name/id for this object */
    #pragma db id
    QString id;
};
#endif // PART_H

这是的孩子

#ifndef INSPECTION_H
#define INSPECTION_H
class Inspection;
#include <odb/core.hxx>
#include <odb/qt/lazy-ptr.hxx>
#include <QtCore/QString>
#include <QtCore/QByteArray>
#include <QtCore/QUuid>
#include <QtCore/QDateTime>
#include <QtCore/QSharedPointer>
#include <QtCore/QList>
#include <QtCore/QSet>
//#include "SurfaceDefect.h"
#include "vec2f.h"
#include "Part.h"
#include "MILImage.h"
using namespace std;
#pragma db object
class Inspection{
public:
    /** gets the full image object for this inspection */
    const QWeakPointer<MILImage> GetFullImage() const;
    /** gets the start time of the inspection */
    const QDateTime GetStarted() const;
    /** gets the end time of the inspection */
    const QDateTime GetEnded() const;
    /** Gets the system name on which the inspection was acquired */
    const QString GetSystemName() const;
    /** sets the full image and takes ownership of it */
    void SetFullImage(MILImage* fullImage);
    /** sets the start time of the inspection */
    void SetStarted(QDateTime started);
    /** Sets the end time of the inspection */
    void SetEnded(QDateTime ended);
private:
    /** constructor */
    Inspection(QString systemName);
    /** odb needed reference */
    friend class odb::access;
    /** we give access to the part class to allow for construction */
    friend class Part;
    /** A unique identifier for the inspection */
    #pragma db id
    QUuid id;
    /** the name of the system which acquired the inspection */
    QString systemName;
    /** The time and date the inspection was recorded to disk */
    QDateTime Recorded;
    /** A vector of all defects */
    //#pragma db inverse(Source)
    //QVector< QLazyWeakPointer<SurfaceDefect> > SurfaceDefects;
    /** The username of the person inspecting the sheet */
    QString Username;
    /** All the metadata crammed into one QString */
    QString MetaData;
    /** The positions of the 4 corners of a sheet */
    // TODO: this should not be transient
    #pragma db transient
    Vec2f Corners[4];
    /** The time and date the inspection started */
    QDateTime started;
    /** the time and date the inspection ended */
    QDateTime ended;
    /** the full inspection image */
    #pragma db transient
    QSharedPointer<MILImage> fullImage;
    /** the parent part of this object */
    #pragma db not_null
    QSharedPointer<Part> parent;
};
#endif // INSPECTION_H

任何可以提供的帮助都将是伟大的!

我从一位ODB开发人员那里得到了反馈,他说如果不能像我在Inspection类中那样创建默认构造函数,就会发生这种情况。谢谢Boris!