Erreur dans la table héritée QSqlTableModel

Question

J'ai cette classe qui hérite de QSqlTableModel et elle brise après avoir appelé le slot submitAll(), après avoir appelé insertPoint quelques fois. Voici le code.

Merci pour l'aide.

Cordialement.

#ifndef VWLANDMARKTABLEMODEL_H 
#define VWLANDMARKTABLEMODEL_H 

#include <QSqlTableModel> 

class GraphicsPointLandmarkItem; 

class VWLandmarkTableModel : public QSqlTableModel 
{ 
    Q_OBJECT 
public: 
    enum Column { 
     IdColumn=0, 
     IdImageColumn=1, 
     UsernameColumn=2, 
     NameColumn=3, 
     DefinitionColumn=4 
    }; 

    VWLandmarkTableModel(QObject *parent=0); 

    int idImage() const { return m_idImage; } 
    QString username() const { return m_username; } 
    void setIdImage(int idImage); 
    void setUsername(const QString &username); 
    virtual bool select(); 
    bool insertPoint(GraphicsPointLandmarkItem *item); 
signals: 
protected: 
    virtual void setFilter(const QString &filter) 
     { QSqlTableModel::setFilter(filter); } 
    virtual bool insertRowIntoTable(const QSqlRecord &values); 
protected slots: 
    void setDefaults(int row, QSqlRecord &r); 
private: 
    QString m_username; 
    int m_idImage; 
}; 

#endif // VWLANDMARKTABLEMODEL_H 


#include "vwlandmarktablemodel.h" 

#include <QtGui> 
#include <QtSql> 
#include <QtCore> 

#include "graphicspointlandmarkitem.h" 

VWLandmarkTableModel::VWLandmarkTableModel(QObject *parent) 
    : QSqlTableModel(parent) 
{ 
    setTable("vwLandmark"); 
    setEditStrategy(OnManualSubmit); 

    connect(this, SIGNAL(primeInsert(int,QSqlRecord&)), 
     SLOT(setDefaults(int,QSqlRecord&))); 
} 

void VWLandmarkTableModel::setIdImage(int idImage) 
{ m_idImage=idImage; } 

void VWLandmarkTableModel::setUsername(const QString &username) 
{ m_username=username; } 

bool VWLandmarkTableModel::select() 
{ 
    Q_ASSERT(!username().isEmpty()); 

    QString stmt="IdImage = %1 AND Username = '%2'"; 

    setFilter(stmt.arg(idImage()).arg(username())); 
    return QSqlTableModel::select(); 
} 

bool VWLandmarkTableModel::insertPoint(GraphicsPointLandmarkItem *item) 
{ 
    QString text; 
    QTextStream out(&text); 
    int row=rowCount(); 
    bool ok; 

    ok=insertRow(row); Q_ASSERT(ok); 

    QModelIndex idx=index(row, DefinitionColumn); 

    out<<*item; 
    ok=setData(idx, text); 
    Q_ASSERT(ok); 
    idx=index(row, NameColumn); 
    ok=setData(idx, tr("New point landmark")); 
    Q_ASSERT(ok); 
    return ok; 
} 

bool VWLandmarkTableModel::insertRowIntoTable(const QSqlRecord &values) 
{ 
    QString sql="EXEC InsertLandmark :IdImage,:Definition"; 
    QSqlQuery q; 
    bool ok; 

    ok=q.prepare(sql); Q_ASSERT(ok); 
    q.bindValue(":IdImage", values.value("IdImage")); 
    q.bindValue(":Definition", values.value("Definition")); 
    q.setForwardOnly(true); 
    if(!q.exec()) { 
     setLastError(q.lastError()); 
     return false; 
    } 
    qDebug()<<"hola mundo"; 
    return true; 
} 

void VWLandmarkTableModel::setDefaults(int row, QSqlRecord &r) 
{ 
    r.setValue("IdImage", idImage()); 
    r.setValue("Name", "Unnamed landmark"); 
    r.setValue("Username", username()); 
} 

Answer 1

Le problème était dans ma sélection personnalisée. L'appel de setFilter() provoque une boucle d'appel infinie.