Problem mit der XML-zu-JSON-Konvertierung ⇐ C++

[Guest]

Ich habe ein GUI-Programm zum Lesen von XML-Dateien, ich habe zwei Funktionen zum Konvertieren von XML in JSON geschrieben, aber aus irgendeinem Grund geht der Wert des letzten Elements während der Konvertierung verloren. Das angehängte Bild zeigt mein ursprüngliches XML und das daraus abgeleitete JSON.
Wie kann das behoben werden?
Hier sind meine Methoden:

Code: Select all

QJsonObject QtXML::modelIndexToJson(const QModelIndex &index,
QtTreeModel *model) {
QJsonObject jsonObject;

// Get the node name
QString key = model->data(index, Qt::DisplayRole).toString();

// Check if there is a text value
QString value = model->data(index, Qt::EditRole).toString();

// If there is a text value, save it
if (!value.isEmpty()) {
jsonObject[key] = value;
} else {
// If there is no text value, process child elements
QJsonObject childrenObject;
for (int i = 0; i < model->rowCount(index); ++i) {
QModelIndex childIndex = model->index(i, 0, index);
childrenObject.insert(model->data(childIndex, Qt::DisplayRole).toString(),
modelIndexToJson(childIndex, model));
}
jsonObject[key] = childrenObject;
}

return jsonObject;
}

// Method to convert data from QTreeView to JSON and save it to a file
void QtXML::convertXmlToJson(const QString &jsonFilePath) {
// Get the current view (QTreeView) from the tab
auto *currView = qobject_cast(tabWgt->currentWidget());
if (!currView) {
qWarning("The current view is not a QTreeView.");
return;
}

// Get the model of the current view
auto *currModel = dynamic_cast(currView->model());
if (!currModel) {
qWarning("The current view's model is not a QtTreeModel.");
return;
}

// Convert the root elements of the model into JSON
QJsonObject rootObject;
for (int i = 0; i < currModel->rowCount(); ++i) {
QModelIndex rootIndex = currModel->index(i, 0);
rootObject.insert(currModel->data(rootIndex, Qt::DisplayRole).toString(),
modelIndexToJson(rootIndex, currModel));
}

// Create JSON document
QJsonDocument jsonDoc(rootObject);

// Write JSON to file
QFile jsonFile(jsonFilePath);
if (!jsonFile.open(QIODevice::WriteOnly | QIODevice::Text)) {
qWarning("Failed to open JSON file for writing");
return;
}

jsonFile.write(jsonDoc.toJson(QJsonDocument::Indented));
jsonFile.close();
qInfo("Data from QTreeView successfully converted to JSON and written to file");
}

Beispielarbeit von Methoden. Quell-XML-Datei:

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Attraction registered
1058514543
77-0234
68350f83-f3d1-49e1-bdfc-739647cea2df
4


55.7875
37.6560

Park
Sokolniki District
Happy Swing
Eastern Administrative Okrug
SOKOLNIKI CULTURE AND RECREATION PARK

Konvertierte JSON-Datei:

Code: Select all

{
"ex.xml": {
"ex.xml": {
"Happy Swing": {
"Happy Swing": {
"AdmArea": {
"AdmArea": {
"": {
"": {
}
}
}
},
"District": {
"District": {
"": {
"": {
}
}
}
},
"ID": {
"ID": {
"": {
"": {
}
}
}
},
"Location": {
"Location": {
"": {
"": {
}
}
}
},
"LocationType": {
"LocationType": {
"": {
"": {
}
}
}
},
"Name": {
"Name": {
"": {
"": {
}
}
}
},
"Photo": {
"Photo": {
"": {
"": {
}
}
}
},
"RegistrationNumber": {
"RegistrationNumber": {
"": {
"": {
}
}
}
},
"State": {
"State": {
"": {
"": {
}
}
}
},
"geoData": {
"geoData": {
"Latitude": {
"Latitude": {
"": {
"": {
}
}
}
},
"Longitude": {
"Longitude": {
"": {
"":  {
}
}
}
}
}
},
"global_id": {
"global_id": {
"": {
"": {
}
}
}
}
}
}
}
}
}

Erwartete JSON-Datei:

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{
"catalog": {
"array": {
"State": "Attraction registered",
"global_id": 1058514543,
"RegistrationNumber": "77-0234",
"Photo": "68350f83-f3d1-49e1-bdfc-739647cea2df",
"ID": 4,
"geoData": {
"Latitude": 55.7875,
"Longitude": 37.656
},
"LocationType": "Park",
"District": "Sokolniki District",
"Name": "Happy Swing",
"AdmArea": "Eastern Administrative Okrug",
"Location": "SOKOLNIKI CULTURE AND RECREATION PARK"
}
}
}

Das ist mein QtTreeModel.h:

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class QtTreeModel : public QAbstractItemModel {
Q_OBJECT
public:
QtTreeModel(QObject *parent = nullptr);
void append(const QModelIndex &index);
void read(const QString &fileName);
void parseDomNode(const QDomNode &node, QStandardItem *parentItem);
int rowCount(const QModelIndex &parent = QModelIndex()) const override;
int columnCount(const QModelIndex &parent = QModelIndex()) const override;
QModelIndex index(int row, int column,
const QModelIndex &parent = QModelIndex()) const override;
QModelIndex parent(const QModelIndex &index) const override;
QVariant data(const QModelIndex &index,
int role = Qt::DisplayRole) const override;
QVariant headerData(int section, Qt::Orientation orientation,
int role = Qt::DisplayRole) const override;
bool removeRows(int row, int count,
const QModelIndex &parent = QModelIndex()) override;
void removeFile(const QString &fileName);
QStringList getFileList() const;
void setFileList(const QStringList &newFiles);
void addFile(const QString &fileName);
void clearFileList();
QStandardItem *getRoot() const { return root; }

private:
QStringList files{};
QStandardItem *root{};
QModelIndex currIndex{};
void append(const QModelIndex &sourceIndex, QStandardItem *item);
};