QString QDjangoCompiler::databaseColumn(const QString &name)
{
QDjangoMetaModel model = baseModel;
QString modelPath;
QString modelRef = referenceModel(QString(), &model);
QStringList bits = name.split(QLatin1String("__"));
while (bits.size() > 1) {
const QByteArray fk = bits.first().toLatin1();
QDjangoMetaModel foreignModel;
if (!model.foreignFields().contains(fk)) {
// this might be a reverse relation, so look for the model
// and if it exists continue
foreignModel = QDjango::metaModel(fk);
if (!foreignModel.isValid())
break;
reverseModelRefs[bits.first()] = foreignModel.primaryKey();
} else {
foreignModel = QDjango::metaModel(model.foreignFields()[fk]);
}
// store reference
if (!modelPath.isEmpty())
modelPath += QLatin1String("__");
modelPath += bits.first();
modelRef = referenceModel(modelPath, &foreignModel);
model = foreignModel;
bits.takeFirst();
}
const QDjangoMetaField field = model.localField(bits.join(QLatin1String("__")).toLatin1());
return modelRef + QLatin1Char('.') + driver->escapeIdentifier(field.column(), QSqlDriver::FieldName);
}
QString QDjangoCompiler::databaseColumn(const QString &name)
{
QDjangoMetaModel model = baseModel;
QString modelName;
QString modelPath;
QString modelRef = referenceModel(QString(), &model, false);
QStringList bits = name.split(QLatin1String("__"));
while (bits.size() > 1) {
const QByteArray fk = bits.first().toLatin1();
QDjangoMetaModel foreignModel;
bool foreignNullable = false;
if (!modelPath.isEmpty())
modelPath += QLatin1String("__");
modelPath += bits.first();
if (!model.foreignFields().contains(fk)) {
// this might be a reverse relation, so look for the model
// and if it exists continue
foreignModel = QDjango::metaModel(fk);
QDjangoReverseReference rev;
const QMap<QByteArray, QByteArray> foreignFields = foreignModel.foreignFields();
foreach (const QByteArray &foreignKey, foreignFields.keys()) {
if (foreignFields[foreignKey] == baseModel.className()) {
rev.leftHandKey = foreignModel.localField(foreignKey + "_id").column();
break;
}
}
if (rev.leftHandKey.isEmpty()) {
qWarning() << "Invalid field lookup" << name;
return QString();
}
rev.rightHandKey = foreignModel.primaryKey();
reverseModelRefs[modelPath] = rev;
} else {
/** Sets the primary key for this QDjangoModel.
*
* \param pk
*/
void QDjangoModel::setPk(const QVariant &pk)
{
const QDjangoMetaModel metaModel = QDjango::metaModel(metaObject()->className());
setProperty(metaModel.primaryKey(), pk);
}
/** Returns a string representation of the model instance.
*/
QString QDjangoModel::toString() const
{
const QDjangoMetaModel metaModel = QDjango::metaModel(metaObject()->className());
const QByteArray pkName = metaModel.primaryKey();
return QString::fromLatin1("%1(%2=%3)").arg(QString::fromLatin1(metaObject()->className()), QString::fromLatin1(pkName), property(pkName).toString());
}
/** Returns the primary key for this QDjangoModel.
*/
QVariant QDjangoModel::pk() const
{
const QDjangoMetaModel metaModel = QDjango::metaModel(metaObject()->className());
return property(metaModel.primaryKey());
}
