Problem with empty values in getFeatures with OrderBy

[qgib]

Author Name: Marcos Medeiros (Marcos Medeiros)
Original Redmine Issue: 16637
Affected QGIS version: 2.16.1
Redmine category:expressions

---

I am trying to display features list on my own QAbstractTableModel.
By now it can sort columns just fine when all rows contains data. But whenever the column contains NULL/empty values the QgsVectorLayer::getFeatures method crash the application.

Code:
QgsFeatureRequest req;

req.addOrderBy(mLayer->attributeDisplayName(column), order == Qt::AscendingOrder);

QgsFeatureIterator it = mLayer->getFeatures(req);

QgsFeature feature;
long row = 0;
while (it.nextFeature(feature)) {
mRowToFeatureId[row++] = feature.id();
}

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

---

2.16 is no longer supported. Is this reproducible in 2.18.9?

---

• status_id was changed from Open to Feedback

[qgib]

Author Name: Giovanni Manghi (@gioman)

---

Closing for lack of feedback, please reopen if necessary.

---

• resolution was changed from to not reproducable
• status_id was changed from Feedback to Closed