** Changed in: openlp
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1095268
Title:
issue with 'QPyNullVariant' in parsing settings
Status in OpenLP - Worship Presentation Software:
Fix Released
Bug description:
Someone in a comment reported the following issue:
Traceback (most recent call last):
File "openlp/core/ui/generaltab.py", line 277, in load
self.numberEdit.setText(settings.value(u'ccli number', u''))
TypeError: QLineEdit.setText(QString): argument 1 has unexpected type
'QPyNullVariant'
Steps to reproduce:
1. run openlp
2. Open settings
3. change something on general tab
4. save it and then you'll get the previous traceback.
Symptoms:
- OSX, latest openlp dev tree
- not sure if osx specific
- Qt 4.8.3, PyQt 4.9.4 and PyQt 4.9.6
- happens only in parsing saved QSettings - with clean install openlp starts
but not the second time.
- bug appeared after the 'QString and QVariant auto-conversion' merge
Investigation:
- setting with empty value is not converted to 'None' but to type
QPyNullVariant while reading.
How to fix:
- The method 'Setting.value()' should
- convert QPyNullVariant to None if QPyNullVariant.isNull() == True
- convert None to empty string if defaultValue type is string
Some links:
http://python.6.n6.nabble.com/QPyNullVariant-td4981824.html
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