<div class="gmail_quote">Hi all,<br><div class="gmail_quote"> I just took a look at the bug<div class="Ih2E3d"><br><a href="https://bugs.kde.org/show_bug.cgi?id=178572" target="_blank">https://bugs.kde.org/show_bug.cgi?id=178572</a><br>
</div>and started working on it. I just have came down to the core of the problem but I am stuck there. Here is the problem and I want some help from you guys to fix it. Kindly help me.<br>
<br>In kdeedu/step/<a href="http://step.worldmodel.cc" target="_blank">step.worldmodel.cc</a>, in the method QVariant WorldModel::data(const QModelIndex &index, int role) const which is an implementation of the QAbstractItemModel class's data() method, the index passed is valid, i.e isValid() returns true but the internalPointer() is null. I am just wondering if this possible at all. i.e how can index be valid when it points to no data. But some one on #kde-edu told its definitely possible, but I did not understand how.<br>
This exactly is causing the bug reported in the above link. Can any one help me on how to go about to fix this bug?<br clear="all"><br clear="all"></div><div><div></div><div class="Wj3C7c"><br><br></div></div></div><br clear="all">
<br>-- <br>Thanks and regards,<br> Madhusudan.C.S<br><br>Blogs at: <a href="http://www.madhusudancs.info">www.madhusudancs.info</a><br>Official Email ID: <a href="mailto:madhusudan@madhusudancs.info">madhusudan@madhusudancs.info</a><br>