Grid view extention

[size="2"]Hello All,[/size]

I am developing an application using Yii 1.0. We have some requirements to create reports like Redmine reports, can anyone please suggest extension or some code snippet? I did go through the parent child wiki and GroupGridView plugin but didn’t found the perfect one. The requirement is something like attached screenshot. htps://image.ibb.co/mWyRzk/screen1.png

In that screenshot, Master activity should be clickable (parent) and child activity (staff name, timesheet date) are default not display. If user required to look on details then only they will click on master activity otherwise can able to see the global report. In paging need to consider only master activity (parent). Also requirement for export to excel functionality for all master & child activities.

Please suggest or I need to develop custom grid data for this?

Thanks

Mayur Bhayani.