You may check once,the link of block given below...i found functionality of this block similar with the block created by you.
blocks: course status tracker
In reply to Priya Shanu
Re: Progress tracker for students across multiple courses
by scott hallman -
This is all good and well but since it just shows course completion date and percentage for that module then you might as well just use overview in the gradebook. What is missing is informing the learner how far though each module/moodle course, what is outstanding and giving the learner a sense of progress for each module/moodle course. Something which used progress bars, for course completion would be a lot more helpful. This already exists in course completion block and progress block but needs to be pulled together on one page like the course status tracker should do. Course status tracker seems more based for management not informing the learner