How to hook the admin interface?

Thats my first time in Django. So far everything is great, thanks to everybody , who worked in the project. I need to show the user a printable pdf after clicking save in an admin form. Creating pdf and other stuff is easy. I was unable to find any way to hook that part yet. With some reading I'm

Re: database migration

within the main project directory in linux python manage.py dumpdata > data.json command will dump your data to a json file change settings.py to use mysql, after that python manage.py syncdb this will create tables followed by python manage.py loaddata data.json will load everything back