The "Clear DB" page doesn't work with PostgreSQL

[Ikalou]

The new "Clear DB" page makes use of SET FOREIGN_KEY_CHECKS to disable foreign key checks. This does not work with PostgreSQL and other databases. It fails with ProgrammingError at /silk/cleardb/: unrecognized configuration parameter "foreign_key_checks".

I think we should either a) duplicate all the logic inside of...

django-silk/silk/management/commands/silk_clear_request_log.py

Line 12 in d4b4403

def delete_model(model):

...into...

django-silk/silk/views/clear_db.py

Line 12 in b135b8e

def _truncate_tables(self, models):

...or b) call the command inside of the view.

If we can agree on the best method I can submit a pull request with a fix.

Thank you for taking a look at this!

[nasirhjafri]

I would prefer moving the logic to a common function and then call it in both view and command.

[nasirhjafri]

Added in 4.0.1
#407