On delete parameter foreign key error on migrate

[phanuelayuka]

When migration is done the following error is thrown. Kindly include foreign key on delete parameter to the models.

File "manage.py", line 15, in <module> File "/media/phang/venv/lib/python3.6/site-packages/directmessages/models.py", line 16, in <module> class Message(models.Model): File "/media/phang/venv/lib/python3.6/site-packages/directmessages/models.py", line 21, in Message sender = models.ForeignKey(AUTH_USER_MODEL, related_name='sent_dm', verbose_name=_("Sender")) TypeError: __init__() missing 1 required positional argument: 'on_delete'

[phanuelayuka]

This is only corrected by changing the following line of code in your virtual environment.
@python_2_unicode_compatible class Message(models.Model): """ A private directmessage """ content = models.TextField(_('Content')) sender = models.ForeignKey(AUTH_USER_MODEL, on_delete=models.CASCADE, related_name='sent_dm', verbose_name=_("Sender")) recipient = models.ForeignKey(AUTH_USER_MODEL, on_delete=models.CASCADE, related_name='received_dm', verbose_name=_("Recipient")) sent_at = models.DateTimeField(_("sent at"), null=True, blank=True) read_at = models.DateTimeField(_("read at"), null=True, blank=True)

[Reez0]

If anyone else is having this issue and doesn't necessarily want to be a contributor, download the repo as zip, go to models.py and add on_delete = models.CASCADE to sender and recipient then run python setup.py install.