please this the error i got when i run python manage.py makemigrations File "C:\Users\Admin\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\management\__init__.py", line 371, in execute_from_command_line utility.execute() File "C:\Users\Admin\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\management\__init__.py", line 347, in execute django.setup() File "C:\Users\Admin\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\__init__.py", line 24, in setup apps.populate(settings.INSTALLED_APPS) File "C:\Users\Admin\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\apps\registry.py", line 112, in populate app_config.import_models() File "C:\Users\Admin\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\apps\config.py", line 198, in import_models self.models_module = import_module(models_module_name) File "C:\Users\Admin\AppData\Local\Programs\Python\Python36-32\lib\importlib\__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 994, in _gcd_import File "<frozen importlib._bootstrap>", line 971, in _find_and_load File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 665, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 678, in exec_module File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed File "C:\Users\Admin\Desktop\Django Web\myproject\boards\models.py", line 10, in <module> class Topic (models.Model): File "C:\Users\Admin\Desktop\Django Web\myproject\boards\models.py", line 13, in Topic board = models.ForeignKey(Board, related_name='topics') TypeError: __init__() missing 1 required positional argument: 'on_delete'
this are the codes from django.db import models from django.contrib.auth.models import User class Board(models.Model): name = models.CharField(max_length=30, unique=True) description = models.CharField(max_length=100) class Topic (models.Model): subject = models.CharField(max_length=255) last_updated = models.DateTimeField() board = models.ForeignKey(Board, related_name='topics') starter = models.ForeignKey(User, related_name='topics') class Post(models.Model): message = models.TextField(max_length=4000) topic = models.ForeignKey(Topic, related_name='posts') created_at = models.DateTimeField(auto_now_add=True) updated_at = models.DateTimeField(null=True) created_by = models.ForeignKey(User, related_name='posts') updated_by = models.ForeignKey(User, null=True, related_name='+') -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-users+unsubscr...@googlegroups.com. To post to this group, send email to django-users@googlegroups.com. Visit this group at https://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CAPkbFbaHq8Mgz_ZLnmC1EWQmT7FodSbEaWnd7buTcRR85aYTSg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.