Case de données dans Django
j'ai essaier de créer directement une base de donnée dans django pas la créer on posgres puis la connecté mais j'ai fais une erreur ou un oublie que je trouve pas aidé moi on me donné la ligne de l'erreur et le code d'erreur voici l'erreur et le code
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from django.db import models
class Artist(models.Model):
name= models.CharField(max_length=200, unique=True)
class Contact(models.Model):
email= models.EmailField(max_length=100)
name= models.CharField(max_length=200)
class Album(models.Model):
reference=models.IntegerField(null=True)
created_at= models.DateTimeField(auto_now_add=True)
available= models.BooleanField(default=True)
title = models.CharField(max_length=200)
picture=models.URLField()
artists=models.ManyToManyField(Artist,related_name='albums', blank=True)
class Booking(models.Model):
created_at= models.DateTimeField(auto_now_add=True)
contacted = models.BooleanField(default=False)
contact = models.ForeignKey(Contact, on_delete=models.CASCADE)
album=models.OneToOneField(Album) |
Erreur :File "manage.py", line 15, in <module>
execute_from_command_line(sys.argv)
File "C:\disquaire\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line
utility.execute()
File "C:\disquaire\lib\site-packages\django\core\management\__init__.py", line 357, in execute
django.setup()
File "C:\disquaire\lib\site-packages\django\__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "C:\disquaire\lib\site-packages\django\apps\registry.py", line 112, in populate
app_config.import_models()
File "C:\disquaire\lib\site-packages\django\apps\config.py", line 198, in import_models
self.models_module = import_module(models_module_name)
File "C:\Python37-32\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 728, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "C:\disquaire\disquaire_project\store\models.py", line 21, in <module>
class Booking(models.Model):
File "C:\disquaire\disquaire_project\store\models.py", line 25, in Booking
album=models.OneToOneField(Album)
TypeError: __init__() missing 1 required positional argument: 'on_delete'
