0
votes

Je gère le code de makemigration et je reçois de nombreuses erreurs

Je suis nouveau à Django Je veux créer une application business_plan Je le pas pour créer mes modèles J'ai créé de nombreux cours dans mes modèles.pyRy:

 > (business) C:\Users\hp\PycharmProjects\business\oasisconsuting>python manage.py makemigrations
 Traceback (most recent call last):
 File "manage.py", line 21, in <module>
   main()
 File "manage.py", line 17, in main
 execute_from_command_line(sys.argv)
 File "C:\Users\hp\PycharmProjects\business\lib\site-packages\django\core\management\__init__.py", 
 line 401, in execute_from_command_line
 utility.execute()
 File "C:\Users\hp\PycharmProjects\business\lib\site-packages\django\core\management\__init__.py", 
 line 377, in execute
 django.setup()
 File "C:\Users\hp\PycharmProjects\business\lib\site-packages\django\__init__.py", line 24, in setup
 apps.populate(settings.INSTALLED_APPS)
 File "C:\Users\hp\PycharmProjects\business\lib\site-packages\django\apps\registry.py", line 114, in 
 populate
   app_config.import_models()
 File "C:\Users\hp\PycharmProjects\business\lib\site-packages\django\apps\config.py", line 211, in 
 import_models
 self.models_module = import_module(models_module_name)
 File "C:\Users\hp\PycharmProjects\business\lib\importlib\__init__.py", line 127, in import_module
 return _bootstrap._gcd_import(name[level:], package, level)
 File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
 File "<frozen importlib._bootstrap>", line 991, in _find_and_load
 File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
 File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
 File "<frozen importlib._bootstrap_external>", line 783, in exec_module
 File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
 File "C:\Users\hp\PycharmProjects\business\oasisconsuting\businessplan\models.py", line 9, in 
 <module>
 class Entrepreneur(models.Model):
 File "C:\Users\hp\PycharmProjects\business\oasisconsuting\businessplan\models.py", line 11, in 
 Entrepreneur
 admin=models.OneToOneField(CustomUser,on_delete=models.CASCADE())
 TypeError: CASCADE() missing 4 required positional arguments: 'collector', 'field', 'sub_objs', and 
 'using'

django django-models

0 commentaires

3 Réponses :

1
votes

Il suffit d'éliminer les crochets en cascade car il n'est pas méthode mais constant

class Entrepreneur(models.Model):
  admin=models.OneToOneField(CustomUser,on_delete=models.CASCADE)

class Projet(models.Model):
  id_promoteur=models.ForeignKey(Entrepreneur,on_delete=models.CASCADE)

5 commentaires

Pouvez-vous accepter la réponse? (Je l'apprécierais) @ user3828990

La tique verte n'est pas affichée sous les votes, c'est pourquoi et je n'ai pas reçu la réputation de réponse acceptée.

Désolé je suis nouveau dans Stackoverflow, veuillez dire; Ce que je devrais faire exactement pour accepter votre réponse

@ user3828990 aucun problème

@ user3828990

0
votes

merci je résolvez les erreurs celles-ci concernaient les supports de modèles.Cascade

mais quand je réalise le code, il affiche une autre erreur: (je ne sais pas si c'est une erreur ou des avertissements p>

> C:\Users\hp\PycharmProjects\business\lib\site-packages\django\db\models\base.py:320: 
RuntimeWarning: Model 'businessplan.customuser' was already registered. Reloadin
g models is not advised as it can lead to inconsistencies, most notably with related 
models.
  new_class._meta.apps.register_model(new_class._meta.app_label, new_class)
SystemCheckError: System check identified some issues:

ERRORS:
auth.User.groups: (fields.E304) Reverse accessor for 'User.groups' clashes with 
reverse accessor for 'CustomUser.groups'.
    HINT: Add or change a related_name argument to the definition for 'User.groups' or 
'CustomUser.groups'.
auth.User.user_permissions: (fields.E304) Reverse accessor for 'User.user_permissions' 
clashes with reverse accessor for 'CustomUser.user_permissions'.
    HINT: Add or change a related_name argument to the definition for 
'User.user_permissions' or 'CustomUser.user_permissions'.
businessplan.CustomUser.groups: (fields.E304) Reverse accessor for 'CustomUser.groups' 
clashes with reverse accessor for 'User.groups'.
    HINT: Add or change a related_name argument to the definition for 
'CustomUser.groups' or 'User.groups'.
businessplan.CustomUser.user_permissions: (fields.E304) Reverse accessor for 
'CustomUser.user_permissions' clashes with reverse accessor for 
'User.user_permissions'.

    HINT: Add or change a related_name argument to the definition for 
'CustomUser.user_permissions' or 'User.user_permissions'.
businessplan.CustomUser_groups: (fields.E336) The model is used as an intermediate 
model by 'businessplan.CustomUser.groups', but it does not have a foreign key to '
CustomUser' or 'Group'.
businessplan.CustomUser_user_permissions: (fields.E336) The model is used as an 
intermediate model by 'businessplan.CustomUser.user_permissions', but it does not hav
e a foreign key to 'CustomUser' or 'Permission'.
businessplan.Entrepreneur.admin: (fields.E300) Field defines a relation with model 
  'CustomUser', which is either not installed, or is abstract. 
businessplan.Projet.admin: (fields.E300) Field defines a relation with model 
  'CustomUser', 
   which is either not installed, or is abstract.

0 commentaires

0
votes

La raison est parce que vous appelez modèles.Cascade code> avec les crochets après cela. La dernière ligne de votre trace de votre trace indique que 4 arguments sont nécessaires car vous appelez à cette fonction plutôt que de simplement le référencer.

La ligne dont vous avez besoin est la suivante: p>

...

class Entrepreneur(models.Model):
    id_models= models.IntegerField(primary_key=True)
    admin=models.OneToOneField(CustomUser,on_delete=models.CASCADE)
...

0 commentaires