在使用信号时出现错误，Django无法识别内置的User模型的app_label。
在使用信号时出现错误，Django无法识别内置的User模型的app_label。
我正在学习Django信号，并尝试使用一个简单的信号来在创建新用户（默认为Django User模型）后直接创建个人资料。但是，每当我尝试运行服务器时，我都会收到以下错误：
但是：django.contrib.contenttypes已在INSTALLED_APPS中
我是个新手，卡住了.....
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'rest_framework',
'bootstrapform',
'basic',
]
# urls
"""Filmweb URL Configuration
The `urlpatterns` list routes URLs to views. For more information please see:
https://docs.djangoproject.com/en/3.2/topics/http/urls/
Examples:
Function views
1. Add an import: from my_app import views
2. Add a URL to urlpatterns: path('', views.home, name='home')
Class-based views
1. Add an import: from other_app.views import Home
2. Add a URL to urlpatterns: path('', Home.as_view(), name='home')
Including another URLconf
1. Import the include() function: from django.urls import include, path
2. Add a URL to urlpatterns: path('blog/', include('blog.urls'))
"""
from django.contrib import admin
from django.urls import path
from django.contrib.auth import views as auth_views
from basic.views import Main, ActorsListView, ActorModifyView, ActorCreateView, \
ActorDeleteView, Films, FilmCreateView, FilmModifyView, FilmDeleteView, Register, RateIt, FilmDetails, Profile, \
RolesView, RoleModifyView, RestFilmView
from django.conf import settings
from django.conf.urls.static import static
urlpatterns = [
path('admin/', admin.site.urls, name='admin'),
path('main/', Main.as_view(), name='Main'),
path('films/', Films.as_view(), name='Films'),
path('films/add', FilmCreateView.as_view(), name='Films_add'),
path('films/modify/', FilmModifyView.as_view(), name='Films_modify'),
path('films/delete/', FilmDeleteView.as_view(), name='Films_delete'),
path('films/details/', FilmDetails.as_view(), name='Films_details'),
path('rate/', RateIt.as_view(), name="Rate"),
path('rest/', RestFilmView.as_view(), name="Rate"),
path('actors/', ActorsListView.as_view(), name='Actors'),
path('actors/add/', ActorCreateView.as_view(), name='Actors_add'),
path('actor/modify//', ActorModifyView.as_view(), name='Actor_modify'),
path('actor/delete//', ActorDeleteView.as_view(), name='Actor_delete'),
path('roles/', RolesView.as_view(), name='Roles'),
path('roles/modify/', RoleModifyView.as_view(), name='Role_modify'),
# path('actor/modify//', ActorModifyView.as_view(), name='Actor_modify'),
path('login/', auth_views.LoginView.as_view(), name="Login"),
path('logout/', auth_views.LogoutView.as_view(), name="Logout"),
path('register/', Register.as_view(), name="Register"),
path('profile/', Profile.as_view(), name="Profile"),
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
#admin
from django.contrib import admin
from .models import *
# Register your models here.
# @admin.register(Films)
# class FilmAdmin(admin.ModelAdmin):
# fields = ['title', 'description', 'premiere', 'imdb_rating', 'genre']
# list_display = ['title', 'description', 'premiere', 'imdb_rating', 'genre']
# list_filter = ("premiere", "imdb_rating", 'genre')
# search_fields = ("title", "description", "premiere", 'genre')
admin.site.register(Genre)
admin.site.register(Films)
admin.site.register(Actors)
admin.site.register(Roles)
# admin.site.register(RoleReviews)
admin.site.register(FilmReviews)
# admin.site.register(Profiles)
# admin.site.register(Directors)
# admin.site.register(Messages)
# apps.py
from django.apps import AppConfig
from django.contrib.auth.models import User
class UsersConfig(AppConfig):
name = 'basic'
def ready(self):
import basic.signals
# signals.py
from django.db.models.signals import post_save
from django.contrib.auth.models import User
from django.dispatch import receiver
from .models import Profile
@receiver(post_save, sender=User)
def build_profile(sender, instance, created, **kwargs):
if created:
Profile.objects.create(user=instance)
@receiver(post_save, sender=User)
def save_profile(sender, instance, **kwargs):
instance.profile.save()
# models
from pyexpat import model
from django.db import models
from django.core.validators import MinValueValidator, MaxValueValidator
from django.contrib.auth.models import User
# Create your models here.
class Genre(models.Model):
# 0 = 'Undefined'
# 1 = 'SO'
# 2 = 'JR'
# 3 = 'SR'
# 4 = 'GR'
# YEAR_IN_SCHOOL_CHOICES = [
# (FRESHMAN, 'Freshman'),
# (SOPHOMORE, 'Sophomore'),
# (JUNIOR, 'Junior'),
# (SENIOR, 'Senior'),
# (GRADUATE, 'Graduate'),
# ]
MOVIE_TYPE = {
(0, 'Undefined'),
(1, 'Comedy'),
(2, 'Drama'),
(3, 'Sci-fi'),
(4, 'action'),
(5, 'romantic'),
(6, 'rom-coms'),
(7, 'adventure'),
(8, 'musicals'),
}
name = models.PositiveSmallIntegerField(default=0, choices=MOVIE_TYPE)
def show_genre(self):
if self.name == 0:
return 'Undefined'
elif self.name == 1:
return 'Comedy'
elif self.name == 2:
return 'Drama'
elif self.name == 3:
return 'Sci-fun'
elif self.name == 4:
return 'Action'
elif self.name == 5:
return 'Romantic'
elif self.name == 6:
return 'Rom-coms'
elif self.name == 7:
return 'Adventure'
elif self.name == 8:
return 'Musiclas'
def __str__(self):
return f'{self.show_genre()}'
class Films(models.Model):
title = models.CharField(max_length=64, blank=False, unique=True)
description = models.TextField(default="")
premiere = models.DateField(null=True, blank=True)
duration = models.PositiveSmallIntegerField(default=0)
imdb_rating = models.DecimalField(max_digits=4, decimal_places=2, null=True, blank=True)
genre = models.ForeignKey(Genre, on_delete=models.CASCADE, null=True, blank=True)
# directed_by = models.ForeignKey("Directors", null=False, blank=False, on_delete=models.CASCADE)
poster = models.ImageField(upload_to='posters', null=True, blank=True)
roles = models.ManyToManyField("Actors", through='Roles', related_name='role')
film_reviews = models.ManyToManyField(User, through='FilmReviews')
def __str__(self):
return self.title_with_year()
def title_with_year(self):
return f"{self.title} ({self.premiere})"
def total_seen(self):
return FilmReviews.objects.filter(seen=True, film=self).count()
class Actors(models.Model):
name = models.CharField(max_length=32)
surname = models.CharField(max_length=32)
photo = models.ImageField(upload_to='actors', null=True, blank=True)
def __str__(self):
return f"{self.name} {self.surname}"
class Roles(models.Model):
film = models.ForeignKey(Films, on_delete=models.CASCADE, related_name='film_title')
actor = models.ForeignKey(Actors, on_delete=models.CASCADE, related_name='actor_role')
role_name = models.CharField(max_length=64, null=False, blank=False)
# role_photo = models.ImageField(upload_to='roles', null=True, blank=True)
# role_review = models.ManyToManyField(User, through='RoleReviews')
def __str__(self):
return f"{self.film.title} {self.actor.name} {self.actor.surname}"
class FilmReviews(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='User_FilmReviews')
film = models.ForeignKey(Films, on_delete=models.CASCADE)
user_rating = models.DecimalField(max_digits=4, decimal_places=2, null=False, blank=False)
user_review = models.TextField(null=True, blank=True)
seen = models.BooleanField(default=True)
class Profile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
image = models.ImageField(default='profilepic.jpg', upload_to='profiles', null=True, blank=True)
location = models.CharField(max_length=100, default='Not your business')
def __str__(self):
return self.user.username