I am trying to populate models using populate script. I have set up models,and did migrations. I have tried every solution that I found on internet so far, but it did not work. It gives : "RuntimeError: Model class first_app.models.Topic doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS."
manage.py
#!/usr/bin/env python
"""Django's command-line utility for administrative tasks."""
import os
import sys
def main():
"""Run administrative tasks."""
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'first_project.settings')
try:
from django.core.management import execute_from_command_line
except ImportError as exc:
raise ImportError(
"Couldn't import Django. Are you sure it's installed and "
"available on your PYTHONPATH environment variable? Did you "
"forget to activate a virtual environment?"
) from exc
execute_from_command_line(sys.argv)
if __name__ == '__main__':
main()
populate_first_app.py
import os
from django.conf import settings
settings.configure()
os.environ.setdefault("DJANGO _SETTINGS_MODULE",'first_project.settings')
import django
django.setup()
import random
from first_app.models import AccessRecord, Webpage,Topic
from faker import Faker
fake_object=Faker();
topics=['Search,''Social','Marketplace','News','Games']
genders=['Male','Female']
def add_topic():
t=Topic.objects.get_or_create(top_name=random.choice(topics))[0]
t.save()
return t;
def populate(N=5):
for entry in range(N):
fake_topic=add_topic().top_name;
fake_name=fake_object.company();
fake_url=fake_object.url();
webpage=Webpage.objects.get_or_create(topic=fake_topic,name=fake_name,url=fake_url)[0]
if __name__=='__main__':
print('populating script');
populate(20);
print('populated')
models.py
from django.db import models
class Topic(models.Model):
top_name =models.CharField(max_length=264,unique=True);
def __str__(self) :
return self.top_name;
class Webpage(models.Model):
topic=models.ForeignKey(Topic,on_delete=models.CASCADE)
name=models.CharField(max_length=264,unique=True)
url=models.URLField(unique=True)
def __str__(self) :
return self.name;
class AccessRecord (models.Model):
name=models.ForeignKey(Webpage,on_delete=models.CASCADE);
date=models.DateField()
def __str__(self) :
return str(self.date)
# Create your models here.
INSTALLED_APPS
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'first_app'
]
apps.py
from django.apps import AppConfig
class FirstAppConfig(AppConfig):
default_auto_field = 'django.db.models.BigAutoField'
name = 'first_app'
folder structure
