Operational Error No such table Django - django

Question

Hi I am doing the djangogirls tutorial and have come across the OperationalError no such table: blog_post. This works perfect on my virtual environment, but I get the OperationalError after pushing to heroku.
I am using Django 1.7.7. More information on the error is available at: https://girlsblog.herokuapp.com/
I have done
python manage.py makemigrations
python manage.py migrate
initially in the beginning of the tutorial. Then I attempted to do it again and there are "No changes detected" and "No migrations to make"
This is my post_list.html
{% extends 'blog/base.html' %}
{% block content %}
{% for post in posts %}
<div class="post">
<div class="date">
{{ post.published.date }}
</div>
<h1>{{ post.title }}</h1>
<p> {{ post.text|linebreaks }}</p>
</div>
{% endfor %}
{% endblock content %}
This is my .gitignore
myvenv
__pycache__
staticfiles
local_settings.py
db.sqlite3
Models.py
from django.db import models
from django.utils import timezone
# Create your models here.
class Post(models.Model):
author = models.ForeignKey('auth.User')
title = models.CharField(max_length=200)
text = models.TextField()
created_date = models.DateTimeField(
default=timezone.now)
published_date = models.DateTimeField(
blank=True, null=True)
def publish(self):
self.published_date = timezone.now()
self.save()
def __str__(self):
return self.title
Settings.py
"""
Django settings for mysite project.
For more information on this file, see
https://docs.djangoproject.com/en/1.7/topics/settings/
For the full list of settings and their values, see
https://docs.djangoproject.com/en/1.7/ref/settings/
"""
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
import os
BASE_DIR = os.path.dirname(os.path.dirname(__file__))
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.7/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = '1l8)#&q8r_wwev1r9mm8q5ezz8p#)rvg(l4%(t^-t8s4bva2+r'
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
TEMPLATE_DEBUG = True
ALLOWED_HOSTS = []
# Application definition
INSTALLED_APPS = (
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'blog',
)
MIDDLEWARE_CLASSES = (
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
)
ROOT_URLCONF = 'mysite.urls'
WSGI_APPLICATION = 'mysite.wsgi.application'
# Database
# https://docs.djangoproject.com/en/1.7/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
}
}
# Internationalization
# https://docs.djangoproject.com/en/1.7/topics/i18n/
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'America/Chicago'
USE_I18N = True
USE_L10N = True
USE_TZ = False
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.7/howto/static-files/
STATIC_URL = '/static/'
import dj_database_url
DATABASES['default'] = dj_database_url.config()
SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')
ALLOWED_HOSTS = ['*']
STATIC_ROOT = 'staticfiles'
DEBUG = False
try:
from .local_settings import *
except ImportError:
pass
STATICFILES_DIRS = (
os.path.join(BASE_DIR, "static"),
)
blog/views.py
from django.shortcuts import render, get_object_or_404
from django.utils import timezone
from .models import Post
from .forms import PostForm
# Create your views here.
def post_list(request):
posts = Post.objects.filter(published_date__lte=timezone.now()).order_by('published_date')
return render(request, 'blog/post_list.html', {'posts': posts})
def post_detail(request, pk):
post = get_object_or_404(Post, pk=pk)
return render(request, 'blog/post_detail.html', {'post': post})
def post_new(request):
form = PostForm()
return render(request, 'blog/post_edit.html', {'form': form})
I am really new to this, so please forgive "simple" mistakes.

Answer 1

Old post, but does not appeared to be answered so I'll take a shot. I was led here via google after having a similar problem.
This issue is probably a missing database on the heroku side. If you are pushing via git, and db.sqlite3 is in your .gitignore, it will definitely be missing there, and will need to be created there. This was exactly my issue when fiddling with a pre-made example (where the db had not yet been created).
$ python manage.py migrate
on your heroku environment should fix it.

Answer 2

This is because on Heroku you've very likely got the postgresql backend installed, not sqlite. You need to configure your production deployment to correctly use postgresql... I'd give instructions on that but I have to figure it out now...

Answer 3

I encountered the same issue and found a solution on reddit. Use
git add -f db.sqlite3
Then commit, push, and finally pull on pythonanywhere.com.
Credits to reddit users elbuckez & jeans_and_a_t-shirt

Answer 4

I did two things to resolve this:
Typed python3 manage.py migrate in server console, as David Nugent above said.
In .gitignore file, I had to comment out db.sqlite3. I then committed and pushed this change, then went back into my server (in my case pythonanywhere, not heroku) and did git pull.

Answer 5

Run this command python manage.py migrate --run-syncdb after these commands
python manage.py migrate
python manage.py makemigrations

Answer 6

Include this statement in your models.py:
from django.contrib.auth.models import User