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comment model not attached to ticket model

Creating a separate comments app for ticket app. My issue is that when I create and submit my comment on a particle ticket, it creates its own new page of tickets instead of being attached to original ticket. I think the issue has to do with my urls.py file and I feel like i'm close to solving this but i’m not sure how to proceed.
Here is my comment models.py
from django.db import models
from django.utils import timezone
from django.contrib.auth.models import User
from django.urls import reverse
from tickets.models import Ticket
class Comment(models.Model):
ticket = models.ForeignKey(Ticket, related_name='comments', on_delete=models.CASCADE,
null=True)
title = models.CharField(max_length=20)
content = models.TextField()
date_posted = models.DateTimeField(default=timezone.now)
author = models.ForeignKey(User, on_delete=models.CASCADE)
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('tickets:ticket-detail', kwargs={'pk': self.pk})
Here is my ticket models.py
from django.db import models
from django.utils import timezone
from django.contrib.auth.models import User
from django.urls import reverse
from users.models import Profile
class Ticket(models.Model):
title = models.CharField(max_length=100)
content = models.TextField()
date_posted = models.DateTimeField(default=timezone.now)
author = models.ForeignKey(User, on_delete=models.CASCADE)
assignee = models.ForeignKey(Profile, on_delete=models.SET_NULL, blank=True, null=True)
status = models.BooleanField(choices=MARKED, default=True)
priority = models.TextField(choices=PRIORITIES, default='None', max_length=10)
label = models.CharField(choices=TYPES, default='Misc', max_length=100)
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('ticket-detail', kwargs={'pk': self.pk})
Here is the main urls.py
from django.conf import settings
from django.contrib import admin
from django.urls import path, include
from django.conf.urls.static import static
app_name = 'tickets'
urlpatterns = [
path('admin/', admin.site.urls),
path('', include('users.urls')),
path('', include(('tickets.urls', 'tickets'), namespace='tickets')),
path('', include('tickets.urls')),
path('', include('comments.urls')),
]
if settings.DEBUG:
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
Here is the ticket urls.py
from django.conf import settings
from django.contrib import admin
from django.urls import path, include
from django.conf.urls.static import static
app_name = 'tickets'
urlpatterns = [
path('admin/', admin.site.urls),
path('', include('users.urls')),
path('', include(('tickets.urls', 'tickets'), namespace='tickets')),
path('', include('tickets.urls')),
path('', include('comments.urls')),
]
if settings.DEBUG:
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
Here is my comments urls.py
from django.urls import include, path
from .views import (
CommentListView,
CommentCreateView,
CommentUpdateView,
CommentDeleteView,
)
urlpatterns = [
path('tickets/<int:pk>/', CommentListView.as_view(), name='ticket-detail'),
path('tickets/<int:pk>/comments/new/', CommentCreateView.as_view(), name='comment-create'),
path('tickets/comments/<int:pk>/update/', CommentUpdateView.as_view(), name='comment-update'),
path('tickets/comments/<int:pk>/delete/', CommentDeleteView.as_view(), name='comment-delete'),
]

AttributeError: module 'django.db.models' has no attribute 'BigAutoField'

so i'm following the Django project in the textbook "Python crash course 2nd ed" and i'm into the mapping URLS section for those who know, and when i try my system cant seem to runserver anymore, i'm encountering the following error: AttributeError: module 'django.db.models' has no attribute 'BigAutoField'
if anyone can help, it would be great, thanks already. i'm fairly new to django and trying my way around it but i don't really know what or where to find the error..
it worked actually fine before i added the two urls.py:
from django.urls import path, include
from django.contrib import admin
urlpatterns = [
path('admin/', admin.site.urls),
path('', include('learning_logs.urls'), name='learning_logs'),
]
and
"""Defines url patterns for learning_logs."""
from django.urls import path
from . import views
app_name = 'learning_logs'
urlpatterns = [
# Home page.
path('', views.index, name='index'),
]
the models.py is
from django.db import models
# Create your models here.
class Topic(models.Model):
"""A topic the user is learning about"""
text = models.CharField(max_length=200)
date_added = models.DateTimeField(auto_now_add=True)
def __str__(self):
"""return a string representation of the model"""
return self.text
class Entry(models.Model):
"""something specific learned about a topic"""
topic = models.ForeignKey(Topic, on_delete=models.CASCADE)
text = models.TextField()
date_added = models.DateTimeField(auto_now_add=True)
class Meta:
verbose_name_plural = 'entries'
def __str__(self):
"""return a string representation of the model"""
if len(self.text) >= 50:
return f"{self.text[:50]}..."
else:
return "..."

It is the version you have to change.
Django 1.8 does not have BigAutoField.
Here's url to Django 1.8 doc

Getting Attribute Error after adding html file in django

I am trying to build a website on cPanel using django. My models were working fine untill I created my first html page and tried to render it. Now whenever I try to load my site I get "AttributeError at /admin/
module 'artclBlog.views' has no attribute 'home'" pic of error message
my views.py
from django.shortcuts import render, get_object_or_404
from .models import Blog
def home(request):
blogs = Blog.objects.order_by('-date')
return render(request, 'blog/home.html', {'blogs': blogs})
my urls.py
from django.contrib import admin
from django.urls import path, include
from django.conf.urls.static import static
from django.conf import settings
from artclBlog import views
urlpatterns = [
path('admin/', admin.site.urls),
path('', views.home, name='home'),
path('blog/', include('blog.urls')),
]
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
my models.py
from django.db import models
class Blog(models.Model):
title = models.CharField(max_length=200, default='')
summary = models.CharField(max_length=200, default='')
pageOne = models.TextField(default='')
pageTwo = models.TextField(default='')
pageThree = models.TextField(default='')
pageFour = models.TextField(default='')
date = models.DateField(default='')
def __str__(self):
return self.title

Django "Page not found (404)"

I think I done everything correct but I don't know why it doesn't work. When I try to reach a page I get error "Page not found (404)".
So, this all products page works 127.0.0.1:8000/products/ but when I try to visit single product page 127.0.0.1:8000/products/audi I get error that it's not found...
So, maybe you what's wrong here?
Thank you.
Page not found (404)
Request Method: GET
Request URL: http://link/products/audi
Using the URLconf defined in ecommerce.urls, Django tried these URL patterns, in this order:
^static/(?P<path>.*)$
^media/(?P<path>.*)$
^admin/doc/
^admin/
^products/ ^$ [name='products']
^products/ ^$(?P<slug>.*)/$
^contact/ [name='contact_us']
The current URL, products/audi, didn't match any of these.
Main project urls.py:
from django.conf import settings
from django.conf.urls import patterns, include, url
# Uncomment the next two lines to enable the admin:
from django.contrib import admin
admin.autodiscover()
urlpatterns = patterns('',
(r'^static/(?P<path>.*)$', 'django.views.static.serve', {
'document_root': settings.STATIC_ROOT
}),
(r'^media/(?P<path>.*)$', 'django.views.static.serve', {
'document_root': settings.MEDIA_ROOT
}),
url(r'^admin/doc/', include('django.contrib.admindocs.urls')),
url(r'^admin/', include(admin.site.urls)),
url(r'^products/', include('products.urls')),
url(r'^contact/', 'contact.views.contact_us', name='contact_us'),
)
Products app urls.py:
from django.conf import settings
from django.conf.urls import patterns, include, url
urlpatterns = patterns('products.views',
url(r'^$', 'all_products', name='products'),
url(r'^$(?P<slug>.*)/$', 'single_product'),
)
views.py
from django.http import HttpResponse, HttpResponseRedirect
from django.shortcuts import render_to_response, RequestContext, get_object_or_404
from .models import Product
def all_products(request):
products = Product.objects.filter(active=True)
return render_to_response('products/all.html', locals(), context_instance=RequestContext(request))
def single_product(request, slug):
product = get_object_or_404(Product, slug=slug)
return render_to_response('products/single.html', locals(), context_instance=RequestContext(request))
models.py
from django.db import models
# Create your models here.
class Product(models.Model):
title = models.CharField(max_length=220)
description = models.CharField(max_length=3000, null=True, blank=True)
price = models.DecimalField(max_digits=1000, decimal_places=2, null=True, blank=True)
slug = models.SlugField()
active = models.BooleanField(default=True)
timestamp = models.DateTimeField(auto_now_add=True, auto_now=False)
updated = models.DateTimeField(auto_now=True, auto_now_add=False)
def __unicode__(self):
return self.title
class Meta:
ordering = ['title',]
class ProductImage(models.Model):
product = models.ForeignKey(Product)
description = models.CharField(max_length=3000, null=True, blank=True)
image = models.ImageField(upload_to='product/images/')
timestamp = models.DateTimeField(auto_now_add=True, auto_now=False)
updated = models.DateTimeField(auto_now=True, auto_now_add=False)
def __unicode__(self):
return self.image

Your URL pattern has an extra $ at the beginning, so it can never match anything:
url(r'^$(?P<slug>.*)/$', 'single_product')
This should be:
url(r'^(?P<slug>.*)/$', 'single_product')
This still requires a trailing slash, which is the normal pattern. With that corrected, your URL should be /products/audi/. You don't show the context in which that URL is created, but this is one example of why it's a good idea to use Django's url reversal to build URLs if at all possible. That would look something like this, in Python code (for instance, possibly in a get_absolute_url method on the model:
reverse('single_product', kwargs={'slug': someproduct.slug})
Or like this, in a template:
Django 1.5:
{% url 'single_product' someproduct.slug %}
Django 1.4 and earlier:
{% url single_product someproduct.slug %}

You have a typo:
url(r'^$(?P<slug>.*)/$', 'single_product'),
Note this $ just after ^, in regexp it states for a string end. Replace with
url(r'^(?P<slug>.*)/$', 'single_product'),

Using tastypie to write APIS. Got error in the urls.py

name 'entry_resource' is not defined
This is my models.py
from tastypie.utils.timezone import now
from django.contrib.auth.models import User
from django.db import models
from django.template.defaultfilters import slugify
class Entry(models.Model):
user = models.ForeignKey(User)
pub_date = models.DateTimeField(default=now)
title = models.CharField(max_length=200)
slug = models.SlugField()
body = models.TextField()
def __unicode__(self):
return self.title
def save(self, *args, **kwargs):
# For automatic slug generation.
if not self.slug:
self.slug = slugify(self.title)[:50]
return super(Entry, self).save(*args, **kwargs)
This is my api.py:
from tastypie.resources import ModelResource
from links.models import Entry
class EntryResource(ModelResource):
class Meta:
queryset = Entry.objects.all()
resource_name = 'entry'
This is my urls.py
from django.conf.urls import patterns, include, url
from links.api import EntryResource
# Uncomment the next two lines to enable the admin:
from django.contrib import admin
admin.autodiscover()
urlpatterns = patterns('',
# Examples:
# Uncomment the admin/doc line below to enable admin documentation:
# url(r'^admin/doc/', include('django.contrib.admindocs.urls')),
# Uncomment the next line to enable the admin:
# url(r'^admin/', include(admin.site.urls)),
(r'^api/', include(entry_resource.urls)),
)
I'm quite sure I am doing something rather silly. Just not able to find what though.

From official tastypie documentation (https://github.com/toastdriven/django-tastypie#whats-it-look-like):
# urls.py
# =======
from django.conf.urls.defaults import *
from tastypie.api import Api
from myapp.api import EntryResource
v1_api = Api(api_name='v1')
v1_api.register(EntryResource())
urlpatterns = patterns('',
# The normal jazz here then...
(r'^api/', include(v1_api.urls)),
)