def get_absolute_urls(self): not working ,Django - django

when I click the post title it is supposed to go to the post detail(detail.html) but it's not working, how do i fix this?
Here is Model.py
class Post(models.Model):
.......
def get_absolute_urls(self):
return reverse('blog:post_detail',
args=[self.publish.year,
self.publish.month,
self.publish.day, self.slug])
Urls.py
urlpatterns= [
path('',views.post_list,name='post_list'),
path('<int:year>/<int:month>/<int:day>/<slug:post>/',views.post_detail,name='post_detail'),
]
Views.py
def post_detail(request,year,month,day,post):
post= get_object_or_404(Post,slug=post,status='published',publish_year= year,publish_month= month, publish_day= day)
return render(request,'blog/detail.html',{'post':post})
list.html
{% extends "blog/base.html" %}
{% block title %} My Blog {% endblock title %}
{% block content %}
<h1>My Blog</h1>
<p>this is working in list.html</p>
{% for post in posts %}
<h2>
<a href="{{ post.get_absolute_url }}">
{{ post.title }}
</a>
</h2>
<p class="date">
Published{{ post.publish }} by {{ post.author }}
</p>
{{ post.body| truncatewords:30|linebreaks }}
{% endfor %}
{% endblock content %}
detail.html
{% extends "blog/base.html" %}
{% block content %}
<h1>{{ post.title }}</h1>
<p class="date">
Published {{ post.publish }} by {{ post.author }}
</p>
{{ post.body|linebreaks }}
{% endblock content %}

You need to use {% url 'get_absolute_urls' %}
or
change your function name above your model get_absolute_url instead of get_absolute_urls
Solution:
in models.py
def get_absolute_url(self): # removed the letter s
return reverse('blog:post_detail',
args=[self.publish.year,
self.publish.month,
self.publish.day, self.slug])
in .html
{% extends "blog/base.html" %}
{% block title %} My Blog {% endblock title %}
{% block content %}
<h1>My Blog</h1>
<p>this is working in list.html</p>
{% for post in posts %}
<h2>
<a href="{{ post.get_absolute_url }}">
{{ post.title }}
</a>
</h2>
<p class="date">
Published{{ post.publish }} by {{ post.author }}
</p>
{{ post.body| truncatewords:30|linebreaks }}
{% endfor %}
{% endblock content %}

Related

Using a custom form inside django wizard

How would I use a custom form to display inside the session wizard so when it goes through each step it displays the html for each form inside the signup.html.
createUser.html
{% extends 'base.html' %}
{% block title %}Create User{% endblock %}
{% block content %}
<form method="POST" action='.' enctype="multipart/form-data">
{% csrf_token %}
<!-- A formwizard needs this form -->
{{ wizard.management_form }}
{% for field in form %}
<p>
{{ field.label_tag }}<br>
{{ field }}
{% if field.help_text %}
<small style="color: grey">{{ field.help_text }}</small>
{% endif %}
{% for error in field.errors %}
<p style="color: red">{{ error }}</p>
{% endfor %}
</p>
{% endfor %}
<button>Sign up</button>
<button>Log In</button>
</form>
{% endblock %}
views.py
class UserWizard(SessionWizardView):
template_name = "registration/signup.html"
form_list = [SignUpForm]
def done(self, form_list, **kwargs):
process_data(form_list)
return redirect('home')
signup.html
{% extends 'base.html' %}
{% load i18n %}
{% block head %}
{{ wizard.form.media }}
{% endblock %}
{% block title %}Sign up{% endblock %}
{% block content %}
<h2>Sign up</h2>
<p>Step {{ wizard.steps.step1 }} of {{ wizard.steps.count }}</p>
<form action="." method="POST" enctype="multipart/form-data">
{% csrf_token %}
<table>
{{ wizard.management_form }}
{% if wizard.form.forms %}
{{ wizard.form.management_form }}
{% for form in wizard.form.forms %}
{{ form }}
{% endfor %}
{% else %}
{{ wizard.form }}
{% endif %}
</table>
{% if wizard.steps.prev %}
<button name="wizard_goto_step" type="submit" value="{{ wizard.steps.prev }}">{% trans "prev step" %}</button>
{% endif %}
<input type="submit" value="{% trans 'submit' %}"/>
</form>
{% endblock %}

Django - How to load paginated Page (next page) into my Template?

I have a model named "Person" (List of names).
6 Persons named "Anne". My Pagination is 2 per Page.
When i start a search query on my page for "Anne". I get the Response of "6 Results", it shows me the first two Results and it displays "Page 1 of 3. Next. So far everything fine. but when i press "next" the Browser only updates to
..../post_searchtwo/?page=2 but the next two Results will not show up.
(Using Django version 2.2.2 with PostgreSQL 11)
thanks in advance.
views.py
def post_searchtwo(request):
form = SearchForm()
query = None
results = []
if 'query' in request.GET:
form = SearchForm(request.GET)
if form.is_valid():
query = form.cleaned_data['query']
results = Person.objects.annotate(
search=SearchVector('city', 'last_name', 'first_name')
).filter(search=query)
paginator = Paginator(results, 2) # --- Show 2 items per page
page = request.GET.get('page')
try:
post_list = paginator.page(page)
except PageNotAnInteger:
post_list = paginator.page(1)
except EmptyPage:
post_list = paginator.page(paginator.num_pages)
context = {
'form': form,
'query': query,
'page': page,
'post_list': post_list,
'results': results
}
return render(request,'search/post_searchtwo.html', context)
my template / post_searchtwo.htnl
{% extends 'base.html' %}
{% load static %}
{% block custom_css %}
<link rel="stylesheet" type="text/css" href="{% static 'css/home_styles.css' %}">
{% endblock %}
{% block content %}
<form action="." method="get">
{{ form.as_p }}
<input type="submit" value="Search">
</form>
{% if query %}
<h3>Posts containing "{{ query }}"</h3>
<h3>
{% with results.count as total_results %}
Found {{ total_results }} result{{ total_results|pluralize }}
{% endwith %}
</h3>
{% for post in post_list %}
<h4>
{{ post.first_name }} {{ post.last_name }}
</h4>
{% empty %}
<p>Theren are no results for your query.</p>
{% endfor %}
<div class="col-6 offset-md-3">
{% include "pagination.html" with page=post_list %}
</div>
{% endif %}
{% endblock %}
.../pagination.htnl
<div class="pagination">
<span class="step-links">
{% if page.has_previous %}
Previous
{% endif %}
<span class="current">
Page {{ page.number }} of {{ page.paginator.num_pages }}.
</span>
{% if page.has_next %}
Next
{% endif %}
</span>
</div>
Update: Thanks to #Daniel Roseman
as Daniel pointed out (down below) here the changes.
.../pagination.htnl
<div class="pagination">
<span class="step-links">
{% if page.has_previous %}
Previous
{% endif %}
<span class="current">
Page {{ page.number }} of {{ page.paginator.num_pages }}.
</span>
{% if page.has_next %}
Next
{% endif %}
</span>
</div>

is_paginated not working properly for class based views in Django

book_list.html
{% extends "base.html" %}
{% block content %}
<h3> Available books </h3>
{% if book_list %}
<ul>
{% for book in book_list %}
<li> {{book.title }} <small> by {{book.author }}</small></li>
<p>{{ book.summary }}
{% endfor %}
<ul>
{% endif %}
{% if is_paginated %}
<div class="pagination">
<span class="page-links">
{% if page_obj.has_previous %}
previous
{% endif %}
<span class="page-current">
Page {{ page_obj.number }} of {{ page_obj.paginator.num_pages }}.
</span>
{% if page_obj.has_next %}
next
{% endif %}
</span>
</div>
{% else %}
<h4> pagination not working</h4>
{% endif %}
{% endblock %}
class in views.py :
class BookListView(generic.ListView):
model = Book
paginate_by = 2
queryset =Book.objects.all()
urls.py :
urlpatterns =[
url('^$',views.index, name ='index'), # matching with an empty string
url('^books/$',views.BookListView.as_view(),name ='books'), #the one to which I am adding the paginator
url('^book/(?P<pk>\d+)/$',views.BookDetailView.as_view(),name='book-detail'),
]
Book model :
class Book(models.Model):
title=models.CharField(max_length=100)
author = models.ForeignKey('Author',on_delete=models.SET_NULL,null = True)
summary = models.TextField(max_length=200,help_text="Enter the description")
isbn = models.CharField('ISBN',max_length=13 ,help_text='13 Character ISBN number' )
genre = models.ManyToManyField(Genre,help_text = 'selct a genre for this book')
class Meta:
ordering =["title"]
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('book-detail',args=[str(self.id)] )
The book_list gets rendered perfectly, the problem is with the paginator, the is_paginated condition is not working and it executes the else statement, I have been trying for more than 3 hours, but couldn't find a solution, What Am I missing here ?
Django version : 1.11.2
Python : 3.5
Edit :
update 1: The problem was the paginate_by value was two, and the total items to display was also two hence it didn't initiate the is_paginated tag,It worked fine when I added one item more than paginate_by value.
use this, you had some problem with the if condition
{% extends "base.html" %}
{% block content %}
<h3> Available books </h3>
{% if object_list %}
<ul>
{% for book in object_list %}
<li> {{book.title }} <small> by {{book.author }}</small></li>
<p>{{ book.summary }}
{% endfor %}
<ul>
{% if is_paginated %}
<div class="pagination">
<span class="page-links">
{% if page_obj.has_previous %}
previous
{% endif %}
<span class="page-current">
Page {{ page_obj.number }} of {{ page_obj.paginator.num_pages }}.
</span>
{% if page_obj.has_next %}
next
{% endif %}
</span>
</div>
{% else %}
<h4> pagination not working</h4>
{% endif %}
{% else %}
<h4> No book</h4>
{% endif %}
{% endblock %}

error in index.html of django-admin using django-admin-notifications

I am using django to make a new admin panel and I am also using django-admin-notifications to show notifications in my admin panel. I don't know why it is not working.
Here is my models.py
from __future__ import unicode_literals
from django.db import models
class MyAlbum(models.Model):
title = models.CharField(max_length=30)
photos = models.IntegerField()
def __unicode__(self):
return self.title
class Person(models.Model):
first_name = models.CharField(max_length=30)
last_name = models.CharField(max_length=30)
def __unicode__(self):
return self.first_name
class Musician(models.Model):
first_name = models.CharField(max_length=50)
last_name = models.CharField(max_length=50)
instrument = models.CharField(max_length=100)
def __unicode__(self):
return self.first_name
my admin.py
from django.contrib import admin
from django.contrib.admin import AdminSite
from .models import Person,MyAlbum,Musician
from django.contrib import admin
class MyAdminSite(AdminSite):
site_header = 'Wedding Administration'
site_admin = MyAdminSite(name='weddingadmin')
admin.site.register(Person)
admin.site.register(MyAlbum)
admin.site.register(Musician)
site_admin.register(Person)
site_admin.register(MyAlbum)
my notifications.py
import admin_notifications
from models import Person
def notification():
broken_links = Person.objects.filter(status=False).count()
if broken_links:
return "You have %s broken link%s.<br>You can view or fix them using the <a href='/admin/linkcheck/'>Link Manager</a>." % (broken_links, "s" if broken_links>1 else "")
else:
return ''
admin_notifications.register(notification)
I have also made changes in index.html of admin site
{% load notification_tag %}
{% extends "admin/base_site.html" %}
{% load i18n static %}
{% block extrastyle %}{{ block.super }}<link rel="stylesheet" type="text/css" href="{% static "admin/css/dashboard.css" %}" />{% endblock %}
{% block coltype %}colMS{% endblock %}
{% block bodyclass %}{{ block.super }} dashboard{% endblock %}
{% block breadcrumbs %}{% endblock %}
{% block content %}
{% error_notifications %}
<div id="content-main">
{% if app_list %}
{% for app in app_list %}
<div class="app-{{ app.app_label }} module">
<table>
<caption>
{{ app.name }}
</caption>
{% for model in app.models %}
<tr class="model-{{ model.object_name|lower }}">
{% if model.admin_url %}
<th scope="row">{{ model.name }}</th>
{% else %}
<th scope="row">{{ model.name }}</th>
{% endif %}
{% if model.add_url %}
<td>{% trans 'Add' %}</td>
{% else %}
<td> </td>
{% endif %}
{% if model.admin_url %}
<td>{% trans 'Change' %}</td>
{% else %}
<td> </td>
{% endif %}
</tr>
{% endfor %}
</table>
</div>
{% endfor %}
{% else %}
<p>{% trans "You don't have permission to edit anything." %}</p>
{% endif %}
</div>
{% endblock %}
{% block sidebar %}
<div id="content-related">
<div class="module" id="recent-actions-module">
<h2>{% trans 'Recent actions' %}</h2>
<h3>{% trans 'My actions' %}</h3>
{% load log %}
{% get_admin_log 10 as admin_log for_user user %}
{% if not admin_log %}
<p>{% trans 'None available' %}</p>
{% else %}
<ul class="actionlist">
{% for entry in admin_log %}
<li class="{% if entry.is_addition %}addlink{% endif %}{% if entry.is_change %}changelink{% endif %}{% if entry.is_deletion %}deletelink{% endif %}">
{% if entry.is_deletion or not entry.get_admin_url %}
{{ entry.object_repr }}
{% else %}
{{ entry.object_repr }}
{% endif %}
<br/>
{% if entry.content_type %}
<span class="mini quiet">{% filter capfirst %}{{ entry.content_type }}{% endfilter %}</span>
{% else %}
<span class="mini quiet">{% trans 'Unknown content' %}</span>
{% endif %}
</li>
{% endfor %}
</ul>
{% endif %}
</div>
</div>
{% endblock %}
please tell me what I am doing wrong.The index.html is the actual index.html of the admin template
EDIT 1:
TemplateSyntaxError at /admin/
'notification_tag' is not a registered tag library. Must be one of:
admin_list
admin_modify
admin_static
admin_urls
cache
i18n
l10n
log
static
staticfiles
tz
I was installing django-admin-notifications via pip but i found that only init.py file was installed in the site-packages so i cloned the repository so my advice is don't install django-admin-notifications via pip although there is a package available but only the init.py file was installed

Django template include a template with a variable coming from view

I have problem with Django templates. I want to create a base html, which I will use to display posts. I call a template from view, which includes an html file, where the file extends the base html.
view
def main(request):
all_posts = News.objects.all()
return render_to_response("index.html", {'all_posts': all_posts})
template -- index.html
<div id="content">
{% include 'content.html' with posts=all_posts%}
</div>
content.html
{% extends "content_base.html" %}
{% for post in posts %}
{% block date_of_post %} {{ post.date }} {% endblock %}
{% block post_author %} {{ post.author }} {% endblock %}
{% block post %} {{ post.content }} {% endblock %}
{% endfor %}
content_base.html
<div class="post">
<h2 class="title">{% block blabla %}{% endblock %}</h2>
<p class="meta"><span class="date">{% block date_of_post %}{% endblock %}</span><span class="posted">Posted by {% block post_author %}{% endblock %}</span></p>
<div style="clear: both;"> </div>
<div class="entry">
<p>
{% block post %} {% endblock %}
</p>
<p class="links">
Read More
Comments
</p>
</div>
</div>
But it seems like I cannot pass the *all_posts* variable to content.html. What is the problem here? Am I doing something wrong?
Thanks in advance.
You should move the loop into index.html, and include content_base.html directly. So index.html becomes:
<div id="content">
{% for post in posts %}
{% include 'content_base.html' %}
{% endfor %}
</div>
and content_base.html is
<div class="post">
<h2 class="title">{{ post.title }}</h2>
<p class="meta"><span class="date">{{ post.date }}</span><span class="posted">Posted by {{{ post.author }}</span></p>
<div style="clear: both;"> </div>
<div class="entry">
<p>
{{ post.content }}
</p>
<p class="links">
Read More
Comments
</p>
</div>
</div>
You're using blocks with identical names, because you're using them in a loop:
{% for post in posts %}
{% block date_of_post %} {{ post.date }} {% endblock %}
{% block post_author %} {{ post.author }} {% endblock %}
{% block post %} {{ post.content }} {% endblock %}
{% endfor %}
You can't do that. Look here.
Sometimes too much normalization is not so good. You can simply have index.html and all of your code can go there (avoiding unnecessary blocks).
<div id="content">
{% for post in all_posts %}
<div class="post">
<h2 class="title">{{post.title}}</h2>
<p class="meta"><span class="date">{{post.date}}</span><span class="posted">Posted by {{post.post_author}}</span></p>
<div style="clear: both;"> </div>
<div class="entry">
<p>
{{post.content}}
</p>
<p class="links">
Read More
Comments
</p>
</div>
</div>
{% endfor %}
</div>