Django ListView not showing up in frontend - python

I am trying to create a gym workout basic app in Django, and wish to have my workouts displayed as a list on my home page, using Django's built-in list view. For some reason, my home page template is rendering, with the proper headers and nav bar, but my list is not showing. Here is my code:
Models.py
from django.db import models
STATUS = (
(0,"Draft"),
(1,"Publish")
)
class Workout(models.Model):
workout_number = models.AutoField(primary_key=True)
name = models.CharField(max_length=255)
created_on = models.DateTimeField(auto_now_add=True)
content = models.TextField()
description = models.TextField(blank=True, default='')
time_cap = models.TimeField(auto_now=False, auto_now_add=False, blank=True)
rounds = models.IntegerField(blank=True, default='')
weight = models.FloatField(blank=True, default='')
status = models.IntegerField(choices=STATUS, default=0)
class Meta:
ordering = ['-created_on']
def __str__(self):
return self.name
Views.py
from django.shortcuts import render
from django.views import generic
from .models import Workout
class WorkoutList(generic.ListView):
model = Workout
template_name = 'home.html'
context_object_name = 'workout'
queryset = Workout.objects.filter(status=1).order_by('-created_on')
Template home.html (part of)
<div class="container">
<div class="row">
<div class="col-md-8 mt-3 left">
{% for workout in workout_list %}
<div class="card mb-4">
<div class="card-body">
<h2 class="card-title">{{ workout.name }}</h2>
<p class="card-text text-muted h6">{{ workout.created_on}} </p>
<p class="card-text">{{workout.content|slice:":200" }}</p>
</div>
</div>
{% endfor %}
</div>
</div>
Workout/Urls.py
from django.urls import path
from . import views
app_name='workout'
urlpatterns = [
path('', views.WorkoutList.as_view(), name='home'),
]

Since the context_object_name is 'workout', this means that the list of objects is passed as workout, but you iterate over {% for workout in workout_list %}. You should change this to:
from django.shortcuts import render
from django.views import generic
from .models import Workout
class WorkoutList(generic.ListView):
model = Workout
template_name = 'home.html'
context_object_name = 'workout_list'
queryset = Workout.objects.filter(status=1).order_by('-created_on')

Related

Output is not rendered on Django template for the same model whose output is rendered on another template

I am really new to Django and I am building a website while learning it. As per requirements, I have to show some news articles on both the home page and on another page that I navigate from the navbar. I have shown the articles list and individual details with the loop in my template files. Problem is, although I have written the for loop for rendering the news article on the home page, nothing is showing up. Following are my models.py, views.py, app/urls.py, and project/urls.py files :
#models.py
from django.contrib.auth.models import User
from django.db import models
from django.urls import reverse
from django.utils import timezone
from django.utils.translation import gettext_lazy as _
from taggit.managers import TaggableManager
from ckeditor.fields import RichTextField
class Post(models.Model):
STATUS_CHOICES = (
('draft', 'Draft'),
('published', 'Published'),
)
title = models.CharField(max_length=250)
# slug = models.SlugField(max_length=250, unique_for_date='publish')
slug = models.CharField(_("Slug"), max_length=200)
author = models.ForeignKey(User, on_delete=models.CASCADE, related_name='blog_posts')
body = RichTextField()
# image_header = models.ImageField(unique=True, default=timezone.now)
publish = models.DateTimeField(default=timezone.now)
# created = models.DateTimeField(auto_now_add=True)
# updated = models.DateTimeField(auto_now=True)
status = models.CharField(max_length=10, choices=STATUS_CHOICES, default='draft')
class Meta:
ordering = ('-publish',)
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('blog:details', args=[self.slug])
class News(models.Model):
STATUS_CHOICES = (
('draft', 'Draft'),
('published', 'Published'),
)
news_title = models.CharField(max_length=250) unique_for_date='nw_publish', unique=True, null=True)
slug = models.SlugField(max_length=300, unique_for_date='nw_publish')
news_author = models.ForeignKey(User, on_delete=models.CASCADE, related_name='news_posts')
news_body = RichTextField()
image_header = models.ImageField(upload_to='featured_image/%Y/%m/%d/', null=True, blank=True)
nw_publish = models.DateTimeField(default=timezone.now)
nw_status = models.CharField(max_length=10, choices=STATUS_CHOICES, default='draft')
news_tags = TaggableManager()
class Meta:
ordering = ('nw_publish',)
def __str__(self):
return self.news_title
def get_absolute_url(self):
return reverse('news:news_detail', args=[self.slug])
#views.py
from django.views import generic
from django.views.generic import ListView, DetailView
from django.http import Http404
from .models import Post, Report, News, Member, Project
class Home(ListView):
model = Post
context_object_name = 'home'
template_name = 'blog/home.html'
class HomeDetail(generic.DetailView):
model = Post
context_object_name = 'details'
template_name = 'blog/details.html'
class NewsListView(ListView):
model = News
context_object_name = 'newss'
template_name = 'blog/news.html'
class NewsDetailView(DetailView):
model = News
context_object_name = 'news'
template_name = 'blog/news_detail.html'
#app/urls.py
from django.urls import path, re_path
from . import views
from .views import Home, HomeDetail, Contact, ReportListView, ReportDetailView, NewsListView, NewsDetailView
app_name = 'blog'
urlpatterns = [
# post views
path('', Home.as_view(), name='home'),
path('home/<slug:slug>/', HomeDetail.as_view(), name='details'),
path('news/', NewsListView.as_view(), name='news_list'),
path('news/<slug:slug>/', NewsDetailView.as_view(), name='news_detail'),
path('contact/', Contact.as_view(), name='contact'),
]
#project/urls.py
from django.conf import settings
from django.conf.urls.static import static
from django.contrib import admin
from django.urls import path, include
urlpatterns = [
path('admin/', admin.site.urls),
path('', include('blog.urls', namespace='blog')),
path('ckeditor/', include('ckeditor_uploader.urls')),
path('members/', include('blog.urls', namespace='members')),
path('news/', include('blog.urls', namespace='news')),
path('contact/', include('blog.urls', namespace='contact')),
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
Now my template file for new list has the following block of codes and the objects are rendered :
<div class="row">
{% for news in newss %}
<div class="col-lg-4 wow fadeInUp" data-wow-delay="100ms">
<!--News Two Single-->
<div class="news-two__single">
<div class="news-two__img-box">
<div class="news-two__img">
{% if news.image_header %}
<img src={{ news.image_header.url }} alt="{{ news.news_title }}">
{% endif %}
<a href={{ news.get_absolute_url }}>
<i class="fa fa-plus"></i>
</a>
</div>
<div class="news-two__date">
<p>{{ news.nw_publish |date:"M d, Y" }}</p>
</div>
</div>
<div class="news-two__content">
<ul class="list-unstyled news-two__meta">
<li><i class="far fa-user-circle"></i> {{ news.news_author }}</li>
</ul>
<h3>
<a href={{ news.get_absolute_url }}>{{ news.news_title }}</a>
</h3>
<p class="news-two__text">{{ news.news_body | truncatechars:110 | safe }}</p>
</div>
</div>
</div>
{% endfor %}
</div>
On my home page, I need to achieve something like the following:
news page
I added the following code to render the object, but it's blank:
<div class="row">
<div class="col-xl-6 col-lg-6">
{% for news in newss %}
<div class="news-one__left">
<div class="news-one__img">
<img src={% static "assets/images/blog/news-one-img-1.jpg" %} alt="">
<a href="{{news.get_absolute_url}}">
<i class="fa fa-plus"></i>
</a>
</div>
<div class="news-one__bottom">
<ul class="list-unstyled news-one__meta">
<li>20 Jan, 2021</li>
<li><span>/</span></li>
</ul>
<h3 class="news-one__title">
{{ news.news_title }}
</h3>
</div>
</div>
{% endfor %}
</div>
</div>
The output looks like this:
homepage
My Django version is 3.27.2 and my python version is 3.6.8.
Sorry for such a silly question. I am trying to achieve:
All the news articles both on the home page and news page as a list
Show the first news in the left box and the rest of the 3 or 4 news in the right side box
But the output of the loop is not visible as per the attached image. Please point me to what I am doing wrong here. I am stuck for a while. Thanks in advance.

Slug URL turns into a number when navigating to the next link in django

I tried searching for this problem here but I didn't find anything, I hope someone can help answering or sending a link to a solution on stackoverflow...
I have been creating a blog, and when I click on the post title, it goes to 'post_details.html' and in the URL shows a slug with the post title. Like here:
examplename.com/blog/brooklyn-nets-at-miami-heat-preview/
But when I click to write a comment on the post it takes me to a form page, but the slug title disappear, it just shows the post number. Like this:
examplename.com/blog/3/add-comment
Can someone explain why is this happening? I want to know how to solve this and understand from where it comes this number that shows up.
Post_detail.html
{% block content %}
<h2 class="title">
<a class="post-title" href="{{ post.get_absolute_url }}">
{{ post.title }}
</a>
</h2>
<p class="date">
Publicado em {{ post.created }} por {{ post.author }}
</p>
{{ post.body|linebreaks }}
<hr>
<h3>Comments</h3>
{% if not post.comments.all %}
Nobody commented yet...Add a comment
{% else %}
Add a comment
{% for comment in post.comments.all %}
{{ comment.name }}
{{ comment.date }}
<br>
{{ comment.body }}
{% endfor %}
{% endif %}
<a class="swen" href="{% url 'blog:list' %}">More Articles</a>
{% endblock %}
urls.py
from unicodedata import name
from django.urls import path
from . import views
app_name = 'blog'
urlpatterns = [
path("", views.PostListView.as_view(), name="list"),
path("<slug:slug>/", views.PostDetailView.as_view(), name="detail"),
path("<slug:slug>/add-comment", views.CommentView.as_view(), name="commentview")
]
models.py
from django.contrib.auth.models import User
from django.db import models
from django.urls import reverse
class Post(models.Model):
title = models.CharField(max_length=255)
slug = models.SlugField(max_length=255, unique=True)
author = models.ForeignKey(User, on_delete=models.CASCADE)
body = models.TextField()
created = models.DateTimeField(auto_now_add=True)
updated = models.DateTimeField(auto_now=True)
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse ('blog:detail', kwargs={"slug":self.slug})
class Meta:
ordering = ("-created",)
class Comment(models.Model):
post = models.ForeignKey(Post, related_name="comments", on_delete=models.CASCADE)
name = models.CharField(max_length=255)
body = models.TextField()
date = models.DateField(auto_now_add=True)
slug = Post.slug
def __str__(self):
return reverse (self.post.title, self.name, self.post.slug)
views.py
from xml.etree.ElementTree import Comment
from django.views.generic import DetailView, ListView, CreateView
from .models import Post, Comment
class PostListView(ListView):
model = Post
class PostDetailView(DetailView):
model = Post
class CommentView(CreateView):
model = Comment
template_name = 'add_comment.html'
fields = '__all__'
you're passing pk which is a type integer as parameter instead of a slug at path name commentview. May be you should check on that.

Django template doesn't display the model items

sorry, I'm very new as a member (and as developer too). I've recently started to work with Django, and I'm trying to display on a page, a list of articles with some elements (title, image, created_at, content), already done in a model.
The views, the template and the path (urls) were bilt too. But when I Run the server and open the browser it only displays the title I passed as the render parameter in the view, not the object (articles = Article.objects.all()), created in the view.
blog/models.py
from email.mime import image
from email.policy import default
from tabnanny import verbose
from turtle import update
from unicodedata import category
from venv import create
from django.db import models
from ckeditor.fields import RichTextField
from django.contrib.auth.models import User
# Create your models here.
class Category(models.Model):
name = models.CharField(max_length=100, verbose_name='name')
description = models.CharField(max_length=250, verbose_name='description')
create_at = models.DateTimeField(auto_now_add=True, verbose_name='created_at')
class Meta:
verbose_name = 'Category'
verbose_name_plural= 'Categories'
def __str__(self):
return self.name
class Article(models.Model):
title= models.CharField(max_length=150, verbose_name="title")
content= RichTextField(verbose_name='Content')
image= models.ImageField(default='null', verbose_name="Image")
public = models.BooleanField(verbose_name="Public?")
user= models.ForeignKey(User, verbose_name="User", on_delete=models.CASCADE )
categories = models.ManyToManyField(Category, verbose_name='Category', blank=True)
create_at= models.DateTimeField(auto_now_add=True, verbose_name="Created at")
update_at= models.DateTimeField(auto_now=True, verbose_name="update at")
class Meta:
verbose_name = 'Article'
verbose_name_plural= 'Articles'
def __str__(self):
return self.title
blog/views.py
from django.shortcuts import render
from blog.models import Article, Category
# Create your views here.
def list(request):
articles = Article.objects.all()
return render(request, 'articles/list.html', {
'title' : 'Articles',
'articles': articles
} )
blog/list.html
{% extends 'layouts/layout.html' %}
{% block title %}
{{title}}
{% endblock %}
{% block content %}
<h1 class= "title">{{title}}</h1>
{% for article in articles %}
<article class="article-item">
{% if article.image != 'null' and article.image|length >= 1 %}
<div class="image ">
<img src="{{article.image.url}}" />
</div>
{% endif %}
<div class="data">
<h2>
{{article.title}}
</h2>
<span class="date">{{article.create_at}}</span>
<p>{{article.content|safe}} </p>
</div>
<div class="clearfix"></div>
</article>
{%endfor%}
{% endblock %}
Any help will be very appreciated
It looks like the whole block content is not rendered - Do you have a {% block content %} in the layout.html? You can check in your browser if the source code contains the html of the content block and just the tags are missing

Variables are not rendering

I’m making a blog site. And I have been trying to render from a model, RecentPosts, objects rpost1, etc. in my template blogs -file base.html which is my blog's details page.
But it is not rendering. Is there a solution?
File views.py
from django.http import HttpResponse
from django.shortcuts import render
from blog.models import Post
from django.contrib import messages
from django.views.generic import ListView, DetailView
from .models import Post, RecentPosts, Comment, Contact, Populars
from datetime import datetime
from .forms import CommentForm
def index(request):
return render(request, 'index.html')
def path(request):
return render(request, 'blog.html')
def cv(request):
return render(request, 'cv.html')
class HomeView(ListView):
model = Post
template_name = 'listview.html'
class ArticleDetailView(DetailView):
model = Post
template_name = 'base2.html'
def rpost(request):
template_name = "blogs-base.html"
rpost = RecentPosts.objects.all()
context = {'rpost': 'rpost'}
return render(request, template_name, context)
This is the URL portion.
File urls.py
from django.urls import path
from . import views
from .views import HomeView, ArticleDetailView, contact, Comment_page, popular
urlpatterns = [
path('', views.index, name='index'),
path('index.html', views.index, name='index'),
path('cv.html', views.cv, name='cv'),
path('blogs/', views.HomeView.as_view(), name="blogs"),
path('blogs/<slug:slug>', ArticleDetailView.as_view(), name='base2'),
path('contact/', views.contact, name='contact'),
path('contact.html/', views.contact, name='contact'),
path('comment.html/', views.Comment_page, name='comment'),
path('popular', views.popular, name='popular'),
]
This is the model portion.
File models.py
from django.db import models
from django.contrib.auth.models import User
from django.urls import reverse
from django.utils.timezone import now
# Create your models here.
class Post(models.Model):
title = models.CharField(max_length=120)
author_name = models.CharField(max_length=120)
author_description = models.CharField(max_length=120)
body = models.TextField(default='')
slug = models.CharField(max_length = 130)
timestamp = models.DateTimeField(auto_now=True)
def get_abosolute_url(self):
return reverse()
class Comment(models.Model):
post = models.ForeignKey('Post', on_delete=models.CASCADE, related_name='comments')
user = models.CharField(max_length=200)
message = models.TextField()
timestamp = models.DateTimeField(auto_now=True)
def __str__(self):
return self.user.capitalize() + ' : ' + self.message[0:16] + '........'
class Contact(models.Model):
email = models.CharField(max_length=20)
message = models.CharField(max_length=200)
models.CharField(max_length=200)
class RecentPosts(models.Model):
rpost1 = models.CharField(max_length=120)
rpost2 = models.CharField(max_length=120)
rpost3 = models.CharField(max_length=120
)
File blogs-base.html
<a href="marketing-single.html" class="list-group-item list-group-item-action flex-column align-items-start">
<div class="w-100 justify-content-between">
<img src="assets/blog-uploads/ad.png" alt="" class="img-fluid float-left">
{% for i in rpost %} <h5 class="mb1">{{i.rpost1}}</h5>
<small>12 Jan, 2016</small>{% endfor %}
</div>
</a>
This is the listview where I’m posting only my blog's thumbnails.
File listview.html
{% extends 'blogs-base.html' %}
{% load static %}
{% block title %}{{post.title}}{% endblock %}
{% block content %}
{% for post in object_list %}
<div class="col-lg-6">
<div class="blog-box">
<div class="post-media">
<a href="marketing-single.html" title="">
<img src="{% static 'website/assets/blog-uploads/ad.png' %}" alt="" class="img-fluid">
<div class="hovereffect">
<span class=""></span>
</div><!-- end hover -->
</a>
</div><!-- end media -->
<div class="blog-meta">
<h4>{{post.title}}</h4>
<small></small>
<small>20 July, 2017</small><br><br>
</div><!-- end meta -->
</div><!-- end blog-box -->
</div><!-- end col -->
{% endfor %}
{% endblock %}
You made a mistake in your context. You're are passing a string of 'rpost' instead of
context = { "rpost" : rpost }

relation "blog_blog" does not exist - error in Django app

I am to write simple Django blog application.
Django Version: 2.0.4
http://dpaste.com/0H62TQY - this is error output. ( I hope it's safe to show this file all over the Internet =) )
models.py look like
from django.db import models
from django.shortcuts import reverse
from django.template.defaultfilters import slugify
from django.utils import timezone
class Blog(models.Model):
author = models.ForeignKey('auth.User', on_delete=models.PROTECT)
title = models.CharField(max_length=500)
body = models.TextField()
created_at = models.DateTimeField(default=timezone.now)
slug = models.SlugField(default='', editable=False, unique=True, blank=False, null=False)
class Meta:
verbose_name_plural = "blog"
def __str__(self):
return self.title
def get_absolute_url(self):
kwargs = {'slug': self.slug}
return reverse('blog_detail', kwargs=kwargs)
def save(self, *args, **kwargs):
self.slug = slugify(self.title)
super().save(*args, **kwargs)
views.pylook like
from django.views.generic import DetailView, ListView
from .models import Blog
class HomeView(ListView):
template_name = 'blog/blog.html'
queryset = Blog.objects.order_by('-created_at')
class BlogDetail(DetailView):
model = Blog
template_name = 'blog/blog-detail.html'
urls.py look like
from django.urls import path, re_path
from . import views
urlpatterns = [
path(r'', views.HomeView.as_view(), name='home'),
re_path(r'^(?P<slug>[-\w]*)/$', views.BlogDetail.as_view(), name='blog_detail'),
]
This is my blog.html
{% for blog in blog_list %}
<div class="item-blog-txt p-t-33">
<h4 class="p-b-11">
<a class="m-text24" href="{{ blog.get_absolute_url }}">
{{ blog.title }}
</a>
</h4>
<div class="s-text8 flex-w flex-m p-b-21">
<span>
{{ blog.author }}
<span class="m-l-3 m-r-6">|</span>
</span>
</div>
<p class="p-b-12">
{{ blog.body|linebreaksbr }}
</p>
<a class="s-text20" href="{{ blog.get_absolute_url }}">
Continue Reading
<i aria-hidden="true" class="fa fa-long-arrow-right m-l-8"></i>
</a>
</div>
{% endfor %}
blog-detail.html look like <a href="{{ blog.get_absolute_url }}"> and {{ blog.title }} and can say everything.
If you need something else to show, email me.
makemigrations and migrate was made.
Thank you very much.
It was the problem in database.
It was a new project so I could also just delete and start a new database.

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