I have this Django model in my newspaper app:
class Article(models.Model):
title = models.CharField(max_length=255)
body = models.TextField()
date = models.DateTimeField(auto_now_add=True)
author = models.ForeignKey(
get_user_model(),
on_delete=models.CASCADE,
)
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('article_detail', args=[str(self.id)])
It currently displays all articles but I want to limit what is displayed to the 3 most recent articles. How is that done?
This is my view:
class ArticleListView(LoginRequiredMixin, ListView):
model = Article
template_name = 'article_list.html'
login_url = 'login'
This is the html template:
{% extends 'base.html' %}
{% block title %}Articles{% endblock title %}
{% block content %}
{% for article in object_list %}
<div class="card">
<div class="card-header">
<span class="font-weight-bold">{{ article.title }}</span> ·
<span class="text-muted">by {{ article.author }} | {{ article.date }}</span>
</div>
<div class="card-body">
<p>{{ article.body }}</p>
Edit
Delete
</div>
<div class="card-footer">
{% for comment in article.comments.all %}
<p>
<span class="font-weight-bold">{{ comment.author }} ·</span>
{{ comment }}
</p>
{% endfor %}
</div>
</div>
<br />
{% endfor %}
{% endblock content %}
In your (assumed) ListView you should define the queryset, something like
class ArticleListView(LoginRequiredMixin, ListView):
model = Article
template_name = 'article_list.html'
login_url = 'login'
queryset = Article.objects.order_by('-date')[:3]
More on this here.
Related
so im trying to seperate my blog posts into different categories but right now it all just appears as my username
blogcategory.html
{% extends "base.html" %}
{% block page_content %}
<div class="col-md-8 offset-md-2">
<h1>{{ category | title }}</h1>
<hr>
{% for post in posts %}
<h2>{{ post.title }}</h2>
<small>
{{ post.created_on.date }} |
Categories:
{% for category in post.categories.all %}
<a href="{% url 'blogcategory' category.name %}">
{{ category.name }}
</a>
{% endfor %}
</small>
<p>{{ post.body | slice:":400" }}...</p>
{% endfor %}
</div>
{% endblock %}
blogdetail.html
{% extends "base.html" %}
{% block page_content %}
<div class="col-md-8 offset-md-2">
<h1>{{ post.title }}</h1>
<small>
{{ post.created_on.date }} |
Categories:
{% for category in post.categories.all %}
<a href="{% url 'blogcategory' category.name %}">
{{ category.name }}
</a>
{% endfor %}
</small>
<p>{{ post.body | linebreaks }}</p>
<h3>Leave a comment:</h3>
<form action="/blog/{{ post.pk }}/" method="post">
{% csrf_token %}
<div class="form-group">
{{ user.username|default:'Guest' }}
</div>
<div class="form-group">
{{ form.body }}
</div>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
<h3>Comments:</h3>
{% for comment in comments %}
<p>
On {{comment.created_on.date }}
<b>{{ user.username|default:'Guest'}}</b> wrote:
</p>
<p>{{ comment.body }}</p>
<hr>
{% endfor %}
</div>
{% endblock %}
blogindex
{% extends "base.html" %}
{% block page_content %}
<div class="col-md-8 offset-md-2">
<h1>Blog Index</h1>
<hr>
{% for post in posts %}
<h2>{{ post.title }}</h2>
<small>
{{ post.created_on.date }} |
Categories:
{% for category in post.categories.all %}
<a href="{% url 'blogcategory' category.name %}">
{{ category.name }}
</a> blo
{% endfor %}
</small>
<p>{{ post.body | slice:":400" }}...</p>
{% endfor %}
</div>
{% endblock %}
models.py
from django.db import models
class Category(models.Model):
name = models.CharField(max_length=20)
class Post(models.Model):
title = models.CharField(max_length=255)
body = models.TextField()
created_on = models.DateTimeField(auto_now_add=True)
last_modified = models.DateTimeField(auto_now=True)
categories = models.ManyToManyField("Category", related_name="posts")
class Comment(models.Model):
author = models.CharField(max_length=180)
body = models.TextField()
created_on = models.DateTimeField(auto_now_add=True)
post = models.ForeignKey("Post", on_delete=models.CASCADE)
views.py
from django.shortcuts import render
from .forms import CommentForm
from .models import Post, Comment
def blogindex(request):
posts = Post.objects.all().order_by("-created_on")
context = {"posts": posts}
return render(request, "blogindex.html", context)
def blogcategory(request, category):
posts = Post.objects.filter(
categories__name__contains=category
).order_by(
'-created_on'
)
context = {
"category": category,
"posts": posts
}
return render(request, "blog_category.html", context)
def blogdetail(request, pk):
post = Post.objects.get(pk=pk)
comments = Comment.objects.filter(post=post)
form = CommentForm()
if request.method == "POST":
form = CommentForm(request.POST)
if form.is_valid():
comment = Comment(
author=form.cleaned_data["author"],
body=form.cleaned_data["body"],
post=post,
)
comment.save()
context = {"post": post, "comments": comments, "form": form}
return render(request, "blogdetail.html", context)
realistically i should be able to make post be of certain categories and click on those categories when i see them. But for some reason, the categories default to the username aof the person who made it and cant be changed. Please help.
models.py
from django.db import models
from django.urls import reverse
# Create your models here.
class Post(models.Model):
title = models.CharField(max_length=256)
author = models.CharField(max_length=256)
coverphoto_link = models.CharField(max_length=1000, blank=True)
text = models.TextField()
photo_link = models.CharField(max_length=1000,blank=True)
date = models.DateTimeField(auto_now_add=True)
def get_absolute_url(self):
return reverse("basic_app:article", kwargs = {'pk':self.pk})
class Comment(models.Model):
post = models.ForeignKey(Post,related_name='comments', on_delete = models.CASCADE)
name = models.CharField(max_length=300)
body = models.TextField()
date_added = models.DateTimeField(auto_now_add=True)
def __str__(self):
return self.name
article.html
{% include 'base1.html' %}
{% load static %}
<br>
<div class="container" id='container_article'>
<div class="container2">
<h1>{{ article_detail.title }}</h1>
<p class="author_detail" style="color: rgb(0, 4, 255);">{{ article_detail.author }} | {{article_detail.date }}</p>
<br>
<img id="photo" src="{{ article_detail.photo_link }}">
</div>
<p id="articletext">{{ article_detail.text }}</p>
<br>
<br>
<hr>
<!--- HERE --->
<h2>Comments...</h2>
{% if not post.comments.all %}
No comments yet...Add one
{% else %}
{% for comment in post.comments.all %}
<strong> {{ comment.name }} - {{ comment.date_added }}</strong>
<br>
{{ comment.body }}
<br>
{% endfor %}
<hr>
{% endif %}
</div>
{% include 'footer.html' %}
THe main problem is that I created comments at the admin secction, all good, but the page is still displaying "No comments yet...".See the <!--- HERE ---> part, there is the problem.I also registered the app and the model at admin.py.
I would ty this instead:
{% for comment in post.comments.all %}
<strong> {{ comment.name }} - {{ comment.date_added }}</strong>
<br>
{{ comment.body }}
<br>
{% empty %}
No comments yet...Add one
{% endfor %}
I don't think this is correct:
{% if not post.comments.all %}
I just can't figure it out for a very long time, I made a conclusion of comments to posts from the admin panel. But I just can't figure out how to make a comment form right under the post for users to comment. Thanks to all!
models.py
class Post(models.Model):
photo = models.ImageField(upload_to='media/photos/',null=True, blank=True)
name_barber = models.CharField(max_length=30)
description = models.TextField(blank=True, null=True)
def __str__(self):
return self.description[:10]
class Comment(models.Model):
post = models.ForeignKey(Post, related_name='comments', on_delete=models.CASCADE)
name = models.CharField(max_length=30)
body = models.TextField(null=True)
add_date = models.DateTimeField(auto_now_add=True)
enter code here
def __str__(self):
return '%s - %s' % (self.post, self.name)
form.py
class CommentForm(ModelForm):
class Meta:
model = Comment
fields = ('name', 'body')
views.py
class HomePage(ListView):
model = Post
template_name = 'main/index.html'
context_object_name = 'posts1'
class BarbersPage(ListView):
model = Post
template_name = 'main/barbers.html'
context_object_name = 'posts'
urls.py
urlpatterns = [
path('',views.HomePage.as_view(),name='index'),
path('barbers/',views.BarbersPage.as_view(), name='barbers'),
]
barbers.html
{% for post in posts %}
<img src="{{MEDIA_URL}}{{post.photo.url}}" width="800" />
<h3>
{{ post.name_barber}}
</h3>
<p>{{ post.description}}</p>
<h3> Comments.. </h3>
{% if not post.comments.all %}
no comments yet...Add one
{% else %}
{% for comment in post.comments.all %}
<strong>
{{ comment.name }}
{{ comment.add_date }}
</strong>
<p>{{comment.body }}</p>
<br>
{% endfor %}
{% endif %}
{% endfor %}
You will need to add a form block below the post for users to add a comment.
Something like this:
{% for post in posts %}
<img src="{{MEDIA_URL}}{{post.photo.url}}" width="800" />
<h3>
{{ post.name_barber}}
</h3>
<p>{{ post.description}}</p>
<h3> Comments.. </h3>
{% if not post.comments.all %}
no comments yet...Add one
{% else %}
{% for comment in post.comments.all %}
<strong>
{{ comment.name }}
{{ comment.add_date }}
</strong>
<p>{{comment.body }}</p>
<br>
{% endfor %}
{% endif %}
Add Comment:<br/>
<form method="post" action="/AddComment">
<input type="hidden" id="postid" value="{{post.id}}"/>
<input type="text" id="newcomment" size="50"/><input type="submit" value="Submit"/>
</form><br/>
{% endfor %}
You will need to decide where to submit the comment data and update the action attribute in the form.
I'm making a Post and Comment model by taking reference from internet. i created and Post and Comment model and it looks ok in django admin panel. i can add post and also a comment to any particular post. but getting trouble when I'm trying to display the comment under the post in templates(under post detail views). PLEASE HELP
models.py
class Post(models.Model):
author = models.ForeignKey(User,on_delete=models.CASCADE)
title = models.CharField(max_length=100)
content = RichTextField()
tags = models.CharField(max_length=50,blank=True,null=True)
date_posted = models.DateTimeField(default=timezone.now)
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('post-detail',kwargs={'pk':self.pk})
class Comment(models.Model):
post = models.ForeignKey(Post,on_delete=models.CASCADE)
author = models.ForeignKey(User,max_length=50,on_delete=models.CASCADE)
text = models.TextField()
create_date = models.DateTimeField(default=timezone.now)
def get_absolute_url(self):
return reverse('discuss')
views.py
class PostDetailView(DetailView):
model = Post
def add_comment_to_post(request,pk):
return get_object_or_404(Post,pk=pk)
if request.method == "POST":
form = CommentForm(request.POST)
if form.is_valid():
comment = form.save(commit=False)
comment.post= post
comment.save()
return redirect('post-detail',pk=post.pk)
else:
form = CommentForm()
return render(request, 'discuss/comment_form.html',{'form':form})
def comment_remove(request,pk):
comment = get_object_or_404(Comment,pk=pk)
post_pk = comment.post.pk
comment.delete()
return redirect('post-detail', pk=post_pk)
post_detail.html
{% extends 'index.html' %}
{% block content %}
<article class="media content-section">
<div class="medaia-body">
<img class="rounded-circle article-img" src="{{ object.author.profile.image.url }}" alt="image not found">
<div class="article-metedata">
<a class="mr-2" href="{% url 'user-posts' object.author.username %}">{{object.author}}</a>
<small class="text-muted">{{ object.date_posted|date:"F d, Y"}}</small>
</div>
<h2 class="article-title">{{ object.title }}</h2>
<img class="query-img" src="{{ object.image.url }}" alt="image not found">
<p class="article-content">{{ object.content|safe }}</p>
</div>
</article>
{% if object.author == user %}
<div class="post-update-delete">
<button class="btn btn-outline-primary">Edit Post</button>
<button class="btn btn-outline-primary">Delete Post</button>
</div>
{% endif %}
<hr>
<a class="btn btn-primary btn-comment" href="{% url 'add_comment_to_post' pk=post.pk %}">Add Comment</a>
<!-- ############################### ABOVE CODE IS WORKING ############################# -->
<!-- ########################## GETTING PROBLEM IN BELLOW CODE ######################### -->
{% for comment in object.comments.all %}
{% if user.is_authenticated %}
{{ comment.create_date }}
{{ comment.text|safe|linebreaks }}
{{ comment.author }}
{% endif %}
{% empty %}
<p>No Comment</p>
{% endfor %}
{% endblock %}
in post_deatil.html i also tried {% for comment in post.comments.all %} but it is also not working
Since you did not specify a related_name=… parameter [Django-doc], the related_name is by default comment_set, so you iterate over the comments with:
{% for comment in object.comment_set.all %}
…
{% endfor %}
Note: It is normally better to make use of the settings.AUTH_USER_MODEL [Django-doc] to refer to the user model, than to use the User model [Django-doc] directly. For more information you can see the referencing the User model section of the documentation.
In my site I have 2 sections for users. The user posts page and the profile page. The profile page has all their info on it, so username, description, first/last name, etc. And the user posts page has all their posts on it. However, I want to integrate them together somehow.
Here is some of the code.
Here is the view for the User Posts
class UserPostListView(ListView):
model = Post
template_name = 'mainapp/user_posts.html'
context_object_name = 'posts'
def get_queryset(self):
user = get_object_or_404(User,username=self.kwargs.get('username'))
return Post.objects.filter(author=user).order_by('-published_date')
As you can see, I am returning the specific users posts.
And now here is my profile view
def view_profile(request,pk=None):
if pk:
user_profile = User.objects.get(pk=pk)
else:
user_profile = request.user
context = {'user':user_profile}
return render(request,'mainapp/profile.html',context)
It returns all the user's info.
Here is the HTML code for both the profile and user posts page
{% block content %}
<div class="profile-page-container">
<div class="profile-page-info">
<div class="profile-page-banner">
<div class="profile-page-banner-background">
<!-- <img src="https://cdn.pixabay.com/photo/2017/08/30/01/05/milky-way-2695569_960_720.jpg" alt="{{ user }}'s Background Image" > -->
</div>
<div class="profile-page-banner-text">
<h2 title="{{ user }}" id="username-profile-page">{{ user|safe|linebreaksbr|truncatechars_html:25 }} {% if user.userprofileinfo.verified %} <span class="image-profile-verified"><img draggable="false" title="Verified User" class="verifed" src="{% static 'images\verified.png' %}" alt="verified" width="25" height="25" srcset=""></span> {% endif %}</h2>
<p>{{ user.first_name }} {{ user.last_name }}</p><br>
</div>
</div>
<div class="profile-page-user-desc-box">
<p>{{ user.userprofileinfo.description }}</p>
<p>{{ user.userprofileinfo.website }}</p>
<p>{{ user.userprofileinfo.joined_date |date:"F d Y" }}</p>
</div>
<br>
{% if user.userprofileinfo.image %}
<img class="rounded-circle account-img" src="{{ user.userprofileinfo.image.url }}" alt="{{ user }}'s Profile Picture'">
{% endif %}
</div>
<div class="user-post-user-profile-page">
<h1 title="{{ user }}">Posts</h1>
{% for post in posts %}
<div class="content">
<div class="post">
<h1 class='posttitle'>{{ post.title }}</h1>
<img class="user-image" src="{{ post.author.userprofileinfo.image.url }}" alt="pfp" width="20%" height="20%">
{% if post.published_date %}
<!-- <div class="postdate">
<i class="fas fa-calendar-day"></i> <p>Posted {{ post.published_date|timesince }} ago</p>
</div> -->
<div class="posted-by">
<p>Posted by <strong>{{ post.author }}</strong> {{ post.published_date|timesince }} ago</p>
</div>
{% else %}
<a class="pub-post" href="{% url 'mainapp:post_publish' pk=post.pk %}">Publish</a>
{% endif %}
<p class='postcontent' >{{ post.text|safe|linebreaksbr }}</p>
</div>
</div>
{% endfor %}
</div>
</div>
{% endblock %}
And here is the user_posts page
{% block content %}
<div class="sidebar">
<p class="active" href="#">{{ view.kwargs.username }}</p>
<button class="commentbtn"><a class="aclass" href="#">Connect with {{ view.kwargs.username }}</a></button>
<p>{{ user.userprofileinfo.email }}</p>
<p>Lorem</p>
</div>
{% for post in posts %}
<div class="content">
<div class="post">
<h1 class='posttitle'>{{ post.title }}</h1>
<img class="user-image" src="{{ post.author.userprofileinfo.image.url }}" alt="pfp" width="20%" height="20%">
{% if post.published_date %}
<!-- <div class="postdate">
<i class="fas fa-calendar-day"></i> <p>Posted {{ post.published_date|timesince }} ago</p>
</div> -->
<div class="posted-by">
<p>Posted by <strong>{{ post.author }}</strong> {{ post.published_date|timesince }} ago</p>
</div>
{% else %}
<a class="pub-post" href="{% url 'mainapp:post_publish' pk=post.pk %}">Publish</a>
{% endif %}
<p class='postcontent' >{{ post.text|safe|linebreaksbr }}</p>
</div>
</div>
{% endfor %}
{% endblock %}
I have tried to merge the FBV into the CBV by cutting it and pasting it below the get_queryset method So like this
def get_queryset(self):
#... code here
def view_profile(request,pk=None):
#... code here
However this did not work. I am just curious as to how I can integrate both together so I can have the best of both worlds in one place
EDIT: Here are the models
class UserProfileInfo(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE,max_length=30)
first_name = models.CharField(max_length=50)
last_name = models.CharField(max_length=50)
description = models.CharField(max_length=150)
website = models.URLField(max_length=200)
image = ProcessedImageField(upload_to='profile_pics',
processors=[ResizeToFill(150, 150)],
default='default.jpg',
format='JPEG',
options={'quality': 60})
joined_date = models.DateTimeField(blank=True,null=True,default=timezone.now)
verified = models.BooleanField(default=False)
def __str__(self):
return f'{self.user.username} Profile'
def save(self, *args, **kwargs):
super().save(*args, **kwargs)
and now the post
class Post(models.Model):
author = models.ForeignKey(User,related_name='posts',on_delete=models.CASCADE)
title = models.CharField(max_length=75)
text = models.TextField()
group = models.ForeignKey(Group,null=True,blank=True,related_name='posts',on_delete=models.CASCADE)
created_date = models.DateTimeField(default=timezone.now)
image = models.ImageField(upload_to='post_images',blank=True,null=True)
file = models.FileField(upload_to='post_files',blank=True,null=True)
published_date = models.DateTimeField(blank=True,null=True,auto_now_add=True)
comments_disabled = models.BooleanField(default=False)
NSFW = models.BooleanField(default=False)
spoiler = models.BooleanField(default=False)
tags = TaggableManager()
def __str__(self):
return self.title
def save(self, *args, **kwargs):
super().save(*args, **kwargs)
Also in continuation to Ian answer, if you have a direct relationship between models then you can simply get the posts for the particular user like this:
def view_profile(request,pk=None):
if pk:
user_profile = User.objects.get(pk=pk)
user_posts = Posts.objects.filter(user__id=pk) #<---add these
else:
user_profile = request.user
user_posts = Posts.objects.filter(user__id = request.user.id) #<---add these
context = {
'user':user_profile,
'user_posts':user_posts
}
return render(request,'mainapp/profile.html',context)
A simple class based view for getting a user:
class UserDetailView(DetailView):
model = User
template_name = 'mainapp/profile.html'
context_object_name = 'user'
Relationships (foreign keys) can be followed backwards. Every foreign key has a reverse relationship defined (unless you set reverse_name to +...) it will usually be named <modelname>_set on the model referenced by the foreign key
For example, the following two lines are equivalent
Post.objects.filter(author=user)
user.post_set.all()
This can be used in your profile template
{% for post in user.post_set.all %}
...
{% endfor %}