I'm trying to make individual pages for each author showing their name and posts. I can't seem to get the username displayed.
views.py
class UserProfileView(generic.ListView):
template_name = 'howl/user-profile.html'
context_object_name = 'user_howls'
def get_queryset(self):
author = self.request.user
u = User.objects.get(username=author)
return Howl.objects.filter(author=u)
models.py
class Howl(models.Model):
author = models.ForeignKey(User, null=True)
content = models.CharField(max_length=150)
Here is where I'm stuck.
user-profile.html
{% extends 'howl/base.html' %}
{% block content %}
<h1>User: {{user_howl.author}}</h1>
{% for user_howl in user_howls %}
<ul>
<li>{{user_howl.content}}</li>
</ul>
{% endfor %}
{% endblock %}
The content is displayed just fine, but the heading just says "User: ", how do I give it a context without using a for loop?
I've tried:
{% for author in user_howls.author %}
<h1>User: {{author}}</h1>
{% endfor %}
and
{% if user_howls.author %}
<h1>User: {{user_howl.author}}</h1>
{% endif %}
Still the same outcome, displaying "User: "
user_howls is a queryset so it won't have an author attribute, you need to get the author of the iterated object
{% for howl in user_howls %}
<h1>User: {{ howl.author}}</h1>
{% endfor %}
More to the point though, it doesn't make sense to start from a Howl list, when you are just returning the results for the user_profile, nor does it make sense to use a ListView. so instead, start from the user and then look up its howls
user_obj.howl_set.all()
Since your queryset is based on the posts belonging to the current user, you can shortcut all of this and just show the user directly:
User: {{ user }}
Related
I am creating a database website with python and django. My problem is that the content I try to get data from my class' fields doesn't appear on the id-page on django. I am able to make a successful search, and I get links for my searches. The name-field is visible in searches and on the page, but nothing else appears. When I click on the link, I go to luokka_id/number. I must be missing something but can't figure out what the problem is.
models.py
class luokka(models.Model):
nimi = models.CharField('Pääkäyttöluokka', max_length=100)
vara = models.CharField('Varakäyttöluokka', max_length=100)
varaaja = models.CharField('Varakäyttöluokka', max_length=100)
def __str__(self):
return self.nimi
and on the näytä_luokka.html (show class):
{% extends 'tietokanta/base.html' %}
{% block content %}
<center>
{{luokkalistaus}}
{{luokka}}
{{ luokka.nimi }}
{{ luokka.vara }}
{{ luokka.varaaja }}
</center>
{% endblock %}
and views.py:
def näytä_luokka(request, luokka_id):
luokkalistaus = luokka.objects.get(pk=luokka_id)
return render(request, 'tietokanta/näytä_luokat.html',
{'luokkalistaus': luokkalistaus})
I don't get any errors to help me out here. It's just an empty page, but it should show some extra data.
You have named the key of context as luokkalistaus not luokka, so the template should be:
{% extends 'tietokanta/base.html' %}
{% block content %}
<center>
{{ luokkalistaus.nimi }}
{{ luokkalistaus.vara }}
{{ luokkalistaus.varaaja }}
</center>
{% endblock %}
I have an object that contains a Many-to-Many field. I'm trying to iterate this field in Django template, but apparently I can't. Let me show you the code first.
models.py:
class Book(models.Model):
title = models.CharField(max_length = 100, blank=True)
category = models.ManyToManyField(Category)
def __str__(self):
return self.title
views.py:
def book_list(request):
books = Book.objects.all().order_by('-pk')
context = {
'books' : books,
}
return render(request, 'contents/book_list.html', context)
Template file:
{% for b in books %}
<div>
{{b.title}}
{% for cat in b.category %}
{{cat}}
{% endfor %}
</div>
{% endfor %}
Now I get 'ManyRelatedManager' object is not iterable error. How do I iterate the field and show all the category in each object?
It's because if you call b.category it returns only the relation object. To get its values (category objects) you have to add .all. Like this:
{% for b in books %}
<div>
{{ b.title }}
{% for cat in b.category.all %}
{{cat}}
{% endfor %}
</div>
{% endfor %}
By the way, I've also changed c.title to b.title, because I assume you want this book title, not something from global.
I am building a BlogPost Webapp, AND i am stuck on an Error.
models.py
Post Model
class Post(models.Model):
post_owner = models.ForeignKey(User,default='',null=True,on_delete = models.CASCADE)
post_title = models.CharField(max_length=500,default='')
views.py
def friends_posts(request,user_id):
posts = Post.objects.filter(post_owner=user_id)
profiles = get_object_or_404(Profile,user_id=user_id)
p = request.user.profile
you = p.user
friends = p.friends.all()
context = {'posts':posts,'profiles':profiles,'friends':friends}
return render(request, 'friends_posts.html', context)
urls.py
path('friends_posts/<int:user_id>/',views.friends_posts,name='friends_posts'),
friends_posts.html
{% for user_p in friends %}
{{ user_p.posts.all }}
{% endfor %}
The Problem
friends_posts page is not showing Friends posts.
It is showing all the information of friends but NOT showing the posts of friends.
What i am trying to do
I am trying to show all the posts of friends of request.user.
I don't know what to do.
Any help would be appreciated.
Thank You in Advance.
Try:
{% for user_p in friends %}
{% for post in user_p.user.post_set.all %}
<p>Title: {{post.post_title}}
<br />
{% endfor %}
{% endfor %}
According to your models p.friends.all() return Profile model queryset. When you are trying to display user_p.friends.posts.all all posts from all user friends this fails because of friends is M2M field on Profile model and it doesn't have attribute called posts. If you really need all posts from all friends to be displayed, then you should iterate over frieds first:
{% for friend in user_p.friends.all %}
{% for post in fried.user.post_set.all %}
{{ post }}
{% endfor %}
{% endfor %}
I am trying to render a model with a relationship but I am not able to do so.
class LogBook(models.Model):
name = models.CharField(max_length=50, verbose_name="Nom du registre de maintenance")
members = models.ManyToManyField(User)
class LogMessages(models.Model):
logbook = models.ForeignKey(LogBook)
message = models.CharField(max_length=200, verbose_name="Détail du problème")
class LogDone(models.Model):
logmessage = models.ForeignKey(LogMessages)
message = models.CharField(max_length=200)
My view:
log = get_object_or_404(LogBook, pk=log_id)
logmessages = LogMessages.objects.filter(logbook=log_id)
My template
{% for logmessage in logmessages.all %}
{{logmessage.logdone.message}}
{{% endfor %}}
But the logdone object is not showing, any idea ?
Since your LogMessage model has a foreign key to log done, it's not a One to One relation and you have to access the related LogDone objects using the _set notation. There's also a slight typo, I believe. It should logmessages and not logmessages.all
{% for logmessage in logmessages %}
{% for done in logmessage.logdone_set.all %}
{{ done.message }}
{% endfor %}
{% endfor %}
I forgot that I added a related_name equal to "logdones" so I did the following :
{% for logmessage in logmessages %}
{% for done in logmessage.logdones.all %}
{{ done.message }}
{% endfor %}
{% endfor %}
And now it is working, thanks to #Vishal
i have 3 models:
Book, Topiccenter and EntryBook.
these are model definitions:
class Book(models.Model):
title = models.TextField()
language = models.TextField()
class Topiccenter(models.Model):
title = models.TextField():
description = models.TextField()
class EntryBook(models.Model):
book = models.ForeignKey(Book,related_name="b_entries")
topiccenter = models.ForeignKey(Topiccenter,related_name="tc_books")
Now I am in Topiccenter T. and i search for books and get all books in DB. As you see, each book can be in multiple topiccenters.
What i want to do is, in the search result, i want to show whether each book is contained in current Topiccenter or not:
I will take all books books = Book.objects.all() and the current topiccenter as tc and render them to template and in template,
{% for book in books %}
{% for entry in book.b_entries.all %}
{% if entry.topiccenter.id == tc.id %}
already in this Topiccenter
{% else %}
add to this topiccenter
{% endif %}
{% endfor %}
{% endfor %}
but the problem is that one book is in two topiccenters and in template i am getting both already in this Topiccenter and add to this topiccenter which is nonesense. How can i repair my logic so that I can check if the book in this current topiccenter, and if not, show them add button
thanks
See how you can move it to the view. In this case, get all books associated with the tc and send that in the context.
Now, the template logic would be:
{% for book in books %}
{% if book in tc_books %}
already in this Topiccenter
{% else %}
add to this topiccenter
{% endif %}
{% endfor %}
Where (in the view)
tc_books = Books.objects.filter(b_entries__topiccenter = tc)
and send that in the context