I'm trying to build a page with all of the model's categories and associated entries in one view. I followed tips from here django class based views for all categories with all entires and here Get all categories and items in category but I still can't get it to work. Any ideas ?
-- models
class Category(models.Model):
name = models.CharField(max_length=50)
def __unicode__(self):
return self.name
class Feed(models.Model):
name = models.CharField(max_length=100)
url = models.CharField(max_length=100)
category = models.ForeignKey(Category)
user = models.ManyToManyField(User)
def __unicode__(self):
return self.url
-- views
def category_page(request):
object_list = Category.objects.all()
context = {'object_list': object_list,}
return render(request, 'category_page.html', context)
-- template category_page.html
{% block content %}
{% for category in object_list %}
{{ category.name }}
{% for entry in category.entry_set.all %}
{{ category.name}}
{% endfor %}
{% endfor %}
{% endblock content %}
I'm getting list of all categories displayed but no entries.
thanks
-M
Here
{% for entry in category.entry_set.all %}
{{ category.name}}
{% endfor %}
should be
{% for entry in category.feed_set.all %}
{{ entry.name}}
{% endfor %}
{{ category.name}} inside the forloop for entries is what is not displaying the correct name.
Also, what is entry_set ? If you are not specifying a related_name, you need to use the lower-case model name to get the related objects (feed_set in this case).
Something like this:
category.feed_set.all
Summing it up,
{% block content %}
{% for category in object_list %}
{{ category.name }}
{% for entry in category.feed_set.all %}
{{ entry.name}}
{% endfor %}
{% endfor %}
{% endblock content %}
You can read more on related objects here
If this is your actual code, the problem is variable names in your template.
{% for category in object_list %}
{{ category.name }}
{% for entry in category.feed_set.all %}
{{ entry.name}}
{% endfor %}
{% endfor %}
Specifically, you refer to entry_set, but that's not the reverse name for the relationship since your model name is Feed rather than Entry and you haven't declared a non-default related_name argument.
Also, you're re-printing your category name instead of the name of the Feed instances.
Related
How can I actually pick up values from my model in a customised template?
Let's assume for this example, the model for Request has an attribute "title".
Following views.py:
class RequestModelView(ModelView):
datamodel = SQLAInterface(Request)
extra_args = {'my_extra_arg':Request}
show_template = 'show_request.html'
list_columns = ['title','description','request_status']
and here the show_requests.html
{% extends "appbuilder/general/model/show.html" %}
{% block show_form %}
This Text is before the show widget
{{ super() }}
This Text is shown below..
<hr>
{{ (self.title) }}; {{pk}}; {{pk['title']}}
{% endblock %}
In which variable can I find my object?
The only parameter that works is {{pk}} (it shows the ID of the Request).
I was thinking of something like item['title']
Thanks.
A very similar question was asked on their Github. I think you would have to use something along these lines:
views.py
class RequestModelView(ModelView):
datamodel = SQLAInterface(Request)
list_columns = ['title','description','request_status']
add_template = 'show_request.html'
#expose('/show_request', methods=['GET', 'POST'])
#has_access
def show_request(self):
get_filter_args(self._filters)
self.extra_args = {'item': list_columns}
return super(RequestModelView, self).add()
show_requests.html:
{% extends "appbuilder/general/model/show.html" %}
{% block show_form %}
This Text is before the show widget
{{ super() }}
This Text is shown below..
<hr>
{{ item['title'] }}
{% endblock %}
Documentation is certainly not very clear in this aspect, but please check template-extra-arguments
I'm not sure if you would still need extra_args = {'my_extra_arg':Request}.
The following example should make things clear:
from .models import cars
beautiful_names = ["John", "Jane", "Bob"]
flowers = ["Aster", "Buttercup", "Roses"]
class IndexView(View):
template_name = "dashboard/dashboard_index.html"
def get(self, request, *args, **kwargs):
all_car_objects=cars.objects.all()
return render(request,
self.template_name,
context={"my_addresslist": beautiful_names,
"my_rose_list": roses},
"all_cars":all_car_objects)
In your template you can then do something like:
<h1>Beautiful Names</h1>
{% for name in my_addresslist %}
<p>{{ name }}</p>
{% endfor %}
<h1>Roses</>
{% if my_rose_list %}
{% for rose in my_rose_list %}
<p>{{ rose }}</p>
{% endfor %}
{% endif %}
<h1>Cars</>
{% if all_cars %}
{% for car in all_cars %}
<div>
<p>{{ car.name }}</p>
<p>{{ car.make }}</p>
<p>{{ car.model }}</p>
</div
{% endfor %}
{% endif %}
So for your example, it comes down to this:
class MyView(ModelView):
datamodel = SQLAInterface(MyTable)
extra_args = {'my_request_list':Request}
show_template = 'show_request.html'
<h1>Requests</>
{% if my_request_list %}
{% for request in my_request_list %}
<p>{{ request }}</p>
{% endfor %}
{% endif %}
I have two models:
Tutorial
--> consist of published manager which returns queryset when is_published=True
Category
In template, I am passing Category object.
{% for category in categories %}
{% for tutorial in category.tutorial_set.all %}
{{ tutorial.title }}
{% endfor %}
{% endfor %}
Instead of getting all, I want to get from published manager like: Tutorials.published.all()
How to achieve this?
Well I guess you can do something like
class TutuorialManager(models.Manager):
def published(self):
return self.filter(is_published = True)
then in the views you can do something like..
{% for category in categories %}
{% for tutorial in category.tutorial_set.published.all %}
{{ tutorial.title }}
{% endfor %}
{% endfor %}
models:
class ProductOpinion(models.Model):
user = models.ForeignKey(User)
product = models.ForeignKey(Product)
point = models.IntegerField()
class Product(models.Model):
name = models.CharField(max_length=255)
How to display in my template point of my ProductOpinion?
def index(request):
products = Product.objects.all()
return render_to_response('index.html',{'products':products}, context_instance=RequestContext(request))
template:
{% for p in products %}
{{ p.point }}
{% endfor %}
If yout want to acces the point field you have to do something like this:
{% for p in products %}
{% for productoption in p.productoptions_set.all %}
{{ productoption.point }}
{% endfor %}
{% endfor %}
You need to use:
{{ p.productopinion_set.all }}
I have models like this
class Blog(models.Model):
name = models.CharField(max_length=100)
tagline = models.TextField()
def __unicode__(self):
return self.name
class Entry(models.Model):
blog = models.ForeignKey(Blog)
headline = models.CharField(max_length=255)
I want to list all blogs in a page. I have written a view such that
def listAllBlogs(request):
blogs= Blog.objects.all()
return object_list(
request,
blogs,
template_object_name = "blog",
allow_empty = True,
)
And I can display tagline of blog such that in view
{% extends "base.html" %}
{% block title %}{% endblock %}
{% block extrahead %}
{% endblock %}
{% block content %}
{% for blog in blog_list %}
{{ blog.tagline }}
{% endfor %}
{% endblock %}
But I would like to show, such thing blog__entry__name but I don't know how can I achive this in template.
Also, there may be no entry in a blog. How can I detect in template ?
Thanks
To access blog entries (Related Manager): blog.entry_set.all
To do other actions if blog have no entries, you have the {% empty %} tag that is executed when the set is empty.
{% block content %}
{% for blog in blog_list %}
{{ blog.tagline }}
{% for entry in blog.entry_set.all %}
{{entry.name}}
{% empty %}
<!-- no entries -->
{% endfor %}
{% endfor %}
{% endblock %}
based on your code you could do the following.
{% block content %}
{% for blog in blog_list %}
{{ blog.tagline }}
{% for entry in blog.entry_set.all %}
{{entry.name}}
{% endfor %}
{% endfor %}
{% endblock %}
I have a template showing a list of events. To prepare list of events I'm using generic views, and set 'paginate_by' parameter. Strangely when I load my page I see :
TemplateSyntaxError at /event/latest/
Caught an exception while rendering: 'int' object is not iterable
in 9th line of pagination.html template :
{% if is_paginated %}
{% load i18n %}
<div class="pagination">
{% if page_obj.has_previous %}
<< Prev
{% else %}
<span class="disabled prev"><< Prev</span>
{% endif %}
#here {% for page in pages %}
{% if page %}
{% ifequal page page_obj.number %}
<span class="current page">{{ page }}</span>
{% else %}
{{ page }}
{% endifequal %}
{% else %}
...
{% endif %}
{% endfor %}
{% if page_obj.has_next %}
Next >>
{% else %}
<span class="disabled next">Next >></span>
{% endif %}
</div>
{% endif %}
Here is my view :
def events_nearest(request):
events = Event.nearest.all()
return object_list(request,
queryset = events,
extra_context = {'title': 'Nearest events'},
paginate_by = 12,
template_name = 'event/events_date.html')
And model :
class NearestManager(models.Manager):
def get_query_set(self):
return super(NearestManager, self).get_query_set().order_by('-data')
class Event(models.Model):
category = models.ForeignKey(Category)
title = models.CharField(max_length=120)
slug = models.SlugField(max_length=255, unique=True, verbose_name='Slug')
about = models.TextField()
city = models.ForeignKey(City)
objects = models.Manager()
nearest = NearestManager()
Any ideas what can cause this ?
pages variable is the number of pages, which is int and hence the error: 'int' object is not iterable
you should be looping over page_range
{% for page in page_range %}
I met the same error. There is a note at
https://docs.djangoproject.com/en/dev/topics/pagination/
Changed in Django Development version: Previously, you would need to use {% for contact in contacts.object_list %}, since the Page object was not iterable.
So {% for page in pages.object_list %} could probably solve your problem.
For anybody stumbled upon this post:
As with Django 1.4 and later (as far as I know), the iterable object for pagination is now paginator.page_range , i.e. the for loop should be
{% for page_num in paginator.page_range %}
In your error line #9 {% for page in pages %} what exactly is pages
Can't see it in your code anywhere.