CODEWITHSUNDEEP
pythonhtmldjango
CodyBugstein
CodyBugstein

Reputation: 23302

Display all model data inside html page

I'm trying to build a website that has products and categories.

When you are on the page of a product, you can click a button to see a list of all the categories it falls under. You can click another button, that appears on all pages, to see a list of all the categories overall.

In the html page see_all_categories, I wrote a simple block like this:

{% extends 'base.html' %}
{% load staticfiles %}

{% block content%}

    {{Category.all}}

{% endblock content %}

I expect to see a messy printout of all the categories but I don't. It doesn't return an error, but it produces nothing, other than the base.html.

What am I doing wrong?

Upvotes: 0

Views: 86

Answers (2)

CodyBugstein
CodyBugstein

Reputation: 23302

I figured out the solution after many long annoying hours of trying everything. I feel dumb but I want to spare the next guy the massive pain in the two-pack.

This is what I did:

In the Views.py, I changed the view function for this page FROM this:

def view_all_categories(request):
    context = {'Category' : Category}
    return render(request, 'store/see_all_categories.html', context)

TO this

def view_all_categories(request):
    all_cats = Category.objects.all().order_by('id')
    context = {'all_categories' : all_cats}
    return render(request, 'store/see_all_categories.html', context)

and in the page see_all_categories.html itself, I changed it (from the question) TO this:

{% extends 'base.html' %}
{% load staticfiles %}

{% block content%}
    {% for cat in all_categories %}
         <p>{{ cat.name }}</p>
    {% endfor %}
{% endblock content %}

And now it works!!

Upvotes: 0

Depado
Depado

Reputation: 4929

You want to display a list of the categories. I assume your Category model owns an attribute named "title" which is the representation of your Category.

If you're using Django template engine or Jinja2, you can make a for loop inside your template like this :

{% for cat in Category.objects.all %}
<a href="#">{{ cat.title }}</a>
{% endfor %}

As a troubleshooting, I'd suggest you didn't pass your Category model to your template, that is not done automatically. You have to add your model to the context before rendering the template.

As mentionned in the comments, here is doc for template rendering with Django templates.
Django Template Guide

To add your model to the context you can follow this guide.
I don't intend to help you further because I lack of information and that may vary a LOT according to your settings. (Class Based views ? Function based views ? What kind of template are you using... And so on)

Upvotes: 1

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