Genering dedicated urls with slugs

Question

I asked in past time about how generate an url with similar caracterist starting from an ID you said me that is better use slugs to do that. On this time I wanna generate dinamics urls with slugs. My objective is obtain this result:

I have five products that I named cards in models.py (Ysera, Neltharion, Nozdormu, Alexstrasza, Malygos). I need the respective url of each of the products:

localhost:8000/card/ysera

localhost:8000/card/neltharion

localhost:8000/card/nozdormu ... etc.

I try to generate these urls but i dont know if I made a good applying of commands, either I don't know how I can specify the id card like the main name of the card (ysera, neltharion...). I was trying to follow an answer posted here in this community a little blind and this is my "reconfiguration":

Here my views.py:

from django.shortcuts import render_to_response
from django.template import RequestContext
from dracoin.apps.synopticup.models import card
from dracoin.apps.home.forms import ContactForm,LoginForm
from django.core.mail import EmailMultiAlternatives

from django.contrib.auth import login,logout,authenticate
from django.http import HttpResponseRedirect

def shop(request):
    tarj = card.objects.filter(status=True)
    ctx = {'tarjetas':tarj}
    return render_to_response('home/shop.html',ctx,context_instance=RequestContext(request))


def singleCard(request, slug, id):
    try:
        tarj = card.objects.get(slug=slug, id=id_tarj)
    except ObjectDoesNotExist:
        tarj = get_object_or_404(card, id=id_tarj)
        return render_to_response('home/singleCard.html',ctx,context_instance=RequestContext(request))

My urls.py (I have an urls.py by app and the main urls.py):

url(r'^card/(?P<slug>[-\w]+)/(?P<id_tarj>\d+)/$','dracoin.apps.home.views.singleCard',name='vista_single_card'),

My models.py:

class card(models.Model):
    nombre = models.CharField(max_length=100)
    descripcion = models.TextField(max_length=300)
    status = models.BooleanField(default=True)

    def __unicode__(self):
        return self.nombre

My common template for all cards:

{% extends 'base.html' %}
{% block title %} Tarjeta {{card.nombre}} {% endblock %}
{% block content %}

<h1>{{ card.nombre }}</h1><br> 
<p> {{ card.descripcion }}</p>        

{% endblock %}

I don't know if my slug building in views.py was find, I'm convinced that the urls.py is bad but i don't know how build it?

please excuse me if I edit my own question to prolong it, Recently I'm trying to learn django by my side and I have many gaps in my learning

apologizeme in advance my extensive question and if I overlook something.

Thanks!!

Answer 1

This line:

tarj = card.objects.get(slug=slug, id=id_tarj)

tries to load a card object where the id field is set to is id_tarj and the slug field is set to slug. Your model does not have a field named slug. You will need to add one.

A good candidate for it would be a SlugField - https://docs.djangoproject.com/en/dev/ref/models/fields/#slugfield

You will need to make sure that your slug field contains a proper value in each case.