Question

I am new to the Django web framework.

I have a template that displays the list of all objects. I have all the individual objects listed as a link (object title), clicking on which I want to redirect to another page that shows the object details for that particular object.
I am able to list the objects but not able to forward the object/object id to the next template to display the details.

views.py

def list(request):
    listings = listing.objects.all()
    return render_to_response('/../templates/listings.html',{'listings':listings})

def detail(request, id):
    #listing = listing.objects.filter(owner__vinumber__exact=vinumber)
    return render_to_response('/../templates/listing_detail.html')

and templates as:
list.html

{% for listing in object_list %}
<!--<li> {{ listing.title }} </li>-->
<a href="{{ listing.id }}">{{ listing.title}}</a><br>
{% endfor %}

detail.html

{{ id }}

Answer 1

The variables that you pass in the dictionary of render_to_response are the variables that end up in the template. So in detail, you need to add something like {'listing': MyModel.objects.get(id=vinumber)}, and then the template should say {{ listing.id }}. But hat’ll crash if the ID doesn’t exist, so it’s better to use get_object_or_404.

Also, your template loops over object_list but the view passes in listings — one of those must be different than what you said if it’s currently working….

Also, you should be using the {% url %} tag and/or get_absolute_url on your models: rather than directly saying href="{{ listing.id }}", say something like href="{% url listing-details listing.id %}", where listing-details is the name of the view in urls.py. Better yet is to add a get_absolute_url function to your model with the permalink decorator; then you can just say href="{{ listing.get_absolute_url }}", which makes it easier to change your URL structure to look nicer or use some attribute other than the database id in it.