django如何向后追踪关系？

Question

I am having some issue with following relationships backwards. From the parent page i want to be able to see what children belong to that parent. Heres what i got so far

model.py

class Parents(models.Model):
        name = models.CharField()

class Child(models.Model):
    parent = models.ForeignKey(Parent, related_name='children')
    child_name = models.CharField()

views.py

def parents(request):
    return render_to_response('dashboard/parent.html', {'parents': Parents.objects.all() })

parent.html

{% for parent in parents %}

            <tr>
                <td><a href="/parent/get/{{ parent.id }}/">{{ parent.id }}</a></td>
                <td><a href="/parent/get/{{ parent.id }}/">{{ parant.name }}</a></td>
                <td><a href="/parent/get/{{ parent.id }}/">{{ parent.children.child_name }}</a></td>
            </tr>

            {% endfor %}

            </tbody>
        </table>
    </div>
{% endblock %}

Answer 1

As Daniel Roseman mentioned you possibily have more than one child per parent, thus you have to get the whole set of children and iterate over it.

You can get this set with: parent.children_set.all()