tree structure of parent child relation in django templates

Question

how do i implement the tree structure in django templates with out using django-mptt.

i have model.

class Person(TimeStampedModel):
    name  = models.Ch         


        

Answer 1

These are great answers but I consolidated a bit and put it on the actual model.

class RecursiveThing(models.Model):

    name = models.CharField(max_length=32)
    parent = models.ForeignKey('self', related_name='children', blank=True, null=True)

    def as_tree(self):
        children = list(self.children.all())
        branch = bool(children)
        yield branch, self
        for child in children:
            for next in child.as_tree():
                yield next
        yield branch, None

And then in your template:

    {% for thing in things %}
        {% for branch, obj in thing.as_tree %}
            {% if obj %}
                
{{ obj.name }}
                {% if branch %}
                    

                {% else %}
                    
                {% endif %}
            {% else %}
                {% if branch %}
                    
                {% endif %}
            {% endif %}
        {% endfor %}
    {% endfor %}