Django MPTT - breadcrumb in view function

[enemybass]

How to create breadcrumb in my view function?

    class Category(MPTTModel):

        name = models.CharField(max_length=50, verbose_name=u'Name')

        parent = TreeForeignKey('self', null=True, blank=True, related_name='children')

        slug = models.SlugField()

    class Product(models.Model):

        name = models.CharField(max_length=50, verbose_name=u'Name')

        slug = models.SlugField()

        category = models.ManyToManyField(Category, verbose_name=u'Category')

    #views

    def post_content(request, product_id):

        product = get_object_or_404(Product, id = product_id)

        return render_to_response('product_info.html', {'product':product},context_instance=RequestContext(request))

product_info.html

{{ product.name }}

I want in my single post info (`post_content`) breadcrumb with category.

Something like this:  Category > Subcategory > Sub-Subcategory .,,,

Someone told me to use get_ancestors:

Example:

{% for parent in category.get_ancestors %}

  <a href="{{ parent }}">{{ parent.name }}</a> &gt;

{% endfor %}

{{ category.name }}

How to implement this with my model?

Thank you. I would be grateful.

[Cal Leeming [Simplicity Media Ltd]]

Hi,

Personally, I tend to keep the breadcrumb logic completely separate from any custom code logic.

Instead, I have something like this:

context['breadcrumb'] = ['menu1', 'sub menu 2', 'sub sub menu 3']

And then in the templates, you'd have something like;

    {% if x.0 == 'menu1' %}

        do something custom here

    {% endif %}

{% for x in breadcrumb %}

    {{x}}

{% endfor %}

{% include "breadcrumb.html" %}

Although many would probably disagree with this approach, I have found that keeping breadcrumbs completely separate makes things easier down the line.. Otherwise you end up having to create a breadcrumb system that works with every use case.. and it often gets ugly.

The above is just my personal opinion based on our own specific use cases, and I would strongly recommend looking around at alternative ways of doing it, then finding one that suits what you need.

Hope this helps.

Cal

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