Django-Template : Get Variables in a Tag block !

Question

I need to retrieve an optional number saved in DB , to a custom template tag i made . which to retrieve , a variable ( a photo ID ) included in this Gallery . within the gallery

Answer 1

I had the same problem problem and after reading the docs, I solved it using this

class LatestPhotoNode(Node):
    def __init__(self, num):
        self.num = template.Variable(num)

    def render(self, context):
        num = self.num.resolve(context)
        photo = Photo.objects.filter(akar=num)[:1]
        context['recent_photos'] = photo
        return ''

If you are trying to render multiple variables, using json.dumps is very useful.