Question

i want to ask a question that how can i increment a model field in django.
lets suppose i have a model called

class my bookmarks(requests):

  url=models.URLField()
  popularity=models.IntegerField()

and then by using Django template
i have

bookmarks.html

{% for database in list_tagg %}

URL:{{database.url}}

POPULARITY: {{database.popularity}}

{% endfor %}

Now: if anyone clicks on the link (i.e. the URL field in the bookmarks.html page) I would like that the popularity should be increased by 1. How can i do so? Any help?

Answer 1

Use F-fields ,)

from django.db.models import F

b = Bookmark.objects.get(pk=id_retrieved)
b.popularity = F('popularity') + 1
b.save()