How to pass data (specific fiiled) from views.py to models.py - django

Question

I have a problem. How can i pass the data (def maybe) from models.py
I need this for filter by category in future
class Tag(models.Model):
.......
category = models.ForeignKey(Category, null=True, on_delete=models.PROTECT, related_name='category', verbose_name='Tag category')
......
def get_category(self):
return self.category
To views.py. This is it doesn't work
class GetDetailTag(DetailView):
model = Tag
template_name = 'main/catalog.html'
context_object_name = 'tag'
category = Tag.get_category
def get_context_data(self, *, object_list=None, **kwargs):
context = super().get_context_data(**kwargs,)
context['pansion_in_tag_list'] = Pansions.objects.filter(tags__slug=self.kwargs['slug'])
context['tags_in_category'] = Tag.objects.filter(category__slug = '...INSERT THE DATA FROM MODEL HERE...')
return context
I was trying to call the 'def'(get_category) in views.py
Anyway? How i can to do that?

Answer 1

You can just obtain this from the tag, so:
{{ tag.category }}
or in the DetailView:
class TagDetailView(DetailView):
model = Tag
template_name = 'main/catalog.html'
context_object_name = 'tag'
def get_context_data(self, *, object_list=None, **kwargs):
context = super().get_context_data(object_list=object_list, **kwargs)
context['pansion_in_tag_list'] = Pansions.objects.filter(
tags__slug=self.kwargs['slug']
)
context['tags_in_category'] = Tag.objects.filter(
category_id=self.object.category_id
)
# category = self.object.category (obtain the category)
return context