Django-Taggit: 如何打印使用最多的标签？

Question

我其实在我的Django应用中使用了Django-Tagging。我想知道有没有什么方法可以打印出最常用的标签。我试过Django-Taggit-Templatetags，但是它不管用……（这是我关于这个问题的未解答提问）。有人能帮我吗？

Answer 1

我的解决方案可能有点不太正规，但它有效。你可以试试：

from collections import defaultdict, Counter
from taggit.models import Tag
from .models import YourModel

tag_frequency = defaultdict(int)


for item in YourModel.objects.all():
    for tag in item.tags.all():
        tag_frequency[tag.name] += 1

Counter(tag_frequency).most_common()

在基于类的视图中，这可能看起来像这样：

from collections import defaultdict, Counter
from taggit.models import Tag
from .models import YourModel


class YourView(ListView):
    model = YourModel
    context_object_name = "choose_a_name_you_like"
    template_name = "yourmodel/yourmodel_list.html"

    def get_context_data(self):
        context = super(YourView, self).get_context_data() # assigns the original context to a dictionary call context
        tag_frequency = defaultdict(int)

        for item in YourModel.objects.all():
            for tag in item.tags.all():
                tag_frequency[tag.name] += 1

        context['tag_frequency'] = Counter(tag_frequency).most_common() # adds a new item with the key 'tag_frequency' to the context dictionary, which you can then access in your template
        return context

Answer 2

Django 1.10，Python 3.5，django-taggit 0.21.3

YourModel.tags.most_common()

还有前10个标签：

YourModel.tags.most_common()[:10]