Django DetailView 计数增加 3 而不是 1

Question

我有一个网页，每个浏览量都按 3 计算并递增，而本应递增 1

这是我 views.py

中的内容

from django.views.generic import ListView, DetailView
class MovieDetail(DetailView):
    model = Movie

    def get_object(self):
        object = super(MovieDetail, self).get_object()
        object.views_count += 1
        object.save()
        return object

    def get_context_data(self, **kwargs):
        context = super(MovieDetail, self).get_context_data(**kwargs)
        context['links'] = MovieLink.objects.filter(movie=self.get_object())
        context['related_movies'] = Movie.objects.filter(category=self.get_object().category)
        return context

html

<section class="movie">
                    <img src="{{object.image.url}}">
                    <ul>
                        <li>{{object}}</li>
                        <li>{{object.description}}</li>
                        <li><a href="genre.html">Adventure</a>, <a href="genre.html">Drama</a>, <a href="genre.html">Romance</a></li>
                        <li><a href="">{{object.cast}}</a></li>
                        <li><i class="fa fa-eye" id="eye"></i> {{object.views_count}}</li>
                    </ul>
                </section>

计划递增 1 但不遵循该逻辑..这里出了什么问题？

Answer 1

get_object() 在处理您的视图时可能会被多次调用。例如，您可以将代码移动到 render_to_response() 方法。还要确保使用 F() expressions.

增加数据库字段

from django.db.models import F


class MovieDetail(DetailView):
    model = Movie

    def render_to_response(self, *args, **kwargs):
        self.object.views_count = F('views_count') + 1
        self.object.save()
        return super().render_to_response(*args, **kwargs)

Django DetailView 计数增加 3 而不是 1

Django DetailView count increases by 3 instead of 1

html

python

django

html