正文
Django入门与实践-第21章:迁移(完结)
小程序:扫一扫查出行
【扫一扫了解最新限行尾号】
复制小程序
【扫一扫了解最新限行尾号】
复制小程序
http://127.0.0.1:8000/boards/1/
python manage.py migrate #boards/models.py
class Topic(models.Model):
views = models.PositiveIntegerField(default=0) # <- here python manage.py makemigrations
python manage.py migrate #boards/views.py def topic_posts(request, pk, topic_pk):
topic = get_object_or_404(Topic, board__pk=pk, pk=topic_pk)
topic.views += 1
topic.save()
return render(request, 'topic_posts.html', {'topic': topic}) <!--templates/topics.html-->
{% for topic in topics %}
<tr>
<td><a href="{% url 'topic_posts' board.pk topic.pk %}">{{ topic.subject }}</a></td>
<td>{{ topic.starter.username }}</td>
<td>{{ topic.replies }}</td>
<td>{{ topic.views }}</td> <!-- here -->
<td>{{ topic.last_updated }}</td>
</tr>
{% endfor %}