使用 Django Paginate 重复查询集的 Django 无限滚动
Django Infinite scroll using Django Paginate repeating the queryset
简介: 我正在使用下面的 link 为我的项目添加无限滚动 https://simpleisbetterthancomplex.com/tutorial/2017/03/13/how-to-create-infinite-scroll-with-django.html
下面是 github 代码 link
https://github.com/sibtc/simple-infinite-scroll
link 展示了如何为 function based views
和 class based views
添加无限滚动。我已将其添加到我的基于函数的视图中,并且效果很好。
问题: 我的 post-列表中有 8 posts class-based view
。添加 paginate_by = 3
后,我只能看到 8 个 post 中的 3 个 post。每次我向下滚动时,这 3 post 都会无限循环地重复
我的观点:
class Postlist(SelectRelatedMixin, ListView):
model = Post
select_related = ('user', 'group')
paginate_by = 3
context_object_name = 'post_list'
template_name = 'posts/post_list.html'
def get_queryset(self):
queryset = super(Postlist, self).get_queryset().order_by('-created_at')
query = self.request.GET.get('q')
if query:
queryset = queryset.filter(
Q(title__icontains=query)|
Q(user__username__iexact=query)|
Q(user__first_name__iexact=query)|
Q(user__last_name__iexact=query)
)
return queryset
我的 Base.html:(我在 JS 文件夹中有以下文件,它们适用于我的 FBV)
<script src="{% static 'js/jquery-3.1.1.min.js' %}"></script>
<script src="{% static 'js/jquery.waypoints.min.js' %}"></script>
<script src="{% static 'js/infinite.min.js' %}"></script>
{% block javascript %}{% endblock %}
我的post_list.html:
<div class="col-md-8">
<div class="infinite-container">
{% for post in post_list %}
<div class="infinite-item">
{% include "posts/_post.html" %} <!---This code is good---->
</div>
{% empty %}
some code
{% endfor %}
</div>
<div class="loading" style="display: none;">
Loading...
</div>
{% if page_obj.has_next %}
<a class="infinite-more-link" href="?page={{ post_list.next_page_number }}">More</a>
{% endif %}
</div>
{% block javascript %}
<script>
var infinite = new Waypoint.Infinite({
element: $('.infinite-container')[0],
onBeforePageLoad: function () {
$('.loading').show();
},
onAfterPageLoad: function ($items) {
$('.loading').hide();
}
});
</script>
{% endblock %}
在模板中,我将 post_list
替换为 page_obj
,请参见下面的代码。做到了
{% if post_list.has_next %}
<a class="infinite-more-link" href="?page={{page_obj.next_page_number }}">More</a>
{% endif %}
简介: 我正在使用下面的 link 为我的项目添加无限滚动 https://simpleisbetterthancomplex.com/tutorial/2017/03/13/how-to-create-infinite-scroll-with-django.html
下面是 github 代码 link https://github.com/sibtc/simple-infinite-scroll
link 展示了如何为 function based views
和 class based views
添加无限滚动。我已将其添加到我的基于函数的视图中,并且效果很好。
问题: 我的 post-列表中有 8 posts class-based view
。添加 paginate_by = 3
后,我只能看到 8 个 post 中的 3 个 post。每次我向下滚动时,这 3 post 都会无限循环地重复
我的观点:
class Postlist(SelectRelatedMixin, ListView):
model = Post
select_related = ('user', 'group')
paginate_by = 3
context_object_name = 'post_list'
template_name = 'posts/post_list.html'
def get_queryset(self):
queryset = super(Postlist, self).get_queryset().order_by('-created_at')
query = self.request.GET.get('q')
if query:
queryset = queryset.filter(
Q(title__icontains=query)|
Q(user__username__iexact=query)|
Q(user__first_name__iexact=query)|
Q(user__last_name__iexact=query)
)
return queryset
我的 Base.html:(我在 JS 文件夹中有以下文件,它们适用于我的 FBV)
<script src="{% static 'js/jquery-3.1.1.min.js' %}"></script>
<script src="{% static 'js/jquery.waypoints.min.js' %}"></script>
<script src="{% static 'js/infinite.min.js' %}"></script>
{% block javascript %}{% endblock %}
我的post_list.html:
<div class="col-md-8">
<div class="infinite-container">
{% for post in post_list %}
<div class="infinite-item">
{% include "posts/_post.html" %} <!---This code is good---->
</div>
{% empty %}
some code
{% endfor %}
</div>
<div class="loading" style="display: none;">
Loading...
</div>
{% if page_obj.has_next %}
<a class="infinite-more-link" href="?page={{ post_list.next_page_number }}">More</a>
{% endif %}
</div>
{% block javascript %}
<script>
var infinite = new Waypoint.Infinite({
element: $('.infinite-container')[0],
onBeforePageLoad: function () {
$('.loading').show();
},
onAfterPageLoad: function ($items) {
$('.loading').hide();
}
});
</script>
{% endblock %}
在模板中,我将 post_list
替换为 page_obj
,请参见下面的代码。做到了
{% if post_list.has_next %}
<a class="infinite-more-link" href="?page={{page_obj.next_page_number }}">More</a>
{% endif %}