python - 如何在 Django 中进行 ajax 分页？

Question

!!我有一个名为blog !!

的模型

class blog(models.Model):
    image          = models.ImageField(upload_to='Media/awards')
    title          = models.CharField(max_length=255,blank=True)
    content        = models.TextField(blank=True)

在前端我有

<div class="col-md-6" id= "mydiv">
<div>

 <!-- pagination design start -->
            <div class="blog_bottom_pagination">
              <div class="counter">/</div>
              <button class="paginate left"><i class="fas fa-angle-left"></i></button>
              <button class="paginate right">
                <i class="fas fa-angle-right"></i>
              </button>
            </div>
  <!-- pagination design end -->

我没有找到任何引用如何在不刷新页面的情况下实现分页并在该 div 部分中一次呈现两个数据。并通过按钮向右和向左分页以获取下两个数据，并将替换该 div 中的那些先前数据....提前感谢您

Answer 1

所以 View 端应该是这样的:

from django.core.paginator import Paginator, PageNotAnInteger, EmptyPage

blog_objects= Blog.objects.filter()

paginator = Paginator(blog_objects, 10)
page = request.GET.get('page', 1)

try:
    blogs = paginator.page(page)
except PageNotAnInteger:
    blogs = paginator.page(1)
except EmptyPage:
    blogs = paginator.page(paginator.num_pages)

page_list = blogs.paginator.page_range

在模板上触发 ajax 函数的按钮:

{% for i in page_list %}
<button onclick="ajax_function('{{i}}','{{title}}')">{{i}}</button>

注意“i”是 ajax 函数的页码，“title”是查询的参数。

来自模板的 Ajax 函数在最后......

Ajax View :

def paginate(request):
    page= request.GET.get('page', None)
    title= request.GET.get('title', None)
    
       starting_number= (page-1)*10
       ending_number= page*10

    "here you should multiply the 'page' by the number of results you want per page, in my example it's 10"
      


     result= Blog.objects.filter(title= title)[starting_number:ending_number]
    
"By [starting_number:ending_number] we specify the interval of results. Order them by date or whatever you want"
                data={result}
   
    return JsonResponse(data)

结果对象现在被发送到 html 端，现在是 ajax 函数的时间了:

function ajax_function(page,title) {
    $.ajax({
        url: '/ajax/paginate/',
        type: "get",
        data: {
            'page': page,
            'title': title,

        },
        dataType: 'json',
        success: function (data) {
             $('#id-of-your-choice').empty();
             for (i = 0; i < data.result.length; i++) {
             $('#id-of-your-choice').append(i)
        }
"at first the function cleans the old childs of the element on which you display your results then it appends the new page's content by iterating over 'results'"

希望这就是您要找的，玩得开心!