Django內置的分頁器—

Django內置的分頁器——paginator


from django.shortcuts import render,HttpResponse
from mysite.models import *
form django.core.paginator import Paginator,EmptyPage,PageNotInteger

def index(request):
    Booklist = []
    
   for i in range(251):
        Booklist.append(Book(title="book"+str(i),price=30+i*i))
    Book.objects.bulk_create(Booklist)

    #分頁器的使用
    
    book_list = Book.objects.all()
    paginator = Paginator(book_list,10)

    print("count:",paginator.count) #數據總數
    print("num_pages",paginator.num_pages) #總頁數
    print("page_range",paginator.page_range) #頁碼的列表

    page1 = paginator.page(1)
    for i in page1:
        print(i)
    
    print(page1.object_list)

    page2 = paginator.page(2)

print(page2.has_next()) 

print(page2.next_page_number())

print(page2.has_previous())

print(page2.previous_page_number())

2.show.html頁面

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" 
    integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
</head>
<body>

<div class="container">

    <h4>分页器</h4>
    <ul>

        {% for book in book_list %}
             <li>{{ book.title }} -----{{ book.price }}</li>
        {% endfor %}

     </ul>


    <ul class="pagination" id="pager">

                 {% if book_list.has_previous %}
                    <li class="previous"><a href="/index/?page={{ book_list.previous_page_number }}">上一页</a></li>
                 {% else %}
                    <li class="previous disabled"><a href="#">上一页</a></li>
                 {% endif %}


                 {% for num in paginator.page_range %}

                     {% if num == currentPage %}
                       <li class="item active"><a href="/index/?page={{ num }}">{{ num }}</a></li>
                     {% else %}
                       <li class="item"><a href="/index/?page={{ num }}">{{ num }}</a></li>

                     {% endif %}
                 {% endfor %}



                 {% if book_list.has_next %}
                    <li class="next"><a href="/index/?page={{ book_list.next_page_number }}">下一页</a></li>
                 {% else %}
                    <li class="next disabled"><a href="#">下一页</a></li>
                 {% endif %}

            </ul>
</div>


</body>
</html>

3.擴展

請參考https://www.cnblogs.com/clschao/articles/10478846.html