Django提供了一個新的類來幫助管理分頁數據,這個類存放在django/core/paginator.py.它能夠接收列表、元組或其它可迭代的對象。本文將分三步介紹Django Paginator 分頁的實現步驟html
Django models前端
from django.db import models
class Subject(models.Model):
"""學科""」 no = models.AutoField(primary_key=True, verbose_name="編號") name = models.CharField(max_length=31, verbose_name="名稱") intro = models.CharField(max_length=511, verbose_name="介紹") def __str__(self): return self.name class Meta: db_table = 'tb_subject’ verbose_name_plural = "學科" 複製代碼
Django view 的配置django
from django.shortcuts import render
from django.core.paginator import Paginator, InvalidPage, EmptyPage, PageNotAnInteger
from vote.models import Subject
def show_subject(request):
"""查詢學科"""
#查詢Subject 表的全部數據
subjects = Subject.objects.all().order_by("no」) #使用Paginator模塊對數據分頁,一頁5條數據 paginator = Paginator(subjects, 5) #使用request.GET.get()函數獲取uri中的page參數的數值 page = request.GET.get('page') try: #經過獲取上面的page參數,查詢此page是否爲整數而且是否可用 subject_obj = paginator.page(page) except PageNotAnInteger: subject_obj = paginator.page(1) except (EmptyPage, InvalidPage): subject_obj = paginator.page(paginator.num_pages) return render(request, "vote/subject.html", {'subject_list': subject_obj}) 複製代碼
前端分頁代碼塊:bash
<div class="pull-right" style="margin-right: 480px;margin-top: 0px」> <!— 分頁功能--> <nav> <ul class="pagination」>
<!— 分頁功能前端的方向箭頭代碼-->
{% if subject_list.has_previous %}
<li class="enabled">
<a href="?page={{ subject_list.previous_page_number }}" aria-label="Previous">
<span aria-hidden="true">«</span>
</a>
</li>
{% endif %}
<!— 分頁功能顯示頁碼的中間部分代碼-->
{% for page_num in subject_list.paginator.page_range %}
{% if page_num == subject_list.number %}
<li class="active">
<a href="#">
{{ page_num }}
<span class="sr-only">(current)</span>
</a>
</li>
{% else %}
<li>
<a href="?page={{ page_num }}">{{ page_num }}
<span class="sr-only">(current)</span>
</a>
</li>
{% endif %}
{% endfor %}
<!— 分頁功能末端的方向箭頭代碼-->
{% if subject_list.has_next %}
<li class="enabled">
<a href="?page={{ subject_list.next_page_number }}" aria-label="last">
<span aria-hidden="true">»</span>
</a>
</li>
{% endif %}
</ul>
</nav>
</div>
複製代碼
(圖片來源於網絡)網絡
做者:任宏利函數
來源:宜信技術學院spa