Python实战计划学习笔记（18）分页器实战

步骤

1. 构建models.py，通过mongoengine读取数据库，定义ArtiInfo类

from django.db import models
from mongoengine import *

# Create your models here.
class ArtiInfo(Document):
    price = StringField()
    title = StringField()
    pub_date = StringField()
    cates = ListField(StringField())
    look = StringField()
    area = ListField(StringField())
    url = StringField()

    meta = {'collection':'sample'}

2. 在views中使用paginator库

from django.core.paginator import Paginator
from pure_layout_blog.models import ArtiInfo

3. 在views.py中使用paginator

def index2(request):
    limit = 4
    arti_info = ArtiInfo.objects
    paginator = Paginator(arti_info,limit)  #按limit数进行分页
    page = request.GET.get('page',1)  #get URL中的page参数
    loaded = paginator.page(page)
    context = {
        'ArtiInfo':loaded    #页面中使用ArtiInfo作为当前页的对象
    }

    return render(request,'index2.html',context)

4. 插入html代码

            

                {% if ArtiInfo.has_previous %}
                     《《《Pre 
                {% endif %}
                {{ ArtiInfo.number }} of {{ ArtiInfo.paginator.num_pages }} 
                {% if ArtiInfo.has_next %}
                    Next》》》
                {% endif  %}