Django框架基础知识10-内置分页系统

from django.shortcuts import render, redirect, reverse
from datetime import datetime
# Create your views here.
from django.http import HttpResponse, JsonResponse
from django.template.loader import get_template
from teacher.models import Student, StudentDetail, Grade
from crm.settings import UPLOAD_ROOT
from django.db.models import Q
from django.core.paginator import Paginator

def index(request):

　　students = Student.objects.all()
　　arg = {
　　'_meta': 'asdfadsfa'
}
　　format_str = '%Y-%m-%d %H:%M:%S'
　　return render(request, 'teacher/index.html', context={
　　　　'students': students,
　　'format_str': format_str,
　　'arg': arg
})

def login(request):
　　# url = reverse('teacher:detail', kwargs={'pk': 12})
　　# return redirect(url) # 硬编码

　　if request.method == 'POST':
　　　　username = request.POST.get('username', '')
　　　　password = request.POST.get('password', '')
　　if username == 'qixiang' and password == '123456':
　　　　return redirect(reverse('teacher:index'))

　　　　return render(request, 'teacher/login.html')

def detail(request, pk):
# pk 一般是个id 是整数 primary key

　　return HttpResponse('学生id为%s的详情页' % pk)

def students(request):
　　section = '学生列表'
　　# 获取查询参数
　　search = request.GET.get('search', '').strip()

　　if search:
　　if search.isdigit():
　　# 是qq，或者电话号码
　　sts = Student.objects.filter(Q(qq=search)|Q(phone=search), is_deleted=False).order_by('-e_time')
else:
　　# 说明是姓名
　　sts = Student.objects.filter(name__contains=search, is_deleted=False).order_by('-e_time')
else:
　　sts = Student.objects.filter(is_deleted=False).order_by('-e_time')

　　# 当前页码
　　page = request.GET.get('page', 1)
　　page = int(page)
　　# 每页显示多少数据
　　per_page = request.GET.get('per_page', 10)
　　per_page = int(per_page)

　　paginator = Paginator(sts, per_page)　　#将查询对象进行分页

　　sts = paginator.get_page(page) # 当前页的数据

　　return render(request, 'teacher/students.html', context={
　　　　'students': sts,
　　　　'section': section,
　　　　'search': search,
　　　　'per_page': per_page,
　　　　'page': page,
　　})

def students_api(request):
　　sex = request.GET.get('sex')
　　sex = int(sex)
　　students = Student.objects.values('name', 'age', 'sex', 'phone').filter(sex=sex)
　　students = list(students)
　　res = {'data': students}
　　return JsonResponse(res)