django_demo/blog/view.py

from django.http import JsonResponse,HttpResponse
from django.shortcuts import render

from blog.models import Blog
from django.core.paginator import Paginator # 引入分页功能


'''
url中传入两个参数: page(页号)和page_size(每页最多记录数)
参数错误时使用默认值
'''
def blog_list(request):
    # 默认第1页
    page = request.GET.get('page', 1)
    # 每页默认为20条
    page_size = request.GET.get('page_size', 20)
    # 所有blog记录
    blog_qs = Blog.objects.all()
    # 根据页号和每页最多记录数提取对应记录
    paginator = Paginator(blog_qs, page_size)
    current_page = paginator.get_page(page)

    blogs = current_page.object_list

    resp = {
        'blog_list': [
            {
                'id': blog.id,
                'title': blog.title,
            } for blog in blogs
        ]
    }
    return HttpResponse(resp.values())


def blog_detail(request,blog_id):
    blog = Blog.objects.get(id=blog_id)
    resp = {
        'blog': [
            {
                'id': blog.id,
                'title': blog.title,
                'content': blog.content,
                'author': {
                    'id': blog.author.id,
                    'username': blog.author.username,
                }
            }
        ]
    }
    return HttpResponse(resp.values())


def index(request):
    return render(request, 'blog/index.html')