Question

我想在博客中创建所有帖子的年度存档，并将其作为JSON传递给我的应用。

我正在寻找下面的内容。

[
  {
    year:2017
    url:
    numbrofposts: 100
    months: [
              {
               month: Jan
               numberofposts: 10
               url:
               listofposts: [
                               { id:, title,url}
                               { id:, title,url} 
                            ]
              }
            ]
  }
  {
    year:2016
    numbrofposts: 500
    months: [
              {
               month: Jan
               numberofposts: 30
               listofposts: [
                               { id:, title, description, etc}
                               { id:, title, description, etc} 
                            ]
              }
            ]
  }
...
]

如果可能的话，如何添加分页因为帖子的数量将来会继续增加。我不确定分页是基于一年还是几个月

假设我有一个简单的帖子模型，标题和描述以及created_date

Answer 1

我建议您查看分页指南：http://www.django-rest-framework.org/api-guide/pagination/

从该指南：

只有在您使用通用视图或视图集时，才会自动执行分页。如果您使用的是常规APIView，则需要自行调用分页API以确保返回分页响应。有关示例，请参阅mixins.ListModelMixin和generics.GenericAPIView类的源代码。

Answer 2

我目前正在使用for循环来创建JSON，如下所示。

article_dict2 = []
months_names = ['January','February','March','April','May','June','July','August','September','October','November','December']
for i in range(articles[0].publish_date.year, articles[len(articles)-1].publish_date.year-1, -1):
    #number of articles per year
    year_count = Article.objects.filter(publish_date__year=i).count()
    if year_count != 0:
        article_dict2_object = {}
        article_dict2_object['year'] = i
        article_dict2_object['total'] = year_count
        article_dict2_object['months'] = []
        for month in range(13,1,-1):
            #number of articles per month
            count = Article.objects.filter(publish_date__year=i,publish_date__month=month).count()
            if count != 0:
                month_object = {}
                month_object['mnum'] = month
                month_object['name'] = months_names[month-1]
                month_object['count'] = count
                month_object['articles'] = PostSerializerCalendar(Article.objects.filter(publish_date__year=i,publish_date__month=month),many=True).data
                article_dict2_object['months'].append(month_object)
return Response(article_dict2)

以上是查询的有效方法还是有更好的方法。

我得到以下结果

[
    {
        "year": 2017,
        "total": 6,
        "months": [
            {
                "mnum": 10,
                "name": "October",
                "count": 1,
                "articles": [
                    {
                        "id": 58,
                        "title": "I, Me and Mine",
                        "publish_date": "2017-10-14 18:04 UTC",
                    }
                ]
            },
            {
                "mnum": 8,
                "name": "August",
                "count": 5,
                "articles": [
                    {
                        "id": 57,
                        "title": "Youth, Manhood and Old-age",
                        "publish_date": "2017-08-09 12:30 UTC",
                    },
                    {
                        "id": 56,
                        "title": "Enjoy the Eternal, not the Interval",
                        "publish_date": "2017-08-08 15:20 UTC",
                    },
                    {
                        "id": 55,
                        "title": "Setting a Bad Example",
                        "publish_date": "2017-08-05 12:30 UTC",
                    },
                    {
                        "id": 54,
                        "title": "Living a Long Life",
                        "publish_date": "2017-08-04 12:30 UTC",
                    },
                    {
                        "id": 53,
                        "title": "Dying in the Dark",
                        "publish_date": "2017-08-03 14:34 UTC",
                    }
                ]
            }
        ]
    }
   .......
]

我不确定如何在年级或月份或帖子中添加分页。如果我尝试月份或发布如何在下一页显示延续

Answer 3

试试这个：

<强> serializer.py

from rest_framework.pagination import PageNumberPagination

class LargeResultsSetPagination(PageNumberPagination):
    page_size = 10  #no of pages
    page_size_query_param = 'page_size'
    max_page_size = 10

<强> views.py

dataoforpost=models.objects.all()
paginator = LargeResultsSetPagination()
page = paginator.paginate_queryset(dataoforpost, request)
response = paginator.get_paginated_response(page)
return response

django rest框架：如何创建年度存档

3 个答案: