如何在Django中实现分页

Question

我想在自定义json响应函数中实现分页。但我不知道我该如何实现这一点。这是函数的代码。任何意见都会有很大的帮助。谢谢你。

def json_response(data = {}, message = 'successful!', status = 'success', code = 200):

data_set = {}
status = 'success' if code == 200 else 'error' 
if status == 'success':
data_set['code'] = code
data_set['status'] = status
data_set['message'] = message
# data_set['data'] = data.data
try:
data_set['data'] = data.data
except TypeError:
data_set['data'] = json.dumps(data)
except AttributeError:
data_set['data'] = data

else:

data_set['code'] = code 
data_set['status'] = status
data_set['message'] = message
return JsonResponse(data_set, safe=False, status=code)

Answer 1

如果你使用的是Django Rest框架，请检查框架提供的分页

https://www.django-rest-framework.org/api-guide/pagination/

的例子:

# pagination.py
from rest_framework.pagination import PageNumberPagination
class CustomNumberPagination(PageNumberPagination):
page_size = 10 # Put the number of items you desire
# views.py
from somewhere.pagination import CustomNumberPagination
from somewhere.model import SomeModel
from somewhere.serializer import SomeSerializer
from rest_framework.generics import ListAPIView
class SomeView(generics.ListAPIView):
queryset = SomeModel.objects.all()
serializer_class = SomeSerializer
pagination_class = CustomNumberPagination

注:也可以像下面

那样进行全局配置

# settings.py
REST_FRAMEWORK = {
'DEFAULT_PAGINATION_CLASS': 'rest_framework.pagination.PageNumberPagination',
'PAGE_SIZE': 10, # Put the number of items you desire 
}