python - django admin中内联模型的分页器

Question

我有这个简单的 django 模型，其中包含一个传感器和特定传感器的值。每个日射强度计的值数很高(> 30k)。是否可以按特定日期对 PyranometerValues 进行分页，或者将分页器应用于管理内联 View ？

class Pyranometer(models.Model):
     name = models.CharField(max_length=75)                                                                             

class PyranometerValues(models.Model):                                                                                 
    timestamp = models.DateTimeField()
    value = models.DecimalField(max_digits=10,decimal_places=6)                                                        
    sensor = models.ForeignKey('Pyranometer')      

Answer 1

如果有人需要，我发现 this comment 中的分页 TabularInline 子类的这种很好的实现(虽然被描述为“相当老套”)的 a django-suit问题。

对于 Django 1.6，它需要更改模板并继承此 PaginationInline 类:

from django.contrib import admin
from django.contrib.admin.views.main import ChangeList
from django.core.paginator import EmptyPage, InvalidPage, Paginator

class InlineChangeList(object):
    can_show_all = True
    multi_page = True
    get_query_string = ChangeList.__dict__['get_query_string']

    def __init__(self, request, page_num, paginator):
        self.show_all = 'all' in request.GET
        self.page_num = page_num
        self.paginator = paginator
        self.result_count = paginator.count
        self.params = dict(request.GET.items())


class PaginationInline(admin.TabularInline):
    template = 'admin/edit_inline/tabular_paginated.html'
    per_page = 20

    def get_formset(self, request, obj=None, **kwargs):
        formset_class = super(PaginationInline, self).get_formset(
            request, obj, **kwargs)
        class PaginationFormSet(formset_class):
            def __init__(self, *args, **kwargs):
                super(PaginationFormSet, self).__init__(*args, **kwargs)

                qs = self.queryset
                paginator = Paginator(qs, self.per_page)
                try:
                    page_num = int(request.GET.get('p', '0'))
                except ValueError:
                    page_num = 0

                try:
                    page = paginator.page(page_num + 1)
                except (EmptyPage, InvalidPage):
                    page = paginator.page(paginator.num_pages)

                self.cl = InlineChangeList(request, page_num, paginator)
                self.paginator = paginator

                if self.cl.show_all:
                    self._queryset = qs
                else:
                    self._queryset = page.object_list

        PaginationFormSet.per_page = self.per_page
        return PaginationFormSet