如果需要在查询集的返回值中添加相关的in列表,可以通过以下步骤实现: 首先,使用查询集的过滤方法对对象进行筛选,获取符合条件的查询集。例如:queryset = Model.objects.filter(condition) 然后,使用values_list()方法获取查询集中指定字段的值列表。例如:values_list('field', flat=True) 接着,将获取的值列表...
1、在使用Django Admin的时候,有时候需要根据需求来显示用户所看到的页面,这个时候则需要自定义list_filter,通过自定的搜索栏来搜索对应的数据。 2、在使用ForeignKey或者ManyToManyField字段的时候,在默认的list_display中是无法查询到对应的数据的,简而言之,需要在list_display中自定义一个字段来获取对应的数据。 model...
fromdjango_filters.fieldsimportLookup from.modelsimportProduct classListFilter(Filter): deffilter(self,qs,value): value_list=value.split(u',') returnsuper(ListFilter,self).filter(qs,Lookup(value_list,'in')) classProductFilterSet(django_filters.FilterSet): id=ListFilter(name='id') classMeta: ...
达到2000+就会报错：django.db.utils.Error: ('07002', '[07002] [Microsoft][ODBC Driver 13 for ...
return ((port, port) for port in open_ports if port) def queryset(self, request, queryset): if self.value(): return queryset.filter(open_ports__port=self.value()) class HostAdmin(admin.ModelAdmin): #后台展示字段 list_display = ['id', 'ip_address', 'status', 'project', 'is_mo...
如果使用此值设置filter django筛选器queryset的值。如果您设置了多个filter筛选查询集两次，这等于queryset...
cities = City.objects.filter(country_id=country_id).order_by('name') return render(request, 'hr/city_dropdown_list_options.html', {'cities': cities}) 用这样简单的基于函数的视图就可以非常好的实现。下面是我们的HTML模板: templates/hr/city_dropdown_list_options.html ...
filter_horizontal¶ By default, a ManyToManyField is displayed in the admin site with a . However, multiple-select boxes can be difficult to use when selecting many items. Adding a ManyToManyField to this list will instead use a nifty unobtrusive JavaScript “filter” interface that allows search...
Field names inlist_filtercan also span relations using the__lookup, for example: classPersonAdmin(admin.UserAdmin):list_filter=["company__name"] Using aSimpleListFilter¶ For custom filtering, you can define your own list filter by subclassingdjango.contrib.admin.SimpleListFilter. You need to...
Filter Reference❮ Previous Next ❯ Filter ReferenceA list of all filter keywords:KeywordDescription add Adds a specified value. addslashes Adds a slash before any quote characters, to escape strings. capfirst Returns the first letter in uppercase. center Centers the value in the middle of a...