带有 django-autocomplete-light 的 Django_filters

Question

我正在使用 django-autocomplete-light 和 django_filters。我看了django-filter with django autocomplete-light，但我的自动完成功能不起作用。

Models.py：

class ProfessionalDevelopment(models.Model):
   Name = models.CharField("Professional Development", max_length=20,default = "None")
   ProfessionalExperience = models.ManyToManyField(Person, through='PersonToProfessionalDevelopment')

class PersonToProfessionalDevelopment(models.Model):
   PersonID = models.ForeignKey(Person,  on_delete=models.CASCADE)
   ProfID = models.ForeignKey(ProfessionalDevelopment,  on_delete=models.CASCADE)
   Desc = models.CharField("Professional Development Description", max_length=30, default="None")

Views.py：

class ProfessionalDevelopmentAutocomplete(autocomplete.Select2QuerySetView):
 def get_queryset(self):
    qs = ProfessionalDevelopment.objects.all()
    if self.q:
        qs = qs.filter(name__istartswith=self.q)
    return qs

urls.py

urlpatterns = [url(r'^search/ProfessionalDevelopment-autocomplete/$', ProfessionalDevelopmentAutocomplete.as_view(),
    name='ProfessionalDevelopment-autocomplete']

Filters.py：

ProfessionalDevelopment = django_filters.CharFilter(name='professionaldevelopment__Name', lookup_expr='icontains',
                                                    widget=autocomplete.ModelSelect2(url='RSR:ProfessionalDevelopment-autocomplete'))

我收到一条错误消息，提示“列表”对象没有“查询集”属性。然后我将代码更改为 autocomplete.Select2 而不是 autocomplete.ModelSelect2 （根据https://github.com/yourlabs/django-autocomplete-light/issues/763）。虽然没有报错，但我无法在文本输入框中输入。有人可以帮助我吗？谢谢

Answer 1

您想根据模型名称过滤模型ProfessionalDevelopment。 您需要按以下步骤进行修改：

1. 在型号ProfessionalDevelopment 上填写str 或Unicode，否则过滤器上显示的选项将为id。

   class ProfessionalDevelopment(models.Model):
      Name = models.CharField("Professional Development", 
      max_length=20,default = "None")
      ProfessionalExperience = models.ManyToManyField(Person, 
      through='PersonToProfessionalDevelopment')
   
      def __unicode__(self):
          return self.name
   

2. 更改ProfessionalDevelopment的过滤字段：

   ProfessionalDevelopment = django_filters.ModelChoiceFilter(
       queryset=ProfessionalDevelopment.objects.all(), 
       widget=autocomplete.ModelSelect2(url="yourcompleteurl")
   )
   

这些步骤应该可以解决您的问题。不要忘记在您的模板中添加{{ form.media }}。