如何让django-filters在嵌入式模型领域发挥作用？

Question

例如，models.py如下所示：

class Locations(models.Model):
    name = models.CharField(max_length=200, null=True)
    fendering_position = models.CharField(max_length=1000, null=True, blank=True)
    STS_position = models.CharField(max_length=1000, null=True, blank=True)
    STS_latitude = models.FloatField(null=True, blank=True)
    STS_longitude = models.FloatField(null=True, blank=True)

class EmergencyContacts(models.Model):
    Oil_Spill_Responders = models.CharField(max_length=1000, null=True, blank=True)
    Local_Emergency_Medical_Assistance = models.CharField(max_length=1000, null=True, blank=True)
    Police = models.CharField(max_length=1000, null=True, blank=True)

class Equipment_Details(models.Model):
    Primary_Fenders = models.CharField(max_length=1000, null=True, blank=True)
    Secondary_Fenders = models.CharField(max_length=1000, null=True, blank=True)
    Fender_Moorings = models.CharField(max_length=1000, null=True, blank=True)

class LocationsForm(forms.ModelForm):
    class Meta:
        model = Locations
        fields = [
            'name', 'fendering_position', 'STS_position', 'STS_latitude', 'STS_longitude', ]


class EmergencyContactsForm(forms.ModelForm):
    class Meta:
        model = EmergencyContacts
        fields = [
            'Oil_Spill_Responders', 'Local_Emergency_Medical_Assistance', 'Police']


class Equipment_DetailsForm(forms.ModelForm):
    class Meta:
        model = Equipment_Details
        fields = [
            'Primary_Fenders', 'Secondary_Fenders', 'Fender_Moorings']

class Entry(models.Model):

    locations = models.EmbeddedModelField(
        model_container=(Locations),
        model_form_class=LocationsForm
    )

    emergencycontacts = models.EmbeddedModelField(
        model_container=(EmergencyContacts),
        model_form_class=EmergencyContactsForm
    )

    equipment_details = models.EmbeddedModelField(
        model_container=(Equipment_Details),
        model_form_class=Equipment_DetailsForm
    )

现在所有内容都将存储在条目表中，所以如果我想使用django-filters进行搜索，我应该怎么做？我试着：

class EntryFilter(django_filters.FilterSet):
     name = CharFilter(field_name='name', lookup_expr='icontains') 

 class Meta:
        model = Entry.locations  
        fields = 'name' 

这不起作用，我也试着：

class Meta:
    model = Entry
    fields = '__all__'

而且这也不起作用，那么我应该在filters.py上写些什么才能使它能够搜索位置名称、Oil_Spill_Responders和Primary_Fenders。

Answer 1

尝试此代码一次

from .models import Locations

class EntryFilter(django_filters.FilterSet):
     name = CharFilter(field_name='name', lookup_expr='icontains') 

     class Meta:
          model = Locations
          fields = ["name"] 

注意:当您想要传递所有字段时使用

 class Meta:
          model = Locations
          fields = "__all__" 

注意：当您传递选定字段时，请以列表形式传递它们

 class Meta:
          model =  Locations
          fields = ["field_1", "field_2", ...]