Django REST框架-按字段值的查询模型

我有一个建筑模型，我已经为它创建了序列化程序和ModelViewSet。现在，我可以使用

/api/Buildings/

获取所有建筑物，并使用

/api/Buildings/3

获取建筑物对象，其中3是建筑物Id

如何查询具有特定属性值的建筑对象？例如，如何获取名称为“hospital”的建筑对象？类似于

/api/buildings？name=hospital

的东西不起作用

视图.py

class APIBuildingsViewSet(viewsets.ModelViewSet):
    queryset = Building.objects.all()
    serializer_class = BuildingSerializer

class Building(models.Model):
    building_id = models.AutoField('ID', auto_created=True, primary_key=True)
    name        = models.CharField('Name', max_length=125, null=True, blank=False, unique=False)
    address     = models.CharField('Address', max_length=256, null=False, blank=False)
    user_id     = models.ForeignKey('accounts.User', on_delete=models.CASCADE, default=1)

    def __str__(self):
        return self.name

class BuildingSerializer(serializers.ModelSerializer):
    class Meta:
        model = Building
        fields = ('building_id', 'name', 'address', 'user_id')

from django_filters.rest_framework import DjangoFilterBackend

class APIBuildingsViewSet(viewsets.ModelViewSet):
    queryset = Building.objects.all()
    serializer_class = BuildingSerializer
    filter_backends = [DjangoFilterBackend]
    filterset_fields = ['name', 'address']

型号.py

class APIBuildingsViewSet(viewsets.ModelViewSet):
    queryset = Building.objects.all()
    serializer_class = BuildingSerializer

class Building(models.Model):
    building_id = models.AutoField('ID', auto_created=True, primary_key=True)
    name        = models.CharField('Name', max_length=125, null=True, blank=False, unique=False)
    address     = models.CharField('Address', max_length=256, null=False, blank=False)
    user_id     = models.ForeignKey('accounts.User', on_delete=models.CASCADE, default=1)

    def __str__(self):
        return self.name

class BuildingSerializer(serializers.ModelSerializer):
    class Meta:
        model = Building
        fields = ('building_id', 'name', 'address', 'user_id')

from django_filters.rest_framework import DjangoFilterBackend

class APIBuildingsViewSet(viewsets.ModelViewSet):
    queryset = Building.objects.all()
    serializer_class = BuildingSerializer
    filter_backends = [DjangoFilterBackend]
    filterset_fields = ['name', 'address']

序列化程序.py

class APIBuildingsViewSet(viewsets.ModelViewSet):
    queryset = Building.objects.all()
    serializer_class = BuildingSerializer

class Building(models.Model):
    building_id = models.AutoField('ID', auto_created=True, primary_key=True)
    name        = models.CharField('Name', max_length=125, null=True, blank=False, unique=False)
    address     = models.CharField('Address', max_length=256, null=False, blank=False)
    user_id     = models.ForeignKey('accounts.User', on_delete=models.CASCADE, default=1)

    def __str__(self):
        return self.name

class BuildingSerializer(serializers.ModelSerializer):
    class Meta:
        model = Building
        fields = ('building_id', 'name', 'address', 'user_id')

from django_filters.rest_framework import DjangoFilterBackend

class APIBuildingsViewSet(viewsets.ModelViewSet):
    queryset = Building.objects.all()
    serializer_class = BuildingSerializer
    filter_backends = [DjangoFilterBackend]
    filterset_fields = ['name', 'address']

url.py

router = DefaultRouter()
router.register(r'buildings', views.APIBuildingsViewSet, base_name='buildings')

urlpatterns = [
    url(r'^api/', include(router.urls)),
]

---

您需要在视图中使用

DjangoFilterBackend

，并指定可用于筛选的字段

首先，您必须使用

pip install django filter

安装它，并将

django_filters

添加到

settings.py/INSTALLED_APPS

，并按如下方式设置视图：

...
from django_filters.rest_framework import DjangoFilterBackend

class APIBuildingsViewSet(viewsets.ModelViewSet):
    queryset = Building.objects.all()
    serializer_class = BuildingSerializer
    filter_backends = (DjangoFilterBackend,)
    filter_fields = (building_id, name, address, user_id)

---

通过这些设置，您可以发送一篇文章，如

/api/buildings/？name=hospital

（注意问号前的斜线）

您需要在视图中使用

DjangoFilterBackend

，并指定可用于筛选的字段

首先，您必须使用

pip install django filter

安装它，并将

django_filters

添加到

settings.py/INSTALLED_APPS

，并按如下方式设置视图：

...
from django_filters.rest_framework import DjangoFilterBackend

class APIBuildingsViewSet(viewsets.ModelViewSet):
    queryset = Building.objects.all()
    serializer_class = BuildingSerializer
    filter_backends = (DjangoFilterBackend,)
    filter_fields = (building_id, name, address, user_id)

---

通过这些设置，您可以发送一篇文章，如

/api/buildings/？name=hospital

（注意问号前的斜杠）

只需在view.py文件中进行更改即可

视图.py

class APIBuildingsViewSet(viewsets.ModelViewSet):
    queryset = Building.objects.all()
    serializer_class = BuildingSerializer

class Building(models.Model):
    building_id = models.AutoField('ID', auto_created=True, primary_key=True)
    name        = models.CharField('Name', max_length=125, null=True, blank=False, unique=False)
    address     = models.CharField('Address', max_length=256, null=False, blank=False)
    user_id     = models.ForeignKey('accounts.User', on_delete=models.CASCADE, default=1)

    def __str__(self):
        return self.name

class BuildingSerializer(serializers.ModelSerializer):
    class Meta:
        model = Building
        fields = ('building_id', 'name', 'address', 'user_id')

from django_filters.rest_framework import DjangoFilterBackend

class APIBuildingsViewSet(viewsets.ModelViewSet):
    queryset = Building.objects.all()
    serializer_class = BuildingSerializer
    filter_backends = [DjangoFilterBackend]
    filterset_fields = ['name', 'address']

---

只需在view.py文件中进行更改即可

视图.py

class APIBuildingsViewSet(viewsets.ModelViewSet):
    queryset = Building.objects.all()
    serializer_class = BuildingSerializer

class Building(models.Model):
    building_id = models.AutoField('ID', auto_created=True, primary_key=True)
    name        = models.CharField('Name', max_length=125, null=True, blank=False, unique=False)
    address     = models.CharField('Address', max_length=256, null=False, blank=False)
    user_id     = models.ForeignKey('accounts.User', on_delete=models.CASCADE, default=1)

    def __str__(self):
        return self.name

class BuildingSerializer(serializers.ModelSerializer):
    class Meta:
        model = Building
        fields = ('building_id', 'name', 'address', 'user_id')

from django_filters.rest_framework import DjangoFilterBackend

class APIBuildingsViewSet(viewsets.ModelViewSet):
    queryset = Building.objects.all()
    serializer_class = BuildingSerializer
    filter_backends = [DjangoFilterBackend]
    filterset_fields = ['name', 'address']