django rest django.core.exceptions.ImproperlyConfigured: Could not resolve URL for hyperlinked relationship using view name

小粉优化大师發表於2024-05-20
DjangoRESTExceptionView

使用：HyperlinkedRelatedField 報錯資訊

django.core.exceptions.ImproperlyConfigured: Could not resolve URL for hyperlinked relationship using view name "fk_table:album_list". 
You may have failed to include the related model in your API, or incorrectly configured the `lookup_field` attribute on this field.

原因：

因為我配置顯示資料的URL導致的

# url
urlpatterns = [
    path('album/', include([
        path('list/', AlbumList.as_view(), name='album_list'),
    ])),
]

# serializers
class AlbumSerializer(serializers.ModelSerializer):
    tracks = serializers.HyperlinkedRelatedField(many=True, read_only=True, view_name='fk_table:album_list') # album_list配置有問題，沒有pk的識別
    class Meta:
        model = Album
        fields = ['album_name', 'artist', 'tracks']

解決方法

# url 
urlpatterns = [
    path('album/', include([
        path('list/', AlbumList.as_view(), name='album_list'),
        path('edit/<int:pk>/', AlbumList.as_view(), name='album_edit'),
    ])),
]

# serializers
class AlbumSerializer(serializers.ModelSerializer):
    tracks = serializers.HyperlinkedRelatedField(many=True, read_only=True, view_name='fk_table:album_edit')
    class Meta:
        model = Album
        fields = ['album_name', 'artist', 'tracks']

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