我尝试在django-rest-framework上创建API:
models.py
class ArticleCategory(SystemModel):
name = models.CharField(blank=False, max_length=255)
category_slug = models.SlugField(blank=True, null=False)
def save(self, *args, **kwargs):
class ArticleItem(SystemModel):
name = models.CharField(blank=False, max_length=255)
item_slug = models.SlugField(blank=True, null=False)
text = models.TextField(blank=True)
article_category = models.ForeignKey('article.ArticleCategory', blank=False, null=False, related_name='article_item_set')
serializers.py
class ArticleCategorySerializer(serializers.HyperlinkedModelSerializer):
article_items = serializers.HyperlinkedIdentityField('article_item_set', view_name='article:item')
class Meta:
model = ArticleCategory
fields = ('url', 'name', 'category_slug', 'article_items',)
class ArticleItemSerializer(serializers.HyperlinkedModelSerializer):
article_category = serializers.HyperlinkedIdentityField('article_category', view_name='article:category')
class Meta:
model = ArticleItem
fields = ('url', 'name', 'item_slug', 'text', 'article_category')
urls.py
#namespace='article'
urlpatterns = patterns('',
url(r'^(?P<category_slug>[\w-]+)/(?P<item_slug>[\w-]+)', ArticleItemDetail.as_view(), name='item'),
url(r'^(?P<category_slug>[\w-]+)', ArticleItemListByCategory.as_view(), name='category'),
url(r'^', ArticleItemList.as_view(), name='item-list')
)
和api.py
class ArticleItemDetail(generics.RetrieveUpdateDestroyAPIView):
model = ArticleItem
serializer_class = ArticleItemSerializer
lookup_field = 'article_slug'
class ArticleItemListByCategory(generics.ListAPIView):
model = ArticleItem
serializer_class = ArticleItemSerializer
def get_queryset(self):
queryset = super(ArticleItemListByCategory, self).get_queryset()
return queryset.filter(article_category__category_slug=self.kwargs.get('category_slug'))
当我尝试获取item-list(http://127.0.0.1:8000/article/
)时,我收到错误
/ article /
的例外情况无法使用视图名称解析超链接关系的URL &#34; articleitem细节&#34 ;.您可能未能包含相关模型 在您的API中,或者错误地配置了
lookup_field
属性 这个领域。
如何解决此问题?我想保存这个url-structure,同时为每个对象都有url-field:
文章项目
{
"name": "Article item 1",
"url": "http://127.0.0.1/article/article-category-1/article-item-1",
"item_slug": "article-item-1",
"text": "\u0432\u043e\u043b\u043e\u0432\u043b\u043e",
"article_category": {
"name": "Article category 1",
"url": "http://127.0.0.1/article/article-category-1",
}
},
文章类别
{
"name": "Article category 1",
"url": "http://127.0.0.1/article/article-category-1",
"category_slug": "article-category-1",
"text": "\u0432\u043e\u043b\u043e\u0432\u043b\u043e",
"article_items": [
{
"name": "Article item 1",
"url": "http://127.0.0.1/article/article-category-1/article-item-1",
},
{
"name": "Article item 2",
"url": "http://127.0.0.1/article/article-category-1/article-item-2",
},
]
},
答案 0 :(得分:1)
您的查找字段指向数据库中不存在的article_slug
。它应该是item_slug
。这似乎导致了错误。
答案 1 :(得分:0)
尝试将其更改为此
`url(r'^(?P<category_slug>[\w-]+)/(?P<item_slug>[\w-]+)', ArticleItemDetail.as_view(), name='articleitem-detail'),`
它解决了我的问题。