努力让django_comments与Django REST框架一起工作

我在一个项目上第一次使用Django REST框架，并且我正在努力应对一个特定的部分。该项目是一个问题跟踪器类型的应用程序，它使用django_comments来允许对问题进行评论。我现在在它上面创建一个API以允许创建一个移动应用程序。努力让django_comments与Django REST框架一起工作

我创建了以下串行：

from django.contrib.auth.models import User 
from todolist.models import Project, Issue 
from rest_framework import serializers 
from django_comments.models import Comment 

class UserSerializer(serializers.HyperlinkedModelSerializer): 
    class Meta: 
     model = User 
     fields = ('id', 'email', 'first_name', 'last_name') 


class ProjectSerializer(serializers.HyperlinkedModelSerializer): 
    class Meta: 
     model = Project 
     fields = ('name', 'description', 'owner') 


class CommentSerializer(serializers.HyperlinkedModelSerializer): 
    class Meta: 
     model = Comment 


class IssueSerializer(serializers.HyperlinkedModelSerializer): 
    comments = CommentSerializer(many=True) 

    class Meta: 
     model = Issue

这是我的项目范围urls.py，在那里我定义路线：

from django.conf.urls import patterns, include, url 
from todolist.views import HomeTemplateView, UserViewSet, ProjectViewSet, IssueViewSet, CommentViewSet 
from rest_framework import routers 
from rest_framework.authtoken.views import obtain_auth_token 

# Uncomment the next two lines to enable the admin: 
from django.contrib import admin 
admin.autodiscover() 

router = routers.DefaultRouter() 
router.register(r'users', UserViewSet) 
router.register(r'projects', ProjectViewSet) 
router.register(r'issues', IssueViewSet) 
router.register(r'comments', CommentViewSet) 

urlpatterns = patterns('', 
    # Examples: 
    # url(r'^$', 'projectile.views.home', name='home'), 
    # url(r'^projectile/', include('projectile.foo.urls')), 

    # Uncomment the admin/doc line below to enable admin documentation: 
    # url(r'^admin/doc/', include('django.contrib.admindocs.urls')), 

    # Uncomment the next line to enable the admin: 
    url(r'^admin/', include(admin.site.urls)), 

    # Comments 
    (r'^comments/', include('django_comments.urls')), 

    # Login 
    url(r'^accounts/login/$', 'django.contrib.auth.views.login'), 

    # Logout 
    url(r'^accounts/logout/$', 'django.contrib.auth.views.logout_then_login', {'login_url': '/accounts/login/'}), 

    # To-do list 
    url(r'^projects/', include('todolist.urls')), 

    # Home page 
    url(r'^$', HomeTemplateView.as_view(
     template_name="todolist/home.html", 
     )), 

    # Router URLs 
    url(r'^api/', include(router.urls)), 

    # REST framework auth URLs 
    url(r'^api-auth/', include('rest_framework.urls', namespace='rest_framework')), 
    url(r'^api-token-auth/', obtain_auth_token), 

    # API docs 
    url(r'^docs/', include('rest_framework_swagger.urls')) 
)

我看到下面的错误，当我运行一个试图获得所有评论的测试：

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

此外，当我获取n问题，它不包括评论。

现在，这个错误在我看来是在提取评论时，无法将评论与其父项进行匹配。我有experienced similar problems when using Tastypie in the past，我不确定如何用DRF解决它。

来源

2015-02-06 Matthew Daly

你可以发布你的urls.py文件。 – levi 2015-02-06 15:47:15

@levi做了 – 2015-02-06 15:50:09

你有一个名为'contenttype'的序列化程序吗？ – levi 2015-02-06 15:52:44

在您的Comment序列化程序中，明确指定注释实例字段并排除contenttype字段。

class CommentSerializer(serializers.HyperlinkedModelSerializer): 
    class Meta: 
     model = Comment 
     fields = ('field_1','field_2','field_3') #here goes your comment fields and dont include contenttype field

的问题是，DRF将尝试运用超链接来表示所有关系，并为contenttype场你没有观点或串行器，你不需要它的。

来源

2015-02-06 16:03:12 levi

这个技巧。非常感谢！ – 2015-02-06 16:07:39

努力让django_comments与Django REST框架一起工作

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