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データベースとしてmongoengineを使用して基本的なdjango-rest-frameworkバックエンドを作成しようとしています。 POSTをサポートし、必要なフィールドで必要に応じて動作するエントリの基本リストを作成しました。AttributeError： "QuerySet"属性 'model'がありません
しかし、私はQuerySetが属性 'model'を持たないこのバグに遭遇します。私がウェブで見たことのうち、フィルタリングされたコレクションをオブジェクトに入れると、このようなバグが発生します。しかし私の場合、それは異なっています（私は信じています）。 /box/1エンドポイントにアクセスしているときにエラーが表示されます。
以下のようにソースコード：
models.py：
from __future__ import unicode_literals
import datetime
from mongoengine import Document, connect, EmbeddedDocument, fields, DynamicDocument
from django.db import models
# Create your models here.
from mongoengine import signals
connect('yourdb', alias='default')
class GPS(EmbeddedDocument):
lat = fields.FloatField(null=False, required=True)
lon = fields.FloatField(null=False, required=True)
class PPM(EmbeddedDocument):
time = fields.DateTimeField(default=datetime.datetime.now())
value = fields.IntField(null=False, required=True)
@classmethod
def pre_save(cls, sender, document, **kwargs):
document.time = datetime.datetime.now()
signals.pre_save.connect(PPM.pre_save, sender=PPM)
class BuyHistory(EmbeddedDocument):
time = fields.DateTimeField(default=datetime.datetime.now())
boxid = fields.StringField(max_length=128, null=False, required=True)
username = fields.StringField(max_length=128, null=False, required=True)
product = fields.StringField(max_length=128, null=False, required=True)
amount = fields.IntField()
@classmethod
def pre_save(cls, sender, document, **kwargs):
document.time = datetime.datetime.now()
signals.pre_save.connect(BuyHistory.pre_save, sender=BuyHistory)
class RecycleHistory(EmbeddedDocument):
time = fields.DateTimeField(default=datetime.datetime.now())
boxid = fields.StringField(max_length=128, null=False, required=True)
username = fields.StringField(max_length=128, null=False, required=True)
amount = fields.IntField()
@classmethod
def pre_save(cls, sender, document, **kwargs):
document.time = datetime.datetime.now()
signals.pre_save.connect(RecycleHistory.pre_save, sender=RecycleHistory)
class Box(Document):
boxid = fields.StringField(max_length=128, null=False, required=True)
gps = fields.EmbeddedDocumentField(GPS, required=True)
buy_history = fields.EmbeddedDocumentListField(BuyHistory, default='[]')
recycle_history = fields.EmbeddedDocumentListField(RecycleHistory, default='[]')
ppm_history = fields.EmbeddedDocumentListField(PPM, default='[]')
class User(Document):
username = fields.StringField(max_length=128, null=False, required=True)
rfid = fields.StringField(max_length=32, null=False, required=True)
buy_history = fields.EmbeddedDocumentListField(BuyHistory)
recycle_history = fields.EmbeddedDocumentListField(RecycleHistory)
serializers.py：
from rest_framework_mongoengine import serializers
from models import User, BuyHistory, Box, RecycleHistory, PPM
class UserSerializer(serializers.DocumentSerializer):
class Meta:
model = User
fields = ('username', 'rfid', 'buy_history', 'recycle_history')
class PPMSerializer(serializers.DocumentSerializer):
class Meta:
model = PPM
fields = ('time', 'value')
class BuyHistorySerializer(serializers.EmbeddedDocumentSerializer):
class Meta:
model = BuyHistory
fields = ('time', 'boxid', 'username', 'product', 'amount')
class RecycleHistorySerializer(serializers.EmbeddedDocumentSerializer):
class Meta:
model = RecycleHistory
fields = ('time', 'boxid', 'username', 'product', 'amount')
class BoxSerializer(serializers.DocumentSerializer):
class Meta:
model = Box
fields = ('boxid', 'gps', 'buy_history', 'recycle_history', 'ppm_history')
views.py：
from models import User, Box
from serializers import UserSerializer, BoxSerializer
from rest_framework import generics
# Create your views here.
class BoxList(generics.ListCreateAPIView):
queryset = Box.objects.all()
serializer_class = BoxSerializer
class UserList(generics.ListCreateAPIView):
queryset = User.objects.all()
serializer_class = UserSerializer
class BoxDetail(generics.RetrieveUpdateDestroyAPIView):
queryset = Box.objects.all()
serializer_class = BoxSerializer(partial=True)
class UserDetail(generics.RetrieveUpdateDestroyAPIView):
queryset = User.objects.all()
serializer_class = UserSerializer(partial=True)
urls.py ：
from django.conf.urls import url
from django.contrib import admin
from server_api import views
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^box/$', views.BoxList.as_view()),
url(r'^box/(?P<pk>[0-9]+)$', views.BoxDetail.as_view()),
url(r'^user/$', views.UserList.as_view()),
]
settings.py：
import os
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.10/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = '08v0)(rn8ae8%v9li=he7n9)50q5^wre8srx*m#0_idvcu=jew'
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
ALLOWED_HOSTS = []
# Application definition
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'rest_framework',
'server_api.apps.ServerApiConfig'
]
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
ROOT_URLCONF = 'pmi_pos_server_django.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
WSGI_APPLICATION = 'pmi_pos_server_django.wsgi.application'
# Database
# https://docs.djangoproject.com/en/1.10/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
}
}
# Password validation
# https://docs.djangoproject.com/en/1.10/ref/settings/#auth-password-validators
AUTH_PASSWORD_VALIDATORS = [
{
'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
},
]
# Internationalization
# https://docs.djangoproject.com/en/1.10/topics/i18n/
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_L10N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.10/howto/static-files/
STATIC_URL = '/static/'
バージョン： 
誰かがジャンゴについて非常に詳細なチュートリアルを提案することができればまた、私は本当に感謝、私はジャンゴ・休憩・フレームワークを読みましたクラシックチュートリアル、クイックスタート、APIリファレンスなどがありますが、情報は十分ではないと感じています。詳細なチュートリアルがあれば、それをお試しください。
EDIT 1：
TRACELOG：
Traceback (most recent call last):
File "/usr/local/lib/python2.7/site-packages/django/core/handlers/exception.py", line 39, in inner
response = get_response(request)
File "/usr/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 187, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/usr/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 185, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/usr/local/lib/python2.7/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view
return view_func(*args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/django/views/generic/base.py", line 68, in view
return self.dispatch(request, *args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/rest_framework/views.py", line 477, in dispatch
response = self.handle_exception(exc)
File "/usr/local/lib/python2.7/site-packages/rest_framework/views.py", line 437, in handle_exception
self.raise_uncaught_exception(exc)
File "/usr/local/lib/python2.7/site-packages/rest_framework/views.py", line 474, in dispatch
response = handler(request, *args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/rest_framework/generics.py", line 283, in get
return self.retrieve(request, *args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/rest_framework/mixins.py", line 56, in retrieve
instance = self.get_object()
File "/usr/local/lib/python2.7/site-packages/rest_framework/generics.py", line 97, in get_object
obj = get_object_or_404(queryset, **filter_kwargs)
File "/usr/local/lib/python2.7/site-packages/rest_framework/generics.py", line 20, in get_object_or_404
return _get_object_or_404(queryset, *filter_args, **filter_kwargs)
File "/usr/local/lib/python2.7/site-packages/django/shortcuts.py", line 92, in get_object_or_404
except queryset.model.DoesNotExist:
AttributeError: 'QuerySet' object has no attribute 'model'
トレースログを提供してください。 –