我有以下模型,我想将其序列化以通过 REST 公开:
class RehabilitationSession(models.Model):
patient = models.ForeignKey('userprofiles.PatientProfile', null=True, blank=True,verbose_name='Paciente', related_name='patientprofile')
slug = models.SlugField(max_length=100, blank=True)
medical = models.ForeignKey('userprofiles.MedicalProfile', null=True, blank=True,
verbose_name='Médico tratante')
therapist = models.ForeignKey('userprofiles.TherapistProfile', null=True, blank=True, verbose_name='Terapeuta')
date_session_begin = models.DateTimeField(default=timezone.now(), verbose_name = 'Fecha de inicio')
upper_extremity = MultiSelectField(
max_length=255,
choices=EXTREMITY_CHOICES,
blank=False,
verbose_name='Extremidad Superior'
)
affected_segment = models.ManyToManyField(AffectedSegment,verbose_name='Segmento afectado')
movement = ChainedManyToManyField(
Movement, #Modelo encadenado
chained_field = 'affected_segment',
chained_model_field = 'corporal_segment_associated',
verbose_name='Movimiento'
)
metrics = models.ManyToManyField(Metric, blank=True, verbose_name='Métrica')
date_session_end = models.DateTimeField(default=timezone.now(), verbose_name = 'Fecha de finalización')
period = models.CharField(max_length=25,blank=True, verbose_name='Tiempo de duración de la sesión')
class Meta:
verbose_name = 'Sesiones de Rehabilitación'
def __str__(self):
return "%s" % self.patient
要序列化我正在阅读的外键字段本文档 http://www.django-rest-framework.org/api-guide/relations/#hyperlinkedidentityfield
我的serializers.py是这样的:
from .models import RehabilitationSession
from rest_framework import serializers
class RehabilitationSessionSerializer(serializers.HyperlinkedModelSerializer):
patient = serializers.HyperlinkedIdentityField(view_name='patientprofile',)
class Meta:
model = RehabilitationSession
fields = ('url','id','patient',
'date_session_begin','status','upper_extremity',
'date_session_end', 'period','games','game_levels',
'iterations','observations',)
我在用超链接身份字段 http://www.django-rest-framework.org/api-guide/relations/#hyperlinkedidentityfield,由于我的模型是序列化的HyperlinkedModelSerializer
但是,我不清楚或者我仍然忽略当一个字段是时我应该如何序列化ForeignKey
and ManyToManyField
My urls.py
我在其中包含用于设置 api url 的路由的主文件是:
from django.conf.urls import url, include #patterns
from django.contrib import admin
from .views import home, home_files
# REST Framework packages
from rest_framework import routers
from userprofiles.views import UserViewSet, GroupViewSet, PatientProfileViewSet
from medical_encounter_information.views import RehabilitationSessionViewSet
router = routers.DefaultRouter()
router.register(r'users', UserViewSet)
router.register(r'groups', GroupViewSet)
router.register(r'rehabilitation-session', RehabilitationSessionViewSet)
router.register(r'patientprofile', PatientProfileViewSet)
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^chaining/', include('smart_selects.urls')),
url(r'^$', home, name='home'),
url(r'^', include('userprofiles.urls')),
#Call the userprofiles/urls.py
url(r'^', include('medical_encounter_information.urls' )),
#Call the medical_encounter_information/urls.py
# which is a regular expression that takes the desired urls and passes as an argument
# the filename, i.e. robots.txt or humans.txt.
url(r'^(?P<filename>(robots.txt)|(humans.txt))$',
home_files, name='home-files'),
#REST Frameworks url's
# Wire up our API using automatic URL routing.
# Additionally, we include login URLs for the browsable API.
url(r'^api/', include(router.urls)),
url(r'^api-auth/', include('rest_framework.urls', namespace='rest_framework')),
]
当我尝试访问 api rest 的 url 时,我在 cli 中收到以下消息:
File "/home/bgarcial/.virtualenvs/neurorehabilitation_projects_dev/lib/python3.4/site-packages/rest_framework/relations.py", line 355, in to_representation
raise ImproperlyConfigured(msg % self.view_name)
django.core.exceptions.ImproperlyConfigured: Could not resolve URL for hyperlinked relationship using view name "patientprofile". You may have failed to include the related model in your API, or incorrectly configured the `lookup_field` attribute on this field.
[08/Mar/2016 16:05:45] "GET /api/rehabilitation-session/ HTTP/1.1" 500 165647
在我的浏览器中我得到这个:
如何序列化发生在我身上的相同情况的ForeignKey和ManyToManyField?
此致