我有一个自定义管理器，它从POST请求创建一个对象 . 问题是2个manytomany参数没有传递任何信息 .

这是方法（在自定义管理器中）

class ConditionManager(models.Manager):
use_in_migrations = True
use_for_related_fields=True

def create_condition(self, *args, **kwargs):
    print(args)
    for i in kwargs:
        print i, kwargs[i]
    condition_obj = conditions.models.Condition(name=kwargs['name'], contagious=kwargs['contagious'], treatable=kwargs['treatable'], treatment=kwargs['treatment'], severeity=kwargs['severeity'], symptoms=kwargs['symptoms'], speciality=kwargs['speciality'])

    condition_obj.save()
    return condition_obj

这是序列化器

class ConditionSerializer(serializers.ModelSerializer):
  symptoms = SymptomSerializer(read_only=True, many=True)

  def create(self, validated_data):
attrs = validated_data
request = self.context['request']
return Condition.new.create_condition(**attrs)

 class Meta:
model = Condition
fields = ('id', 'treatment', 'name', 'contagious', 'treatable', 'treatment', 'severeity', 'symptoms')

这是POST请求

POST request

这是日志

（）可治疗真名癫痫治疗1传染性严重7内部服务器错误：/ conditions / new / condition / Traceback（最近呼叫最后一次）：文件“/Library/Python/2.7/site-packages/django/core/handlers /exception.py“，第39行，在内部响应= get_response（请求）文件”/Library/Python/2.7/site-packages/django/core/handlers/base.py“，第187行，在_get_response response = self中 . process_exception_by_middleware（e，request）文件“/Library/Python/2.7/site-packages/django/core/handlers/base.py”，第185行，在_get_response response = wrapped_callback（request，* callback_args，** callback_kwargs）File“ /Library/Python/2.7/site-packages/django/views/decorators/csrf.py“，第58行，在wrapped_view中返回view_func（* args，** kwargs）文件”/Library/Python/2.7/site-packages/ django / views / generic / base.py“，第68行，在视图中返回self.dispatch（request，* args，** kwargs）文件”/Library/Python/2.7/site-packages/rest_framework/views.py“，第477行，在调度响应中= self.handle_except ion（exc）文件“/Library/Python/2.7/site-packages/rest_framework/views.py”，第437行，在handle_exception中self.raise_uncaught_exception（exc）文件“/Library/Python/2.7/site-packages/rest_framework/ views.py“，第474行，在dispatch响应中= handler（request，* args，** kwargs）文件”/Library/Python/2.7/site-packages/rest_framework/decorators.py“，第52行，在handler return func中（* args，** kwargs）在create_condition serializer.save（）文件“/Users/Python2.7/site-packages/rest_framework/serializers .py“，第214行，在save self.instance = self.create（validated_data）文件”/Users/prashantcraju/medicalrecords/conditions/serializers.py“，第21行，在create return Condition.new.create_condition（** attrs ）文件“/Users/prashantcraju/medicalrecords/conditions/managers.py”，第20行，在create_condition condition_obj = conditions.models.Condition（name = kwargs ['name']，contagious = kwargs ['contagious']，treatable = kwargs ['treatable']，t reatment = kwargs ['treatment']，严重性= kwargs ['严重性']，症状= kwargs ['症状']，特殊= kwargs ['特殊']）KeyError：'症状'[19 / Feb / 2017 20:51 ：11]“POST / conditions / new / condition / HTTP / 1.1”500 14989

正如您所看到的那样，2 manytomany字段甚至没有显示在日志中 .

python django django-custom-manager