在：
【已解决】Django中返回合并后的当前用户信息为JSON的字典对象
期间，参考之前的代码：
<code> current_user_function_group = FunctionGroup.objects.filter(members=curUser)
function_group_serializer = FunctionGroupSerializer(current_user_function_group, many=True)
function_group_serializer_data = function_group_serializer.data
logger.info("function_group_serializer_data=%s", function_group_serializer_data)
return Response(
{
'current_user': curUserDict,
# 'current_user_function_group': function_group_serializer_data,
'current_user_function_group_list': function_group_serializer_data,
'function_group': user_function_group_names,
'function_group_ids': user_function_group_ids,
'function_group_owner': user_function_group_owner,
'function_group_functions': user_function_group_functions,
},
status=status.HTTP_200_OK)
</code>去用：
<code>
curUser = request.user
logger.info("current_user: curUser=%s", curUser)
userSerializer = UserSerializer(curUser, many=False)
logger.info("userSerializer=%s", userSerializer)
curUserDict = userSerializer.data
logger.info("curUserDict=%s", curUserDict)
allFunctionGroupList = FunctionGroup.objects.all()
# function_group_names = list(allFunctionGroupList.values_list('name', flat=True))
logger.info("allFunctionGroupList=%s", allFunctionGroupList)
joinedFunctionGroupList = FunctionGroup.objects.filter(members=curUser)
logger.info("joinedFunctionGroupList=%s", joinedFunctionGroupList)
joinedFunctionGroupListSerializer = FunctionGroupSerializer(joinedFunctionGroupList, many=True)
logger.info("joinedFunctionGroupListSerializer=%s", joinedFunctionGroupListSerializer)
serializedJoinedFunctionGroupList = joinedFunctionGroupListSerializer.data
logger.info("serializedJoinedFunctionGroupList=%s", serializedJoinedFunctionGroupList)
curUserDict["joinedFunctionGroup"] = serializedJoinedFunctionGroupList
isScriptFunctionGroupOwner = False
ownedScriptFunctionGroup = None
for curJoinedFunctionGroup in serializedJoinedFunctionGroupList:
logger.info("curJoinedFunctionGroup=%s", curJoinedFunctionGroup)
if curJoinedFunctionGroup.function == FunctionGroup.SCRIPT:
if curJoinedFunctionGroup.owner.id == curUser.id:
isScriptFunctionGroupOwner = True
ownedScriptFunctionGroup = curJoinedFunctionGroup
break
</code>结果却出错了：
<code>ERROR|20180730 15:01:35|exception:handle_uncaught_exception:118|Internal Server Error: /api/v1/users/current_user/ Traceback (most recent call last): File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 35, in inner response = get_response(request) File "/usr/local/lib/python3.6/site-packages/django/utils/deprecation.py", line 95, in __call__ response = self.get_response(request) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 37, in inner response = response_for_exception(request, exc) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 87, in response_for_exception response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info()) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 122, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File "/usr/local/lib/python3.6/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response six.reraise(exc_type, exc_value, tb) File "/Users/crifan/Library/Python/3.6/lib/python/site-packages/six.py", line 693, in reraise raise value File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 35, in inner response = get_response(request) File "/usr/local/lib/python3.6/site-packages/django/utils/deprecation.py", line 95, in __call__ response = self.get_response(request) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 37, in inner response = response_for_exception(request, exc) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 87, in response_for_exception response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info()) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 122, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File "/usr/local/lib/python3.6/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response six.reraise(exc_type, exc_value, tb) File "/Users/crifan/Library/Python/3.6/lib/python/site-packages/six.py", line 693, in reraise raise value File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 35, in inner response = get_response(request) File "/usr/local/lib/python3.6/site-packages/django/utils/deprecation.py", line 95, in __call__ response = self.get_response(request) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 37, in inner response = response_for_exception(request, exc) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 87, in response_for_exception response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info()) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 122, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File "/usr/local/lib/python3.6/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response six.reraise(exc_type, exc_value, tb) File "/Users/crifan/Library/Python/3.6/lib/python/site-packages/six.py", line 693, in reraise raise value File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 35, in inner response = get_response(request) File "/usr/local/lib/python3.6/site-packages/django/utils/deprecation.py", line 95, in __call__ response = self.get_response(request) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 37, in inner response = response_for_exception(request, exc) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 87, in response_for_exception response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info()) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 122, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File "/usr/local/lib/python3.6/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response six.reraise(exc_type, exc_value, tb) File "/Users/crifan/Library/Python/3.6/lib/python/site-packages/six.py", line 693, in reraise raise value File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 35, in inner response = get_response(request) File "/usr/local/lib/python3.6/site-packages/django/utils/deprecation.py", line 95, in __call__ response = self.get_response(request) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 37, in inner response = response_for_exception(request, exc) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 87, in response_for_exception response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info()) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 122, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File "/usr/local/lib/python3.6/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response six.reraise(exc_type, exc_value, tb) File "/Users/crifan/Library/Python/3.6/lib/python/site-packages/six.py", line 693, in reraise raise value File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 35, in inner response = get_response(request) File "/usr/local/lib/python3.6/site-packages/django/utils/deprecation.py", line 95, in __call__ response = self.get_response(request) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 37, in inner response = response_for_exception(request, exc) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 87, in response_for_exception response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info()) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 122, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File "/usr/local/lib/python3.6/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response six.reraise(exc_type, exc_value, tb) File "/Users/crifan/Library/Python/3.6/lib/python/site-packages/six.py", line 693, in reraise raise value File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 35, in inner response = get_response(request) File "/usr/local/lib/python3.6/site-packages/django/utils/deprecation.py", line 95, in __call__ response = self.get_response(request) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 37, in inner response = response_for_exception(request, exc) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 87, in response_for_exception response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info()) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 122, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File "/usr/local/lib/python3.6/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response six.reraise(exc_type, exc_value, tb) File "/Users/crifan/Library/Python/3.6/lib/python/site-packages/six.py", line 693, in reraise raise value File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 35, in inner response = get_response(request) File "/usr/local/lib/python3.6/site-packages/django/utils/deprecation.py", line 95, in __call__ response = self.get_response(request) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 37, in inner response = response_for_exception(request, exc) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 87, in response_for_exception response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info()) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 122, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File "/usr/local/lib/python3.6/site-packages/django_extensions/management/technical_response.py", line 6, in null_technical_500_response six.reraise(exc_type, exc_value, tb) File "/Users/crifan/Library/Python/3.6/lib/python/site-packages/six.py", line 693, in reraise raise value File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 35, in inner response = get_response(request) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 128, in _get_response response = self.process_exception_by_middleware(e, request) File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 126, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File "/usr/local/lib/python3.6/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view return view_func(*args, **kwargs) File "/usr/local/lib/python3.6/site-packages/rest_framework/viewsets.py", line 103, in view return self.dispatch(request, *args, **kwargs) File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 483, in dispatch response = self.handle_exception(exc) File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 443, in handle_exception self.raise_uncaught_exception(exc) File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 480, in dispatch response = handler(request, *args, **kwargs) File "/Users/crifan/dev/dev_root/xx/xx/projects/xx/server/xx/apps/user/views.py", line 107, in current_user if curJoinedFunctionGroup.function == FunctionGroup.SCRIPT: AttributeError: 'collections.OrderedDict' object has no attribute 'function' </code>
很明显，此处的curJoinedFunctionGroup不是以为的dict。
所以报错，需要去搞清楚，如何才能把数据序列化，得到dict的json对象
而返回的数据是：
<code>[OrderedDict([('id', 5), ('owner', 'xx'), ('name', 'xx剧本组'), ('function', 'script_function_group'), ('description', 'xxx剧本组'), ('created_at', '2018-07-04 21:41:14'), ('updated_at', '2018-07-25 16:24:05')])]
</code>而不是以为的普通的dict
去看代码：
/apps/user/serializers.py
<code>class FunctionGroupSerializer(serializers.ModelSerializer):
owner = serializers.CharField(source='owner.username')
function = serializers.SerializerMethodField()
class Meta:
model = FunctionGroup
fields = ('id', 'owner', 'name', 'function', 'description',
'created_at', 'updated_at')
read_only_fields = ('id', 'created_at', 'updated_at')
def get_function(self, obj):
return obj.get_function_display()
</code>好像是自己实现的？
django serializer to dict
python – How can I convert serializer data into dict type in Django – Stack Overflow
python – How to serialize dict in Django? – Stack Overflow
Serializer fields for dictionaries and lists · Issue #560 · encode/django-rest-framework
就是我要找的，此处希望是dict，实际上是OrderedDict
Serializing Django objects | Django documentation | Django
Serializers – Django REST framework
<code>serializer = CommentSerializer(comment)
serializer.data
# {'email': '[email protected]', 'content': 'foo bar', 'created': '2016-01-27T15:17:10.375877'}
</code>好像是这么写的，应该没错才对
Can’t cache a ReturnDict. · Issue #2360 · encode/django-rest-framework
django serializer data OrderedDict not dict
Python – Unable to modify the serializer.data dictionary in Django Rest Framework – Stack Overflow
python 2.7 – Django rest serializer.data is an empty OrderedDict() – Stack Overflow
再去看看输出：
<code>INFO|20180730 15:01:35|views:current_user:98|joinedFunctionGroupListSerializer=FunctionGroupSerializer(<QuerySet [<FunctionGroup: xxx剧本组>]>, many=True): id = IntegerField(label='ID', read_only=True) owner = CharField(source='owner.username') name = CharField(max_length=128) function = SerializerMethodField() description = CharField(allow_blank=True, allow_null=True, max_length=128, required=False) created_at = DateTimeField(read_only=True) updated_at = DateTimeField(read_only=True) </code>
INFO|20180730 15:01:35|views:current_user:100|serializedJoinedFunctionGroupList=[OrderedDict([(‘id’, 5), (‘owner’, ‘xx’), (‘name’, ‘xxx剧本组’), (‘function’, ‘script_function_group’), (‘description’, ‘xxx剧本组’), (‘created_at’, ‘2018-07-04 21:41:14’), (‘updated_at’, ‘2018-07-25 16:24:05’)])]
INFO|20180730 15:01:35|views:current_user:106|curJoinedFunctionGroup=OrderedDict([(‘id’, 5), (‘owner’, ‘xx’), (‘name’, ‘xxx剧本组’), (‘function’, ‘script_function_group’), (‘description’, ‘xxx剧本组’), (‘created_at’, ‘2018-07-04 21:41:14’), (‘updated_at’, ‘2018-07-25 16:24:05’)])
或许是list中每一个，都可以再去调用data去获取dict？
然后代码：
<code> for curJoinedFunctionGroup in serializedJoinedFunctionGroupList:
logger.info("type(curJoinedFunctionGroup)=%s", type(curJoinedFunctionGroup))
logger.info("curJoinedFunctionGroup=%s", curJoinedFunctionGroup)
</code>结果是：
<code>INFO|20180730 15:27:11|views:current_user:100|serializedJoinedFunctionGroupList=[OrderedDict([('id', 5), ('owner', 'xx'), ('name', 'xxx剧本组'), ('function', 'script_function_group'), ('description', 'xxx剧本组'), ('created_at', '2018-07-04 21:41:14'), ('updated_at', '2018-07-25 16:24:05')])]
INFO|20180730 15:27:11|views:current_user:106|type(curJoinedFunctionGroup)=<class 'collections.OrderedDict'>
INFO|20180730 15:27:11|views:current_user:107|curJoinedFunctionGroup=OrderedDict([('id', 5), ('owner', 'xxx'), ('name', 'xxx剧本组'), ('function', 'script_function_group'), ('description', 'xxx本组'), ('created_at', '2018-07-04 21:41:14'), ('updated_at', '2018-07-25 16:24:05')])
</code>突然想到，好像是：
python中的dict，不是js中的dict，不能用：
someDict.someField
而应该是：
someDict[“someField”]
去试试，结果就好了。
【总结】
此处，其实：
<code> allFunctionGroupList = FunctionGroup.objects.all()
# function_group_names = list(allFunctionGroupList.values_list('name', flat=True))
logger.info("allFunctionGroupList=%s", allFunctionGroupList)
joinedFunctionGroupList = FunctionGroup.objects.filter(members=curUser)
logger.info("joinedFunctionGroupList=%s", joinedFunctionGroupList)
joinedFunctionGroupListSerializer = FunctionGroupSerializer(joinedFunctionGroupList, many=True)
logger.info("joinedFunctionGroupListSerializer=%s", joinedFunctionGroupListSerializer)
serializedJoinedFunctionGroupList = joinedFunctionGroupListSerializer.data
logger.info("serializedJoinedFunctionGroupList=%s", serializedJoinedFunctionGroupList)
curUserDict["joinedFunctionGroup"] = serializedJoinedFunctionGroupList
isScriptFunctionGroupOwner = False
ownedScriptFunctionGroup = None
for curJoinedFunctionGroup in serializedJoinedFunctionGroupList:
logger.info("type(curJoinedFunctionGroup)=%s", type(curJoinedFunctionGroup))
logger.info("type(curUser)=%s", type(curUser))
logger.info("curJoinedFunctionGroup=%s", curJoinedFunctionGroup)
</code>此处的curJoinedFunctionGroup，已经是对应的dict，不过（其实，并且）是OrderedDict
而Python中获取dict的域（field，字段）值的话，不是支持：
js中的
someDict.someField
只能写成：
someDict[“someField”]
所以，只能写成：
curJoinedFunctionGroup[“function”]
而不是之前的：
curJoinedFunctionGroup.function
同时，之所以：
<code> groupOwner = curJoinedFunctionGroup["owner"]
logger.info("type(groupOwner)=%s", type(groupOwner))
logger.info("groupOwner=%s", groupOwner)
if groupOwner == curUser.username:
</code>中的可以写成
curUser.username
是因为：
<code>type(curUser)=<class 'apps.user.models.User'> </code>
即curUser此时是个class类，而类去访问属性/字段，是可以用：
someClass.someField
的
所以此处：
Django中，model对象去serialize后：
<code>
class FunctionGroup(TimestampedModel):
TYPE_VALUE_ADMIN = "0"
TYPE_VALUE_SCRIPT = "1"
TYPE_NAME_ADMIN = "admin_function_group"
TYPE_NAME_SCRIPT = "script_function_group"
CHOICES = {
(TYPE_VALUE_ADMIN, TYPE_NAME_ADMIN),
(TYPE_VALUE_SCRIPT, TYPE_NAME_SCRIPT),
}
owner = models.ForeignKey(settings.AUTH_USER_MODEL,
on_delete=models.PROTECT,
related_name='user_function_group')
name = models.CharField(null=False, blank=False, max_length=128)
function = models.CharField(
null=False, blank=False,
# choices=FUNCTION_GROUP_CHOICES,
choices=CHOICES,
max_length=128,
# default=FUNCTION_GROUP_CHOICES_DEFAULT
default=TYPE_VALUE_SCRIPT
)
description = models.CharField(null=True, blank=True, max_length=128)
members = models.ManyToManyField(User)
class FunctionGroupSerializer(serializers.ModelSerializer):
owner = serializers.CharField(source='owner.username')
function = serializers.SerializerMethodField()
class Meta:
model = FunctionGroup
fields = ('id', 'owner', 'name', 'function', 'description',
'created_at', 'updated_at')
read_only_fields = ('id', 'created_at', 'updated_at')
def get_function(self, obj):
return obj.get_function_display()
</code>是可以通过：
<code>joinedFunctionGroupListSerializer = FunctionGroupSerializer(joinedFunctionGroupList, many=True) serializedJoinedFunctionGroupList = joinedFunctionGroupListSerializer.data for curJoinedFunctionGroup in serializedJoinedFunctionGroupList: </code>
获得对应的单个的OrderedDict的curJoinedFunctionGroup的
只不过不要和Python中的class，或js中的dict
以为可以用somePythonClass.someField或someJsDict.someField
写成了：
somePythonDict.someField
否则当然会报错了。
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