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How to reuse a function or class in Django


How to merge two dictionaries in a single expression?How do I check if a list is empty?How do I check whether a file exists without exceptions?How to flush output of print function?How can I safely create a nested directory?Using global variables in a functionHow do I sort a dictionary by value?How to make a chain of function decorators?Does Django scale?How do I list all files of a directory?






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;








1















This is my class TimesheetListApiV2 there are lots of such kind of classes.



@valid_accesstoken_check
class TimesheetListApiV2(APIView):

def get(self, request):

try:
accesstoken=AccessToken.objects.get(
token=self.request.META.get('HTTP_AUTHORIZATION').replace('Bearer ', '')
)
except ObjectDoesNotExist:
return Response (

"status" : False,
"error" : "Wrong Access Token",
"error_message":"You have provided wrong access token.",

)


Now in all my classes this piece of code is there.



try:
accesstoken=AccessToken.objects.get(
token=self.request.META.get('HTTP_AUTHORIZATION').replace('Bearer ', '')
)
except ObjectDoesNotExist:
return Response (

"status" : False,
"error" : "Wrong Access Token",
"error_message":"You have provided wrong access token.",

)


I want to write a function or class where to reuse that code instead of writing it. But it should be workable even request should be pass. Even in future i am going to add more such code which should be reused.



I tried to make this decorators.py



from django.core.exceptions import ObjectDoesNotExist
from oauth2_provider.models import AccessToken

def valid_accesstoken_check(function):
def wrap(request, *args, **kwargs):
try:
accesstoken=AccessToken.objects.get(
token=self.request.META.get('HTTP_AUTHORIZATION').replace('Bearer ', '')
)
except ObjectDoesNotExist:
return Response (

"status" : False,
"error" : "Wrong Access Token",
"error_message":"You have provided wrong access token.",

)
wrap.__doc__ = function.__doc__
wrap.__name__ = function.__name__
return wrap


But it is giving error



path('timesheet/list', views.TimesheetListApiV2.as_view(), name='api_v2_timesheet_list'),
AttributeError: 'function' object has no attribute 'as_view'









share|improve this question
























  • Looks like you need a decorator?

    – E.Serra
    Mar 26 at 7:36











  • How can i create a decorator.

    – Huzaif Sayyed
    Mar 26 at 7:37











  • @E.Serra i tried to make decorator but it is giving error

    – Huzaif Sayyed
    Mar 26 at 7:50











  • You can create a Mixin for that

    – ruddra
    Mar 26 at 8:19











  • @ruddra i tried to create mixin also but it is not working. In mixin i have put get method. How can i create mixin for that because mixin and decorator is new topic for me

    – Huzaif Sayyed
    Mar 26 at 8:22


















1















This is my class TimesheetListApiV2 there are lots of such kind of classes.



@valid_accesstoken_check
class TimesheetListApiV2(APIView):

def get(self, request):

try:
accesstoken=AccessToken.objects.get(
token=self.request.META.get('HTTP_AUTHORIZATION').replace('Bearer ', '')
)
except ObjectDoesNotExist:
return Response (

"status" : False,
"error" : "Wrong Access Token",
"error_message":"You have provided wrong access token.",

)


Now in all my classes this piece of code is there.



try:
accesstoken=AccessToken.objects.get(
token=self.request.META.get('HTTP_AUTHORIZATION').replace('Bearer ', '')
)
except ObjectDoesNotExist:
return Response (

"status" : False,
"error" : "Wrong Access Token",
"error_message":"You have provided wrong access token.",

)


I want to write a function or class where to reuse that code instead of writing it. But it should be workable even request should be pass. Even in future i am going to add more such code which should be reused.



I tried to make this decorators.py



from django.core.exceptions import ObjectDoesNotExist
from oauth2_provider.models import AccessToken

def valid_accesstoken_check(function):
def wrap(request, *args, **kwargs):
try:
accesstoken=AccessToken.objects.get(
token=self.request.META.get('HTTP_AUTHORIZATION').replace('Bearer ', '')
)
except ObjectDoesNotExist:
return Response (

"status" : False,
"error" : "Wrong Access Token",
"error_message":"You have provided wrong access token.",

)
wrap.__doc__ = function.__doc__
wrap.__name__ = function.__name__
return wrap


But it is giving error



path('timesheet/list', views.TimesheetListApiV2.as_view(), name='api_v2_timesheet_list'),
AttributeError: 'function' object has no attribute 'as_view'









share|improve this question
























  • Looks like you need a decorator?

    – E.Serra
    Mar 26 at 7:36











  • How can i create a decorator.

    – Huzaif Sayyed
    Mar 26 at 7:37











  • @E.Serra i tried to make decorator but it is giving error

    – Huzaif Sayyed
    Mar 26 at 7:50











  • You can create a Mixin for that

    – ruddra
    Mar 26 at 8:19











  • @ruddra i tried to create mixin also but it is not working. In mixin i have put get method. How can i create mixin for that because mixin and decorator is new topic for me

    – Huzaif Sayyed
    Mar 26 at 8:22














1












1








1








This is my class TimesheetListApiV2 there are lots of such kind of classes.



@valid_accesstoken_check
class TimesheetListApiV2(APIView):

def get(self, request):

try:
accesstoken=AccessToken.objects.get(
token=self.request.META.get('HTTP_AUTHORIZATION').replace('Bearer ', '')
)
except ObjectDoesNotExist:
return Response (

"status" : False,
"error" : "Wrong Access Token",
"error_message":"You have provided wrong access token.",

)


Now in all my classes this piece of code is there.



try:
accesstoken=AccessToken.objects.get(
token=self.request.META.get('HTTP_AUTHORIZATION').replace('Bearer ', '')
)
except ObjectDoesNotExist:
return Response (

"status" : False,
"error" : "Wrong Access Token",
"error_message":"You have provided wrong access token.",

)


I want to write a function or class where to reuse that code instead of writing it. But it should be workable even request should be pass. Even in future i am going to add more such code which should be reused.



I tried to make this decorators.py



from django.core.exceptions import ObjectDoesNotExist
from oauth2_provider.models import AccessToken

def valid_accesstoken_check(function):
def wrap(request, *args, **kwargs):
try:
accesstoken=AccessToken.objects.get(
token=self.request.META.get('HTTP_AUTHORIZATION').replace('Bearer ', '')
)
except ObjectDoesNotExist:
return Response (

"status" : False,
"error" : "Wrong Access Token",
"error_message":"You have provided wrong access token.",

)
wrap.__doc__ = function.__doc__
wrap.__name__ = function.__name__
return wrap


But it is giving error



path('timesheet/list', views.TimesheetListApiV2.as_view(), name='api_v2_timesheet_list'),
AttributeError: 'function' object has no attribute 'as_view'









share|improve this question
















This is my class TimesheetListApiV2 there are lots of such kind of classes.



@valid_accesstoken_check
class TimesheetListApiV2(APIView):

def get(self, request):

try:
accesstoken=AccessToken.objects.get(
token=self.request.META.get('HTTP_AUTHORIZATION').replace('Bearer ', '')
)
except ObjectDoesNotExist:
return Response (

"status" : False,
"error" : "Wrong Access Token",
"error_message":"You have provided wrong access token.",

)


Now in all my classes this piece of code is there.



try:
accesstoken=AccessToken.objects.get(
token=self.request.META.get('HTTP_AUTHORIZATION').replace('Bearer ', '')
)
except ObjectDoesNotExist:
return Response (

"status" : False,
"error" : "Wrong Access Token",
"error_message":"You have provided wrong access token.",

)


I want to write a function or class where to reuse that code instead of writing it. But it should be workable even request should be pass. Even in future i am going to add more such code which should be reused.



I tried to make this decorators.py



from django.core.exceptions import ObjectDoesNotExist
from oauth2_provider.models import AccessToken

def valid_accesstoken_check(function):
def wrap(request, *args, **kwargs):
try:
accesstoken=AccessToken.objects.get(
token=self.request.META.get('HTTP_AUTHORIZATION').replace('Bearer ', '')
)
except ObjectDoesNotExist:
return Response (

"status" : False,
"error" : "Wrong Access Token",
"error_message":"You have provided wrong access token.",

)
wrap.__doc__ = function.__doc__
wrap.__name__ = function.__name__
return wrap


But it is giving error



path('timesheet/list', views.TimesheetListApiV2.as_view(), name='api_v2_timesheet_list'),
AttributeError: 'function' object has no attribute 'as_view'






python django python-3.x django-views






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Mar 26 at 7:49







Huzaif Sayyed

















asked Mar 26 at 7:35









Huzaif SayyedHuzaif Sayyed

5421 silver badge20 bronze badges




5421 silver badge20 bronze badges












  • Looks like you need a decorator?

    – E.Serra
    Mar 26 at 7:36











  • How can i create a decorator.

    – Huzaif Sayyed
    Mar 26 at 7:37











  • @E.Serra i tried to make decorator but it is giving error

    – Huzaif Sayyed
    Mar 26 at 7:50











  • You can create a Mixin for that

    – ruddra
    Mar 26 at 8:19











  • @ruddra i tried to create mixin also but it is not working. In mixin i have put get method. How can i create mixin for that because mixin and decorator is new topic for me

    – Huzaif Sayyed
    Mar 26 at 8:22


















  • Looks like you need a decorator?

    – E.Serra
    Mar 26 at 7:36











  • How can i create a decorator.

    – Huzaif Sayyed
    Mar 26 at 7:37











  • @E.Serra i tried to make decorator but it is giving error

    – Huzaif Sayyed
    Mar 26 at 7:50











  • You can create a Mixin for that

    – ruddra
    Mar 26 at 8:19











  • @ruddra i tried to create mixin also but it is not working. In mixin i have put get method. How can i create mixin for that because mixin and decorator is new topic for me

    – Huzaif Sayyed
    Mar 26 at 8:22

















Looks like you need a decorator?

– E.Serra
Mar 26 at 7:36





Looks like you need a decorator?

– E.Serra
Mar 26 at 7:36













How can i create a decorator.

– Huzaif Sayyed
Mar 26 at 7:37





How can i create a decorator.

– Huzaif Sayyed
Mar 26 at 7:37













@E.Serra i tried to make decorator but it is giving error

– Huzaif Sayyed
Mar 26 at 7:50





@E.Serra i tried to make decorator but it is giving error

– Huzaif Sayyed
Mar 26 at 7:50













You can create a Mixin for that

– ruddra
Mar 26 at 8:19





You can create a Mixin for that

– ruddra
Mar 26 at 8:19













@ruddra i tried to create mixin also but it is not working. In mixin i have put get method. How can i create mixin for that because mixin and decorator is new topic for me

– Huzaif Sayyed
Mar 26 at 8:22






@ruddra i tried to create mixin also but it is not working. In mixin i have put get method. How can i create mixin for that because mixin and decorator is new topic for me

– Huzaif Sayyed
Mar 26 at 8:22













1 Answer
1






active

oldest

votes


















0














Your decorator should apply to the get method, not the class itself:



class TimesheetListApiV2(APIView):
@valid_accesstoken_check
def get(self, request):
...





share|improve this answer






















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    1 Answer
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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    0














    Your decorator should apply to the get method, not the class itself:



    class TimesheetListApiV2(APIView):
    @valid_accesstoken_check
    def get(self, request):
    ...





    share|improve this answer



























      0














      Your decorator should apply to the get method, not the class itself:



      class TimesheetListApiV2(APIView):
      @valid_accesstoken_check
      def get(self, request):
      ...





      share|improve this answer

























        0












        0








        0







        Your decorator should apply to the get method, not the class itself:



        class TimesheetListApiV2(APIView):
        @valid_accesstoken_check
        def get(self, request):
        ...





        share|improve this answer













        Your decorator should apply to the get method, not the class itself:



        class TimesheetListApiV2(APIView):
        @valid_accesstoken_check
        def get(self, request):
        ...






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Mar 26 at 10:32









        albaralbar

        2,0841 gold badge9 silver badges19 bronze badges




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