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How to reuse a function or class in Django

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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'

python django python-3.x django-views

share|improve this question

edited Mar 26 at 7:49

Huzaif Sayyed

asked Mar 26 at 7:35

Huzaif SayyedHuzaif Sayyed

54211 silver badge2020 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
  
  

  
  
  
  

 | 
show 1 more comment

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'

python django python-3.x django-views

share|improve this question

edited Mar 26 at 7:49

Huzaif Sayyed

asked Mar 26 at 7:35

Huzaif SayyedHuzaif Sayyed

54211 silver badge2020 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
  
  

  
  
  
  

 | 
show 1 more comment

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

edited Mar 26 at 7:49

Huzaif Sayyed

asked Mar 26 at 7:35

Huzaif SayyedHuzaif Sayyed

54211 silver badge2020 bronze badges

@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.",
 
 )

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.",
 
 )

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

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

share|improve this question

edited Mar 26 at 7:49

Huzaif Sayyed

asked Mar 26 at 7:35

Huzaif SayyedHuzaif Sayyed

54211 silver badge2020 bronze badges

share|improve this question

edited Mar 26 at 7:49

Huzaif Sayyed

asked Mar 26 at 7:35

Huzaif SayyedHuzaif Sayyed

54211 silver badge2020 bronze badges

asked Mar 26 at 7:35

Huzaif SayyedHuzaif Sayyed

54211 silver badge2020 bronze badges

asked Mar 26 at 7:35

Huzaif SayyedHuzaif Sayyed

54211 silver badge2020 bronze badges

1 Answer
1

active

oldest

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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

answered Mar 26 at 10:32

albaralbar

2,08411 gold badge99 silver badges1919 bronze badges

add a comment | 

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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

answered Mar 26 at 10:32

albaralbar

2,08411 gold badge99 silver badges1919 bronze badges

add a comment | 

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

answered Mar 26 at 10:32

albaralbar

2,08411 gold badge99 silver badges1919 bronze badges

add a comment | 

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

answered Mar 26 at 10:32

albaralbar

2,08411 gold badge99 silver badges1919 bronze badges

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

share|improve this answer

answered Mar 26 at 10:32

albaralbar

2,08411 gold badge99 silver badges1919 bronze badges

answered Mar 26 at 10:32

albaralbar

2,08411 gold badge99 silver badges1919 bronze badges

answered Mar 26 at 10:32

albaralbar

2,08411 gold badge99 silver badges1919 bronze badges