Django rest framework return model queryset based on user












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We are building middleware and have the following situation: we have different users, each has their own database (not managed by us), all have some sort of 'Order' table.



We built an API endpoint where users can create an Order, a buffer is linked to the Order and based on the user who created the Order we send it to the correct database. This basically means we have a 'middleware' model Order, and during processing the Order is parsed to match the structure of the user's database and create it in their database.
Now we want to retrieve the orders from their database and display them at our API endpoint. We have non-managed models for the users to retrieve the orders, one is called AppOrder. But since our endpoint uses the middleware Order model we cannot simply return AppOrder.objects.all() when user is X, since the serializer is built for Order not for AppOrder.



class OrderViewSet(viewsets.ModelViewSet):
queryset = Order.objects.all() # <-- Simply returns all middleware Order objects, not what we want
serializer_class = OrderSerializer


The response should be the same, e.g. it should not be different if another user with a different db makes the call.



How can I, based on the user, return the correct orders from their respective database and still be able to filter/order by?



Fetching them from AppOrder, creating middleware Order objects for them and then returning them is both time consuming and impossible.










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    0















    We are building middleware and have the following situation: we have different users, each has their own database (not managed by us), all have some sort of 'Order' table.



    We built an API endpoint where users can create an Order, a buffer is linked to the Order and based on the user who created the Order we send it to the correct database. This basically means we have a 'middleware' model Order, and during processing the Order is parsed to match the structure of the user's database and create it in their database.
    Now we want to retrieve the orders from their database and display them at our API endpoint. We have non-managed models for the users to retrieve the orders, one is called AppOrder. But since our endpoint uses the middleware Order model we cannot simply return AppOrder.objects.all() when user is X, since the serializer is built for Order not for AppOrder.



    class OrderViewSet(viewsets.ModelViewSet):
    queryset = Order.objects.all() # <-- Simply returns all middleware Order objects, not what we want
    serializer_class = OrderSerializer


    The response should be the same, e.g. it should not be different if another user with a different db makes the call.



    How can I, based on the user, return the correct orders from their respective database and still be able to filter/order by?



    Fetching them from AppOrder, creating middleware Order objects for them and then returning them is both time consuming and impossible.










    share|improve this question

























      0












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      0








      We are building middleware and have the following situation: we have different users, each has their own database (not managed by us), all have some sort of 'Order' table.



      We built an API endpoint where users can create an Order, a buffer is linked to the Order and based on the user who created the Order we send it to the correct database. This basically means we have a 'middleware' model Order, and during processing the Order is parsed to match the structure of the user's database and create it in their database.
      Now we want to retrieve the orders from their database and display them at our API endpoint. We have non-managed models for the users to retrieve the orders, one is called AppOrder. But since our endpoint uses the middleware Order model we cannot simply return AppOrder.objects.all() when user is X, since the serializer is built for Order not for AppOrder.



      class OrderViewSet(viewsets.ModelViewSet):
      queryset = Order.objects.all() # <-- Simply returns all middleware Order objects, not what we want
      serializer_class = OrderSerializer


      The response should be the same, e.g. it should not be different if another user with a different db makes the call.



      How can I, based on the user, return the correct orders from their respective database and still be able to filter/order by?



      Fetching them from AppOrder, creating middleware Order objects for them and then returning them is both time consuming and impossible.










      share|improve this question














      We are building middleware and have the following situation: we have different users, each has their own database (not managed by us), all have some sort of 'Order' table.



      We built an API endpoint where users can create an Order, a buffer is linked to the Order and based on the user who created the Order we send it to the correct database. This basically means we have a 'middleware' model Order, and during processing the Order is parsed to match the structure of the user's database and create it in their database.
      Now we want to retrieve the orders from their database and display them at our API endpoint. We have non-managed models for the users to retrieve the orders, one is called AppOrder. But since our endpoint uses the middleware Order model we cannot simply return AppOrder.objects.all() when user is X, since the serializer is built for Order not for AppOrder.



      class OrderViewSet(viewsets.ModelViewSet):
      queryset = Order.objects.all() # <-- Simply returns all middleware Order objects, not what we want
      serializer_class = OrderSerializer


      The response should be the same, e.g. it should not be different if another user with a different db makes the call.



      How can I, based on the user, return the correct orders from their respective database and still be able to filter/order by?



      Fetching them from AppOrder, creating middleware Order objects for them and then returning them is both time consuming and impossible.







      django django-rest-framework






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      asked Nov 14 '18 at 13:23









      God SerenaGod Serena

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