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Django rest framework, use different serializers in the same ModelViewSet

...at there is also a get_serializer method which returns an instance of the correct Serializer class DualSerializerViewSet(viewsets.ModelViewSet): def get_serializer_class(self): if self.action == 'list': return serializers.ListaGruppi if self.action == 'retrieve': ...
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What is the difference between Class and Klass in ruby?

... class is a keyword used to define a new class. Since it's a reserved keyword, you're not able to use it as a variable name. You can't use any of Ruby's keywords as variable names, so you won't be able to have variables named def or module o...
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What's the difference between a catalog and a schema in a relational database?

I used to think schema were the "upper wrapper" object before the database itself. I mean DB.schema.<what_ever_object_name_under_schema> . ...
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Best way to define error codes/strings in Java?

... service in Java, and I am trying to figure out the best way to define error codes and their associated error strings . I need to have a numerical error code and an error string grouped together. Both the error code and error string will be sent to the client accessing the web service. For example,...
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What is the difference between pip and conda?

I know pip is a package manager for python packages. However, I saw the installation on IPython's website use conda to install IPython. ...
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Abstract class in Java

...g subclass that can be instantiated. An abstract class does a few things for the inheriting subclass: Define methods which can be used by the inheriting subclass. Define abstract methods which the inheriting subclass must implement. Provide a common interface which allows the subclass to be inter...
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JUnit confusion: use 'extends TestCase' or '@Test'?

I've found the proper use (or at least the documentation) of JUnit very confusing. This question serves both as a future reference and as a real question. ...
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How to see top processes sorted by actual memory usage?

I have a server with 12G of memory. A fragment of top is shown below: 12 Answers 12 ...
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WCF vs ASP.NET Web API [closed]

...WCF Web API project (although some of the concepts have changed). WCF was originally created to enable SOAP-based services. For simpler RESTful or RPCish services (think clients like jQuery) ASP.NET Web API should be good choice. ...
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Understanding Fragment's setRetainInstance(boolean)

...o answer your questions: Does the fragment also retain its view state, or will this be recreated on configuration change - what exactly is "retained"? Yes, the Fragment's state will be retained across the configuration change. Specifically, "retained" means that the fragment will not be destro...