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Django REST Framework: adding additional field to ModelSerializer

...s? my question is: how to accept custom POST values which can be validated and processes in the post_save() handler? – Alp May 30 '14 at 10:34 ...
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Design Pattern for Undo Engine

... Most examples I've seen use a variant of the Command-Pattern for this. Every user-action that's undoable gets its own command instance with all the information to execute the action and roll it back. You can then maintain a list of all the commands that have been executed a...
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Can I load a .NET assembly at runtime and instantiate a type knowing only the name?

...t possible to instantiate an object at runtime if I only have the DLL name and the class name, without adding a reference to the assembly in the project? The class implements a interface, so once I instantiate the class, I will then cast it to the interface. ...
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Spring MVC @PathVariable getting truncated

...ng @Configuration spring classes instead of XML. – evandongen Oct 20 '11 at 13:46 3 This works, b...
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Spring 3 MVC accessing HttpRequest from controller

I would like to handle request and session attributes myself rather then leave it to spring @SessionAttributes , for login of cookies handling for example. ...
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@OneToMany List vs Set difference

... A list, if there is no index column specified, will just be handled as a bag by Hibernate (no specific ordering). One notable difference in the handling of Hibernate is that you can't fetch two different lists in a single query. For example, if you have a Person entity having a list ...
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How do you find all subclasses of a given class in Java?

How does one go about and try to find all subclasses of a given class (or all implementors of a given interface) in Java? As of now, I have a method to do this, but I find it quite inefficient (to say the least). The method is: ...
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How the single threaded non blocking IO model works in Node.js

...le threaded non blocking IO model works. After I read the article understanding-the-node-js-event-loop , I'm really confused about it. It gave an example for the model: ...
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How do you see recent SVN log entries?

Typing svn log spits out an incredibly long, useless list on a command line. I have no idea why that is the default. If I wanted to read (or even could read) 300 entries on the terminal, I wouldn't mind typing svn log --full or something similar. ...
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Python ValueError: too many values to unpack [duplicate]

... self.materials is a dict and by default you are iterating over just the keys (which are strings). Since self.materials has more than two keys*, they can't be unpacked into the tuple "k, m", hence the ValueError exception is raised. In Python 2.x, t...