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How do you serialize a model instance in Django?
... assuming obj is your model instance
dict_obj = model_to_dict( obj )
You now just need one straight json.dumps call to serialize it to json:
import json
serialized = json.dumps(dict_obj)
That's it! :)
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XmlSerializer: remove unnecessary xsi and xsd namespaces
...private XmlSerializerNamespaces _namespaces;
}
That's all to this class. Now, some objected to having an XmlSerializerNamespaces object somewhere within their classes; but as you can see, I neatly tucked it away in the default constructor and exposed a public property to return the namespaces.
No...
Java Singleton and Synchronization
... case where you have two threads that call getInstance() at the same time. Now imagine T1 executes just past the instance == null check, and then T2 runs. At this point in time the instance is not created or set, so T2 will pass the check and create the instance. Now imagine that execution switches ...
Please explain some of Paul Graham's points on Lisp
...ints (3) and (4) on your list seem the most interesting and still relevant now.
To understand them, it is useful to have a clear picture of what happens with Lisp code -- in the form of a stream of characters typed in by the programmer -- on its way to being executed. Let's use a concrete example:
;...
Changing the Git remote 'push to' default
... tried git branch --set-upstream-to myfork and got an error: >error: unknown option `set-upstream-to' I'm running git 1.7.9
– alonisser
Sep 15 '13 at 21:17
...
Checking if an Android application is running in the background
... activity state is briefly locked down to do the switch) that we actually know for sure what the next thing will be.
And the implementation and global behavior here is not guaranteed to remain the same in the future.
I wish I had read this before I posted an answer on the SO, but hopefully it...
What are the recommendations for html tag?
..., and as I originally feared, that makes it more trouble than it's worth. Now I have to go off and rewrite all my uses of it! :p
Related links of testing for issues when using "fragments"/hashes:
http://www.w3.org/People/mimasa/test/base/
http://www.w3.org/People/mimasa/test/base/results
Edit...
Akka or Reactor [closed]
...which is what you imply by “distributed”). For “modular” I do not know enough about Reactor, in particular how you can look up active components and manage them.
If you start a real project now and need something which satisfies your first sentence, then I don’t think it would be controve...
How do you roll back (reset) a Git repository to a particular commit? [duplicate]
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@MariuszNowak after doing git reset --hard <commit-id>, ( 2 back ) when doing "git push -f origin master" I get "remote: error: denying non-fast-forward refs/heads/master (you should pull first)" it is my repo and I want to tak...
What's a simple way to get a text input popup dialog box on an iPhone
... as, say, a UITableViewCell, but it should definitly do the trick as it is now standard supported in the iOS API. You will not need a private API for this.
UIAlertView * alert = [[UIAlertView alloc] initWithTitle:@"Alert" message:@"This is an example alert!" delegate:self cancelButtonTitle:@"Hide" ...