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Automatic creation date for Django model form objects?

What's the best way to set a creation date for an object automatically, and also a field that will record when the object was last updated? ...
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Object-orientation in C

... describes it. Exception in C is a C89 implementation of the TRY-CATCH-FINALLY found in other OO languages. It comes with a testsuite and some examples. Both by Laurent Deniau, which is working a lot on OOP in C. share ...
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Android ADB device offline, can't issue commands

... Worked exactly in the order described. Final step is to allow it on the phone. – vlad Nov 30 '13 at 5:17 26 ...
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How can I extend typed Arrays in Swift?

... BTW What you’ve defined here is functionally equivalent to the existing filter function: let x = ["A","B","C","X”].filter { $0.compare("A") > 0 } – Palimondo Jun 13 '14 at 0:10 ...
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How do I test a camera in the iPhone simulator?

...n send it through the pipelined to be treated like a normal photo. Essentially providing the feel of a very fast camera. CGSize sz = UIDeviceOrientationIsPortrait([[UIDevice currentDevice] orientation]) ? CGSizeMake(2448, 3264) : CGSizeMake(3264, 2448); UIGraphicsBeginImageContextWithOptions(sz, Y...
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Change GitHub Account username

...'s user name on GitHub, but I can't find how to do it. Is this possible at all? To clarify, I'm not talking about the user.name parameter in a git repository, but the username of the actual GitHub account. ...
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How do I parse a URL into hostname and path in javascript?

... current browser location, the 1st two lines become parser = location; and all the following lines work. Tried it in Chrome and IE9 just now. – Lee Meador Apr 26 '13 at 17:20 9 ...
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Show compose SMS view in Android

... @djk thanks i want to Read all contacts and want own page for sending sms with auto complete but i am not able to read contacts any good tutorial ? – Guru Oct 1 '12 at 12:59 ...
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List of strings to one string

...n fact if you look at Reflector, you'll see that unsafe code was used to really optimize it. The other two also WORK, but I think the Join function was written for this purpose, and I would guess, the most efficient. I could be wrong though... As per @Nuri YILMAZ without .ToArray(), but this is .NE...
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Get first day of week in SQL Server

...e saying, how many weeks have passed since Monday, January 1, 1900? Let's call that [n]. Ok, now add [n] weeks to Monday, January 1, 1900. You should not be surprised that this ends up being a Monday. DATEADD has no idea that you want to add weeks but only until you get to a Sunday, it's just adding...