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Difference between Destroy and Delete
...ecord::Callbacks: api.rubyonrails.org/classes/ActiveRecord/Callbacks.html. One such callback is model#before_destroy which can be used to halt the final destroy() call under certain conditions.
– Todd
Mar 23 '16 at 14:39
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Django Cookies, how can I set them?
...ef set_cookie(response, key, value, days_expire = 7):
if days_expire is None:
max_age = 365 * 24 * 60 * 60 #one year
else:
max_age = days_expire * 24 * 60 * 60
expires = datetime.datetime.strftime(datetime.datetime.utcnow() + datetime.timedelta(seconds=max_age), "%a, %d-%b-%Y %H:%M:%...
How to return smart pointers (shared_ptr), by reference or by value?
...which opens up the risk of deleting something at the improper time. That alone should be enough reason to not return by reference. Interfaces should be robust.
The cost concern is nowadays moot thanks to return value optimization (RVO), so you won't incur a increment-increment-decrement sequence or...
“Insufficient Storage Available” even there is lot of free space in device memory
...ng Galaxy S II and Note 1; I have no idea about other models:
Open the phone app and switch to keypad.
Dial *#9900#
On the screen that appears, click on the button labelled "Delete dumpstate/logcat".
I've restored about one GB of system space this way.
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What's the difference between hard and soft floating point numbers?
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Hard floats use an on-chip floating point unit. Soft floats emulate one in software. The difference is speed. It's strange to see both used on the same target architecture, since the chip either has an FPU or doesn't. You can enable soft floating point in GCC with -msoft-float. You may want t...
Compression/Decompression string with C#
...Stream before inspecting the output stream (e.g., mso.ToArray()). This is done with the using() { } block above. Note that the GZipStream is the innermost block and the contents are accessed outside of it. The same goes for decompressing: Dispose() of the GZipStream before attempting to access the d...
@RequestBody and @ResponseBody annotations in Spring
Can someone explain the @RequestBody and @ResponseBody annotations in Spring 3? What are they for? Any examples would be great.
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How do I change bash history completion to complete what's already on the line?
... Ah, I clearly mistyped the first two examples there... the last one was correct, though. I'll fix that up.
– ephemient
Jun 23 '09 at 1:34
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Reading/writing an INI file
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@aloneguid I would argue that the large set of available features actually contributed to .NET config files ending up being strange behemoths with a lot of magic in them. They have become "code in the config file," and this lead...
When do I need to use AtomicBoolean in Java?
...alid real-world example if initialized is simply being used to ensure that one and only one thread will invoke the initialize() method. Obviously initialized being true doesn't mean that initialization has definitely completed in this case, so maybe a slightly different term would be better here. Ag...