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Rails “validates_uniqueness_of” Case Sensitivity
... 3rd Edition:
...despite its name, validates_uniqueness_of doesn’t really guarantee that column values will be unique. All it can do is verify that no column has the same value as that in the record being validated at the time the validation is performed. It’s possible for two records to be ...
Is it possible to hide extension resources in the Chrome web inspector network tab?
...requests from extensions, as mentioned by a commenter on the issue I originally opened.
In the network tab filter box, enter the string -scheme:chrome-extension (as shown below):
This is case-sensitive, so make sure it's lowercase. Doing this will hide all resources which were requested by exten...
Moving default AVD configuration folder (.android)
After installation of Android SDK, there was created .android folder on the E:\ drive. As far as I know this is the default folder of Android Virtual Devices for configuration files.
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How to put an image in div with CSS?
I would like to have all my images in CSS (the only way I know how is to put them in as background images).
4 Answers
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new Date() works differently in Chrome and Firefox
...n first attempts to parse the format of the String according to the rules called out in Date Time String Format (15.9.1.15). If the String does not conform to that format the function may fall back to any implementation-specific heuristics or implementation-specific date formats.
To make the Date ...
How to convert a Django QuerySet to a list
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Why not just call list() on the Queryset?
answers_list = list(answers)
This will also evaluate the QuerySet/run the query. You can then remove/add from that list.
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RegEx to parse or validate Base64 data
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The simplest solution would be to strip out all whitespace (which is ignored as per the RFC) before validation.
– Ben Blank
Jan 24 '09 at 1:35
2
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How do I force detach Screen from another SSH session?
...creen session still thinks it's attached. Maybe it is. Perhaps I don't really know what that means.
4 Answers
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What is AssemblyInfo.cs used for?
...-exposed, you don't need this. It is randomly
generate. In any case, normally, you don't need to modify it.
Credits goes to : http://social.msdn.microsoft.com/Forums/en/csharpgeneral/thread/8955449f-71ac-448e-9ee6-5329fceecd3c
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Providing a default value for an Optional in Swift?
...he idiom for dealing with optionals in Swift seems excessively verbose, if all you want to do is provide a default value in the case where it's nil:
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