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Unique BooleanField value in Django?
... I tried editing to remove the need for try/except and to make the process more efficient but it was rejected.. Instead of get()ing the Character object and then save()ing it again, you just need to filter and update, which produces just one SQL query and helps keep the DB consistent: if self.is_the...
Casting vs using the 'as' keyword in the CLR
... right solution. That throws an exception immediately, which means that no more work is done under incorrect assumptions, and the exception correctly shows the type of bug.
// This will throw an exception if randomObject is non-null and
// refers to an object of an incompatible type. The cast is
//...
Batch file to delete files older than N days
...;number of days> -c "cmd /c del @path"
See forfiles documentation for more details.
For more goodies, refer to An A-Z Index of the Windows XP command line.
If you don't have forfiles installed on your machine, copy it from any Windows Server 2003 to your Windows XP machine at %WinDir%\sys...
Quick unix command to display specific lines in the middle of a file?
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Or more specifically 10 lines before: grep -B 10 ... Or 10 lines after: grep -A 10 ...
– Boy Baukema
May 21 '12 at 11:14
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How can I limit possible inputs in a HTML5 “number” element?
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How do I see the commit differences between branches in git?
I'm on branch-X and have added a couple more commits on top of it. I want to see all the differences between MASTER and the branch that I am on in terms of commits. I could just do a
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Can I run multiple programs in a Docker container?
...b app. I'd like to give Docker a try but I'm not sure how I'm meant to use more than one program. The documentations says there can only be only ENTRYPOINT so how can I have Mongo and my flask application. Or do they need to be in separate containers, in which case how do they talk to each other and...
Windows: How to specify multiline command on command prompt?
...tes) are: &|()
So the equivalent of your linux example would be (the More? being a prompt):
C:\> dir ^
More? C:\Windows
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How to explain Katana and OWIN in simple words and uses?
...h intends to remove System.Web out of the way, and allow you to use IIS on more "cleaner" way, without any unnecessary libraries or modules. Helios is now in pre-release version, and is waiting for more community feedback in order to make it fully supported Microsoft product.
Hope this explanation ...
Using ls to list directories and their total sizes
... du --max-depth 1 only shows file/folder sizes of 1 deep in the tree, no more clutter and easy to find large folders within a folder.
– CousinCocaine
May 5 '14 at 19:27
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