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Django FileField with upload_to determined at runtime
...eed to use the filename given - you could override that in your upload_to callable too if you liked.
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The conversion of a datetime2 data type to a datetime data type resulted in an out-of-range value
...orm (headline, story, and image). ApplyPropertyChanges applies changes to all properties of the object, including your uninitialized DateTime, which is set to 0001-01-01, which is outside of the range of SQL Server's DATETIME.
Rather than using ApplyPropertyChanges, I'd suggest retrieving the obje...
Python argparse: Make at least one argument required
...
Dang, I like that vars. I just did .__dict__ and felt dumb before.
– Theo Belaire
Feb 13 '14 at 18:27
1
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What is the difference between bottom-up and top-down?
...ack size limit in languages which allow it, or 2) eat a constant factor of extra work to virtualize your stack (ick), or 3) program in continuation-passing style, which in effect also virtualizes your stack (not sure the complexity of this, but basically you will effectively take the deferred call c...
How can I copy the output of a command directly into my clipboard?
... down the complete procedure just in case anyone else needs it.
First install a 16 kB program called xclip:
sudo apt-get install xclip
You can then pipe the output into xclip to be copied into the clipboard:
cat file | xclip
To paste the text you just copied, you shall use:
xclip -o
To si...
How do I select a random value from an enumeration?
...
Use Enum.GetValues to retrieve an array of all values. Then select a random array item.
static Random _R = new Random ();
static T RandomEnumValue<T> ()
{
var v = Enum.GetValues (typeof (T));
return (T) v.GetValue (_R.Next(v.Length));
}
Test:
for (in...
Check if something is (not) in a list in Python
I have a list of tuples in Python , and I have a conditional where I want to take the branch ONLY if the tuple is not in the list (if it is in the list, then I don't want to take the if branch)
...
How to send file contents as body entity using cURL
...pecting: --header: "<header_name>:<header_value>" as a single string.
– Roy Hinkley
Jul 27 '17 at 18:36
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How to put a delay on AngularJS instant search?
...es beyond angular itself.
You need set a timeout and compare your current string with the past version, if both are the same then it performs the search.
$scope.$watch('searchStr', function (tmpStr)
{
if (!tmpStr || tmpStr.length == 0)
return 0;
$timeout(function() {
// if searchStr ...
How do you set, clear, and toggle a single bit?
...t;< n);
That will clear the nth bit of number. You must invert the bit string with the bitwise NOT operator (~), then AND it.
Toggling a bit
The XOR operator (^) can be used to toggle a bit.
number ^= 1UL << n;
That will toggle the nth bit of number.
Checking a bit
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