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Check if OneToOneField is None in Django
... doesn't work all the time. In case you want to work with select_related() now or in the future -- or maybe even to be sure you also handle other sorts of magic which may happen elsewhere -- you have to extend the test as follows: if hasattr(object, 'onetoonerevrelattr') and object.onetoonerevrelatt...
Where to find Java JDK Source Code? [closed]
... just had to tell Eclipse where this file is and I could see the code. But now I don't have the file anymore...
11 Answers
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Caching a jquery ajax response in javascript/browser
...ve to bother with all the mess in the $.ajax() as I use $.ajaxPrefilter(). Now just setting {cache: true} is enough to handle the cache correctly :
var localCache = {
/**
* timeout for cache in millis
* @type {number}
*/
timeout: 30000,
/**
* @type {{_: number, data...
How to tell Eclipse Workspace?
...It changed to that workspace which has never been closed. That is what is now displayed in that field.
– L. D. James
Dec 20 '15 at 14:42
1
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How to log a method's execution time exactly in milliseconds?
...SDate date]
#define TOCK NSLog(@"Time: %f", -[startTime timeIntervalSinceNow])
Use it like this:
TICK;
/* ... Do Some Work Here ... */
TOCK;
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Unique Constraint in Entity Framework Code First
...d compliant you should absolutely be able to enforce uniqueness this way. Now whether EF allows you to properly manage the transaction lifecycle this way is another question.
– mattmc3
May 1 '11 at 0:21
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Best way to do multiple constructors in PHP
...l properties from array
}
}
?>
Then if i want a Student where i know the ID:
$student = Student::withID( $id );
Or if i have an array of the db row:
$student = Student::withRow( $row );
Technically you're not building multiple constructors, just static helper methods, but you get to ...
What is the difference between “text” and new String(“text”)?
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If i write: String s = new String("abc"); And now i write: String s = "abc"; Will String s = "abc"; create a new String literal in the String pool?
– Kaveesh Kanwal
Apr 16 '15 at 18:34
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Filter by property
...) if x.myProperty == [...]]
MyModel.objects.filter(id__in=objects_id)
I know it's not the most performatic solution, but may help in simple cases as mine
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How to write a CSS hack for IE 11? [duplicate]
...r-radius. True story. So you might find yourself in a situation where you know that you are writing correct code whereas one specific browser has a bug hence generating the necessity of using such a hack.
– hurrtz
Jun 24 '14 at 10:11
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