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Rolling median algorithm in C
...irani has some C and Fortran code on fast median binning which may be a suitable starting point for a windowed approach.
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How to express a One-To-Many relationship in Django
...erated by django for you :-). We only need to define foreignKey in related table. In other words, we only need to define ManyToOne relation by using foreignKey.
class Car(models.Model):
// wheels = models.oneToMany() to get wheels of this car [**it is not required to define**].
class Wheel(mo...
Android search with Fragments
...agment if it's visible. The toughest part was repopulating the Suggestions Table on fragment load with the right data to let me handle displaying suggestions as well as to handle search submit and clicking on suggestions. But I've got a nice framework in place for future apps now.. :-)
...
PDO MySQL: Use PDO::ATTR_EMULATE_PREPARES or not?
...o 0x345678AB on 64bit machine )
Inability to make simple queries like LOCK TABLES ( it throws SQLSTATE[HY000]: General error: 2030 This command is not supported in the prepared statement protocol yet exception )
Need to fetch all rows from result or close cursor before next query ( with mysqlnd or e...
How to use Regular Expressions (Regex) in Microsoft Excel both in-cell and loops
...ing
E.g. a$ Last character must be lower case letter a
Precedence table:
Order Name Representation
1 Parentheses ( )
2 Multipliers ? + * {m,n} {m, n}?
3 Sequence & Anchors abc ^ $
4 Alternation |
Predefined Character Abbr...
How to get a reference to current module's attributes in Python
...obals() — Return a dictionary
representing the current global symbol
table. This is always the dictionary
of the current module (inside a
function or method, this is the module
where it is defined, not the module
from which it is called).
http://docs.python.org/library/functions.html...
Why does JPA have a @Transient annotation?
...gine a situation where you have a huge database with a lot of columns in a table, and your project/system uses tools to generate entities from database. (Hibernate has those, etc...)
Now, suppose that by your business logic you need a particular field NOT to be persisted. You have to "configure" yo...
Where are static methods and static variables stored in Java?
...ich is called Method Area. Even this answer is not wrong. It is just a debatable topic whether Permgen Area is a part of heap or not. Obviously perceptions differ from person to person. In my opinion we provide heap space and permgen space differently in JVM arguments. So it is a good assumption to ...
On design patterns: When should I use the singleton?
...my quest for the truth I discovered that there are actually very few "acceptable" reasons to use a Singleton.
One reason that tends to come up over and over again on the internets is that of a "logging" class (which you mentioned). In this case, a Singleton can be used instead of a single instance ...
Why should I use 'li' instead of 'div'?
... comprised of tags that mean certain things by themselves. And there are established rules/guidelines/ways to use them so that your published HTML document conveys what you want it to mean.
If you list something in your document, then add an ordered list (UL) or an unordered list (OL). On the othe...