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MySQL foreign key constraints, cascade delete
...ints won't do precisely what you want given your table design. Perhaps the best thing to do is to define a stored procedure that will delete a category the way you want, and then call that procedure whenever you want to delete a category.
CREATE PROCEDURE `DeleteCategory` (IN category_ID INT)
LANGU...
How do I control how Emacs makes backup files?
...in sensitive data.
Configuration
Here is a configuration that IMHO works best:
(defvar --backup-directory (concat user-emacs-directory "backups"))
(if (not (file-exists-p --backup-directory))
(make-directory --backup-directory t))
(setq backup-directory-alist `(("." . ,--backup-directory)...
How to create REST URLs without verbs?
...to alter state
Don't use mixed-case paths if you can help it; lowercase is best
Don't use implementation-specific extensions in your URIs (.php, .py, .pl, etc.)
Don't fall into RPC with your URIs
Do limit your URI space as much as possible
Do keep path segments short
Do prefer either /resource or /r...
Regular expression that matches valid IPv6 addresses
... this should be a "code smell" that perhaps regular expression are not the best suited solution here. (Although, I guess the op did ask for it...)
– Thanatos
Aug 17 '10 at 20:40
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Python (and Python C API): __new__ versus __init__
...me across this question (among others) when I was trying to understand the best way to define a class factory. I realized that one of the ways in which __new__ is conceptually different from __init__ is the fact that the benefit of __new__ is exactly what was stated in the question:
So the only ...
How to work around the stricter Java 8 Javadoc when using Maven
...fail on errors whereas with JDK7 Javadoc you do. So for this reason I like best the -Xdoclint option. The hope is it will be silently ignored if executed with a JDK7 Javadoc ?
– peterh
Mar 20 '14 at 10:20
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Log4Net, how to add a custom field to my logging
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Can someone suggest which Context is best for logging browser capabilities.
– VivekDev
Mar 10 '15 at 12:20
1
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What does “use strict” do in JavaScript, and what is the reasoning behind it?
... animal, "use strict" can be good stuff, but you have to do it right. The best time to go strict is when your project is greenfield and you are starting from scratch. Configure JSHint/JSLint with all the warnings and options cranked up as tight as your team can stomach, get a good build/test/assert...
How can I make a UITextField move up when the keyboard is present - on starting to edit?
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It's actually best just to use Apple's implementation, as provided in the docs. However, the code they provide is faulty. Replace the portion found in keyboardWasShown: just below the comments to the following:
NSDictionary* info = [aNoti...
Is pass-by-value a reasonable default in C++11?
...tended use. Readability is important, also for the optimizer.
This is the best precondition for an optimizer to create fastest code - in theory at least and if not in reality then in a few years reality.
Performance considerations are very often overrated in the context of parameter passing. Perfe...