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Best practices to handle routes for STI subclasses in rails
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This is the simplest solution I was able to come up with with minimal side effect.
class Person < Contact
def self.model_name
Contact.model_name
end
end
Now url_for @person will map to contact_path as expected.
How it works: URL helpers rely on YourModel...
Is there any free OCR library for Android? [closed]
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I would recommend trying to wrap Tesseract in a JNI layer through Android NDK, rather than trying to port it to Android's Java. Tesseract already appears to be ported to ARM, so it should be easier to put a JNI API on top of it. Also, ...
Convert array of integers to comma-separated string
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@Kory: Using String.Split method, see msdn.microsoft.com/en-us/library/…
– Cheng Chen
Mar 12 '15 at 6:11
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How to convert nanoseconds to seconds using the TimeUnit enum?
...wrong - convert() and the toFoo() methods all return longs now docs.oracle.com/javase/6/docs/api/java/util/concurrent/…
– Riking
Jul 30 '13 at 1:58
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Ordering by specific field value first
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There's also the MySQL FIELD function.
If you want complete sorting for all possible values:
SELECT id, name, priority
FROM mytable
ORDER BY FIELD(name, "core", "board", "other")
If you only care that "core" is first and the other values don't matter:
SELECT id, name, pri...
Android WebView: handling orientation changes
...ges="orientation|screenSize"
for more info see:
http://developer.android.com/guide/topics/resources/runtime-changes.html#HandlingTheChange
https://developer.android.com/reference/android/app/Activity.html#ConfigurationChanges
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Commenting code in Notepad++
...d any means (not the manual way but something like in Emacs) to do a block comment in my code.
10 Answers
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What does SQL clause “GROUP BY 1” mean?
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77
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System.currentTimeMillis vs System.nanoTime
...r
than approximately 292 years (263
nanoseconds) will not accurately
compute elapsed time due to numerical
overflow.
For example, to measure how long some code takes to execute:
long startTime = System.nanoTime();
// ... the code being measured ...
long estimatedTime = System.nano...
Timeout jQuery effects
...te: As of jQuery 1.4 you can use the .delay( n ) method. http://api.jquery.com/delay/
$('.notice').fadeIn().delay(2000).fadeOut('slow');
Note: $.show() and $.hide() by default are not queued, so if you want to use $.delay() with them, you need to configure them that way:
$('.notice')
.show(...