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Rails 4: before_filter vs. before_action
In rails >4.0.0 generators creates CRUD operations with before_action not before_filter . It seems to do the same thing. So what's the difference between these two?
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Print array to a file
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Either var_export or set print_r to return the output instead of printing it.
Example from PHP manual
$b = array (
'm' => 'monkey',
'foo' => 'bar',
'x' => array ('x', 'y', 'z'));
$results = print_r($b, true); // $...
When to use dynamic vs. static libraries
...ed with is the version of the code that will run.
Dynamic libraries are stored and versioned separately. It's possible for a version of the dynamic library to be loaded that wasn't the original one that shipped with your code if the update is considered binary compatible with the original version.
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How to access object attribute given string corresponding to name of that attribute
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There is also delattr for deleting attributes, but this is rarely used.
– Dave Kirby
Apr 10 '10 at 7:33
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What are the differences between PMD and FindBugs?
...larities between PMD and FindBugs. I believe a key difference is that PMD works on source code, while FindBugs works on compiled bytecode files. But in terms of capabilities, should it be an either/or choice or do they complement each other?
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Creating PHP class instance with a string
...and class ClassTwo {} . I am getting a string which can be either "One" or "Two" .
4 Answers
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schema builder laravel migrations unique on two columns
...across multiple columns.
$table->unique(array('mytext', 'user_id'));
or (a little neater)
$table->unique(['mytext', 'user_id']);
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Why are unsigned int's not CLS compliant?
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Not all languages have the concept of unsigned ints. For example VB 6 had no concept of unsigned ints which I suspect drove the decision of the designers of VB7/7.1 not to implement as well (it's implemented now in VB8).
To quote:
http://msdn.microsoft.com/en-us/library/12a7a7h...
Python to print out status bar and percentage
... go with one of the other answers.
A simple example of how to use it:
import progressbar
from time import sleep
bar = progressbar.ProgressBar(maxval=20, \
widgets=[progressbar.Bar('=', '[', ']'), ' ', progressbar.Percentage()])
bar.start()
for i in xrange(20):
bar.update(i+1)
sleep(0.1...
Using .otf fonts on web browsers
I'm working on a website that requires font trials online, the fonts I have are all .otf
2 Answers
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