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Rails: Default sort order for a rails model?
...eRecord::Base
default_scope { order(created_at: :desc) }
end
For Rails 2.3, 3, you need this instead:
default_scope order('created_at DESC')
For Rails 2.x:
default_scope :order => 'created_at DESC'
Where created_at is the field you want the default sorting to be done on.
Note: ASC is...
How to redirect output to a file and stdout
...e output.file
If you want to include stderr, do:
program [arguments...] 2>&1 | tee outfile
2>&1 redirects channel 2 (stderr/standard error) into channel 1 (stdout/standard output), such that both is written as stdout. It is also directed to the given output file as of the tee comm...
Concatenating two one-dimensional NumPy arrays
...separate arguments.
From the NumPy documentation:
numpy.concatenate((a1, a2, ...), axis=0)
Join a sequence of arrays together.
It was trying to interpret your b as the axis parameter, which is why it complained it couldn't convert it into a scalar.
...
Remove insignificant trailing zeros from a number?
...the first place since it was created as a Number, not a String.
var n = 1.245000
var noZeroes = n.toString() // "1.245"
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jQuery Ajax calls and the Html.AntiForgeryToken()
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20 Answers
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What is the string concatenation operator in Oracle?
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238
It is ||, for example:
select 'Mr ' || ename from emp;
The only "interesting" feature I can...
Streaming Audio from A URL in Android using MediaPlayer?
... .execute("http://www.virginmegastore.me/Library/Music/CD_001214/Tracks/Track1.mp3");
else {
if (!mediaPlayer.isPlaying())
mediaPlayer.start();
}
playPause = true;
} else {
btn.setBackgroundReso...
Converting timestamp to time ago in PHP e.g 1 day ago, 2 days ago…
I am trying to convert a timestamp of the format 2009-09-12 20:57:19 and turn it into something like 3 minutes ago with PHP.
...
Checkboxes in web pages – how to make them bigger?
... height:30px;
background:white;
border-radius:5px;
border:2px solid #555;
}
input[type='checkbox']:checked {
background: #abd;
}
<input type="checkbox" />
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PHP filesize MB/KB conversion [duplicate]
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