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Rails 3 check if attribute changed
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answered Feb 19 '11 at 13:57
Peter BrownPeter Brown
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How to create a new (and empty!) “root” branch?
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vcsjonesvcsjones
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@UniqueConstraint and @Column(unique = true) in hibernate annotation
...dex.
– Dalibor Filus
Feb 28 '19 at 17:36
Beware though that columnNames must be actual names in the database. It shoul...
How to properly add cross-site request forgery (CSRF) token using PHP
...t mixes it deterministically
Try this out:
Generating a CSRF Token
PHP 7
session_start();
if (empty($_SESSION['token'])) {
$_SESSION['token'] = bin2hex(random_bytes(32));
}
$token = $_SESSION['token'];
Sidenote: One of my employer's open source projects is an initiative to backport random...
Importing from a relative path in Python
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edited Nov 27 '14 at 14:17
answered Sep 21 '11 at 20:13
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Shading a kernel density plot between two points.
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75
With the polygon() function, see its help page and I believe we had similar questions here too....
How to branch with TortoiseHG
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edited Aug 4 '17 at 23:44
SSteve
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answ...
If threads share the same PID, how can they be identified?
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277
The four threads will have the same PID but only when viewed from above. What you (as a user) c...
Difference between UTF-8 and UTF-16?
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edited Mar 19 '17 at 5:23
answered Jan 11 '11 at 7:50
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Difference between std::result_of and decltype
... is ugly :)
– kennytm
Nov 1 '12 at 17:05
1
@DavidRodríguez-dribeas Your comment has unclosed par...