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Rails where condition using NOT NIL
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516
The canonical way to do this with Rails 3:
Foo.includes(:bar).where("bars.id IS NOT NULL")
A...
How to create full compressed tar file using Python?
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188
To build a .tar.gz (aka .tgz) for an entire directory tree:
import tarfile
import os.path
de...
Creating an official github mirror
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114
Based on communicating with GitHub's support team, I found that GitHub currently offers no dir...
PDO get the last ID inserted
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371
That's because that's an SQL function, not PHP. You can use PDO::lastInsertId().
Like:
$stmt ...
Does a C# app track how long its been running?
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165
The System.Diagnostics.Process class has a property containing the start time which you can us...
How to change the name of the active scheme in Xcode?
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edited Apr 23 '19 at 16:11
answered May 7 '13 at 21:35
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How do I push a local Git branch to master branch in the remote?
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$ git push origin develop:master
or, more generally
$ git push <remote> <local branc...
What is difference between cacerts and keystore?
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140
'cacerts' is a truststore. A trust store is used to authenticate peers. A keystore is used to ...
What are the parameters sent to .fail in jQuery?
...jqXHR.error(), and jqXHR.complete() callbacks will be deprecated in jQuery 1.8. To prepare your code for their eventual removal, use jqXHR.done(), jqXHR.fail(), and jqXHR.always() instead.
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