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Foreign Key to multiple tables
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what’s the difference between Expires and Cache-Control headers?
...still interested, I leave this recommendation directly from google's boys.
https://developers.google.com/speed/docs/insights/LeverageBrowserCaching
They prefer Expires before than Cache-Control
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How to customize ?
...utifulsite.net/whipping-file-inputs-into-shape-with-bootstrap-3/
Source : https://stackoverflow.com/a/18164555/625952
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Convert an NSURL to an NSString
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Rspec, Rails: how to test private methods of controllers?
...Does this code get used in a lot of places?
Need a more generic approach?
https://www.relishapp.com/rspec/rspec-rails/v/2-8/docs/controller-specs/anonymous-controller
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How to create an object for a Django model with a many to many field?
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Save image from URL by paperclip
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Into official documentation is reported here https://github.com/thoughtbot/paperclip/wiki/Attachment-downloaded-from-a-URL
Anyway it seems not updated, because in last version of paperclip something has changed and this line of code
Remove an item from a dictionary when its key is unknown
...ve from a
c = {key:a[key] for key in a.keys() - {'z', 'w'}}
Also check: https://www.safaribooksonline.com/library/view/python-cookbook-3rd/9781449357337/ch01.html
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How to calculate time elapsed in bash script?
...{a[@]}"
The use of long number of seconds is valid and documented here:
https://www.gnu.org/software/coreutils/manual/html_node/Examples-of-date.html#Examples-of-date
Busybox date
A tool used in smaller devices (a very small executable to install): Busybox.
Either make a link to busybox call...
git cherry-pick says “…38c74d is a merge but no -m option was given”
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