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Run a single migration file
...just run the code directly out of the ruby file:
rails console
>> require "db/migrate/20090408054532_add_foos.rb"
>> AddFoos.up
Note: newer versions of rails may require AddFoos.new.up rather than AddFoos.up.
An alternative way (without IRB) which relies on the fact that require retu...
What is the difference between Amazon S3 and Amazon EC2 instance?
I need to create a web application using php mysql and html. The no.of requests and data will be very high. I need Amazon server space.
...
How to get the current taxonomy term ID (not the slug) in WordPress?
I've created a taxonomy.php page in my WordPress theme folder. I would like to get the current term id for a function.
How can I get this?
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Generating a PNG with matplotlib when DISPLAY is undefined
...config/matplotlib'/matplotlibrc (as an example, seehttp://matplotlib.org/faq/troubleshooting_faq.html#locating-matplotlib-config-dir). See also matplotlib.org/users/customizing.html, which has an example config file at the bottom of the page. Find "agg" on that page and you'll see the config option ...
git reset --hard HEAD leaves untracked files behind
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My common command is git clean -qfdx here. Remove everything and do it silently.
– aragaer
May 25 '13 at 17:51
3
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How do I 'svn add' all unversioned files to SVN?
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svn add --force * --auto-props --parents --depth infinity -q
Great tip! One remark: my Eclipse adds new files to the ignore list automatically. It may be a matter of configuration, but anyhow: there is the --no-ignore option that helps.
After this, you can commit:
svn commit -m 'A...
What are the calling conventions for UNIX & Linux system calls (and user-space functions) on i386 an
...ory stacks)
For ARM there is various ABI:
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.subset.swdev.abi/index.html
https://developer.apple.com/library/ios/documentation/Xcode/Conceptual/iPhoneOSABIReference/iPhoneOSABIReference.pdf
ARM64 convention:
http://infocenter.arm.com/help...
break out of if and foreach
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A safer way to approach breaking a foreach or while loop in PHP is to nest an incrementing counter variable and if conditional inside of the original loop. This gives you tighter control than break; which can cause havoc elsewhere on a complicated page.
Example:
// Setup a counter
$...
NodeJS require a global module/package
... more info on the differences on the official Unity wiki: wiki.unity3d.com/index.php/UnityScript_versus_JavaScript
– Slipp D. Thompson
Mar 12 '17 at 8:00
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How do I create a unique ID in Java? [duplicate]
I'm looking for the best way to create a unique ID as a String in Java.
11 Answers
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