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Rails: around_* callbacks
I have read the documentation at http://api.rubyonrails.org/classes/ActiveRecord/Callbacks.html , but don't understand when the around_* callbacks are triggered in relation to before_* and after_* .
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How to get a reference to current module's attributes in Python
...module
where it is defined, not the module
from which it is called).
http://docs.python.org/library/functions.html#globals
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What is the fastest way to check if a class has a function defined?
...a function invert_opt defined. Here is the documentation for you to graze
https://docs.python.org/2/library/functions.html#hasattr
https://docs.python.org/3/library/functions.html#hasattr
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Changing password with Oracle SQL Developer
...this point you can right click a data source and reset your password.
See http://www.thatjeffsmith.com/archive/2012/11/resetting-your-oracle-user-password-with-sql-developer/ for a complete walk-through
Also see the comment in the oracle docs: http://docs.oracle.com/cd/E35137_01/appdev.32/e35117/...
Regex lookahead, lookbehind and atomic groups
...n succeed as s immediately follows in foots, and stop.
Some resources
http://www.regular-expressions.info/lookaround.html
http://www.rexegg.com/regex-lookarounds.html
Online testers
https://regex101.com
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How to manage client-side JavaScript dependencies? [closed]
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paths: {
jquery: "libs/jquery", // Local
underscore: "http://underscorejs.org/underscore-min.js", // Remote
backbone: "https://github.com/documentcloud/backbone/blob/master/backbone-min.js" // Remote on github
},
shim: {
backbone: {
deps: ["un...
Installing Java 7 on Ubuntu
... looking for Java 7 on a version of Ubuntu that no longer supports it, see https://askubuntu.com/questions/761127/how-do-i-install-openjdk-7-on-ubuntu-16-04-or-higher .
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How to create a drop-down list?
...s is the basics but there is more to be self taught with experimentation.
https://developer.android.com/guide/topics/ui/controls/spinner.html
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How to generate keyboard events in Python?
...s import CFRelease
from Quartz.CoreGraphics import kCGHIDEventTap
# From http://stackoverflow.com/questions/281133/controlling-the-mouse-from-python-in-os-x
# and from https://developer.apple.com/library/mac/documentation/Carbon/Reference/QuartzEventServicesRef/index.html#//apple_ref/c/func/CGEven...
Animate a custom Dialog
...tem>
</style>
Inside anim/fadein.xml
<alpha xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/accelerate_interpolator"
android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="500" />
Inside anim/fadeout.xml
<alpha x...