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What is the most efficient way to store tags in a database?
...tle:text[]
For more info, see this excellent post by Josh Berkus:
http://www.databasesoup.com/2015/01/tag-all-things.html
There are more various options compared thoroughly for performance and the one suggested above is the best overall.
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Rails: Check output of path helper from console
...; "/posts/3"
app.posts_path
#=> "/posts"
app.posts_url
#=> "http://www.example.com/posts"
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bash assign default value
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Please look at http://www.tldp.org/LDP/abs/html/parameter-substitution.html for examples
${parameter-default}, ${parameter:-default}
If parameter not set, use default. After the call, parameter is still not set.
Both forms are almost equivalent...
How do you remove the root CA certificate that fiddler installs
...g network testing), and you only want to remove it on one (source - http://www.cantoni.org/2013/11/06/capture-android-web-traffic-fiddler):
Go to the Security tab in settings
Tap Trusted credentials, then select the User tab
Tap on the Fiddler “Do not trust” certificate, then scroll down to r...
When does Java's Thread.sleep throw InterruptedException?
... From Don't swallow interrupts
See the entire paper here:
http://www.ibm.com/developerworks/java/library/j-jtp05236/index.html?ca=drs-
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How to log cron jobs?
...hes -), to define increment of ranges (slashes), etc. Take a look:
http://www.softpanorama.org/Utilities/cron.shtml
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How to send an email with Gmail as provider using Python?
...le you're logged in to your google account, and allow the access:
https://www.google.com/settings/security/lesssecureapps
Once that is set (see my screenshot below), it should work.
Login now works:
smtpserver = smtplib.SMTP("smtp.gmail.com", 587)
smtpserver.ehlo()
smtpserver.starttls()
smtpse...
How to use OpenSSL to encrypt/decrypt files?
...Your best source of information for openssl enc would probably be: https://www.openssl.org/docs/man1.1.1/man1/enc.html
Command line:
openssl enc takes the following form:
openssl enc -ciphername [-in filename] [-out filename] [-pass arg]
[-e] [-d] [-a/-base64] [-A] [-k password] [-kfile filename] ...
How to send a correct authorization header for basic authentication
... can include the user and password as part of the URL:
http://user:passwd@www.server.com/index.html
see this URL, for more
HTTP Basic Authentication credentials passed in URL and encryption
of course, you'll need the username password, it's not 'Basic hashstring.
hope this helps...
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git stash changes apply to new branch?
...it stash branch <branchname> [<stash>]
From the docs (https://www.kernel.org/pub/software/scm/git/docs/git-stash.html):
Creates and checks out a new branch named <branchname> starting from the commit at which the <stash> was originally created, applies the changes recorded ...