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Rails and PostgreSQL: Role postgres does not exist
I have installed PostgreSQL on my Mac OS Lion, and am working on a rails app. I use RVM to keep everything separate from my other Rails apps.
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String slugification in Python
...fy import slugify
txt = "This is a test ---"
r = slugify(txt)
self.assertEquals(r, "this-is-a-test")
txt = "This -- is a ## test ---"
r = slugify(txt)
self.assertEquals(r, "this-is-a-test")
txt = 'C\'est déjà l\'été.'
r = slugify(txt)
self.assertEquals(r, "cest-deja-lete")
txt = 'Nín hǎo. ...
java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing
...le.com/p/hamcrest/downloads/detail?name=hamcrest-all-1.3.jar&can=2&q=
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REST APIs: custom HTTP headers vs URL parameters
When do you use custom HTTP headers in the request part of a REST API ?
8 Answers
8
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Linux command: How to 'find' only text files?
...ay to use find to find only non-binary files:
find . -type f -exec grep -Iq . {} \; -print
The -I option to grep tells it to immediately ignore binary files and the . option along with the -q will make it immediately match text files so it goes very fast. You can change the -print to a -print0 fo...
RegEx for matching UK Postcodes
...x with an optional white space between the two segments (GIR 0AA)|((([A-Z-[QVX]][0-9][0-9]?)|(([A-Z-[QVX]][A-Z-[IJZ]][0-9][0-9]?)|(([A-Z-[QVX]][0-9][A-HJKSTUW])|([A-Z-[QVX]][A-Z-[IJZ]][0-9][ABEHMNPRVWXY]))))\s?[0-9][A-Z-[CIKMOV]]{2})
– gb2d
Jun 6 '12 at 18:06
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What is the --save option for npm install?
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You can also use -S, -D or -P which are equivalent of saving the package to an app dependency, a dev dependency or prod dependency. See more NPM shortcuts below:
-v: --version
-h, -?, --help, -H: --usage
-s, --silent: --loglevel silent
-q, --quiet: --loglevel warn
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#import using angle brackets < > and quote marks “ ”
...ting files in Objective-C. So far my observation has been that you use the quote marks "" for files in your project that you've got the implementation source to, and angle brackets <> when you're referencing a library or framework.
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Visual Studio immediate window command for Clear All
...ave their roots in MS-DOS DEBUG.EXE (specifically >d, >g, >p, >q, and >t come to mind).
Also worth noting, as it's only two keys to press: Context menu > Clear All invokes the same command and it can be navigated using keyboard. In the immediate window, you can press context-men...
Convert from MySQL datetime to another format with PHP
I have a datetime column in MySQL.
18 Answers
18
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