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OS detecting makefile
I routinely work on several different computers and several different operating systems, which are Mac OS X, Linux, or Solaris. For the project I'm working on, I pull my code from a remote git repository.
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Rails Root directory path?
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In Rails 3 and newer:
Rails.root
which returns a Pathname object. If you want a string you have to add .to_s. If you want another path in your Rails app, you can use join like this:
Rails.root.join('app', 'assets', 'images', 'logo.png')
In Rails 2 you can use the RAILS_ROOT constant, whi...
How to upgrade rubygems
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without sudo if you installed gems as a regular user (installing gems as root is not very nice anyway).
– akostadinov
Sep 6 '16 at 6:53
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List of special characters for SQL LIKE clause
...with ean (Dean, Sean, and so on).
[ ] Any single character within the specified range ([a-f]) or set ([abcdef]).
WHERE au_lname LIKE '[C-P]arsen' finds author last names ending with arsen and starting with any single character between C and P, for example Carsen, Larsen, Karsen, and so on. In range...
MongoDB and “joins” [duplicate]
... database) on the other hand will resolve relationships and return them as if they were a single table (you "join two tables into one").
You can read more about DBRef here:
http://docs.mongodb.org/manual/applications/database-references/
There are two possible solutions for resolving references. O...
How to download a single commit-diff from GitHub?
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OK, found the answer myself.
Adding .patch (or .diff) to the commit-URL will give a nice patch:
https://github.com/foo/bar/commit/${SHA}.patch
Thanks to Ten Things You Didn't Know Git And GitHub Could Do...
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Installing PG gem on OS X - failure to build native extension
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If you are using Ubuntu try to install following lib file
sudo apt-get install libpq-dev
and then
gem install pg
worked for me.
share
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How to make Google Chrome JavaScript console persistent?
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If anyone's still looking for this, I'm on Chrome 15.0.874.58 beta-m and I have a checkbox in Developer Tools > Settings labelled "Console: Preserve log on navigation". Does the job nicely.
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TortoiseSVN icons not showing up under Windows 7
...will hijack a bunch of the 11 possible overlay icons (boy would it be nice if Microsoft upped the number of these as the number of applications that use them seem to increase and increase)...
You can see what overlays are set up, and change them (at your own risk) in the registry here:
HKEY_LOCAL_...
How to get instance variables in Python?
...in Python to get an array of all a class' instance variables? For example, if I have this code:
10 Answers
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