You might use the attr_accessible method to create getters and setters for a class that has attributes which don't map directly to corresponding fields in a database. For example let's take the scenario where you are processing a credit card transaction. ...

If you want to get version information about a gem the easiest way to do it is with this command gem list For example gem list activemerchant will output the activemerchant versions I have installed. You can pass only part of the name like gem list ...

apt-get install openssl openssl genrsa -des3 -out server.key 1024 openssl req -new -key server.key -out server.csr You'll be prompted to enter a password (don't forget it!) as well as fill in company identity information. The most important part is the ...

It's a pretty straightforward process. Download the source and compile it. There isn't a package for it so here are the commands. wget http://sphinxsearch.com/downloads/sphinx-0.9.8.1.tar.gz tar xzvf sphinx-0.9.8.1.tar.gz cd sphinx-0.9.8.1/ ./configure...

The format is as follows ffmpeg -i <input file> -ss <starting point> -t <length of capture> <output file> ffmpeg -i Input_File.flv -ss 00:00:00 -t 00:10:00 Output_Filename.flv http://www.surfthedream.com.au/blog/Archives/november...

[youtube]http://www.youtube.com/watch?v=sb2xzeWf-PM[/youtube]

[youtube]http://www.youtube.com/watch?v=p5EIrSM8dCA[/youtube]

To make child attributes accessible to your model through a nested forms (Rails 2.3) you'll need to add the "#{child_class}_attributes" to the attr_accessible method in your parent class. If you don't use attr_accessible in your parent model (you would do...

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Just for reference... class Member < ActiveRecord::Base has_one :member_profile accepts_nested_attributes_for :member_profile end ...