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Ruby on Rails. How do I use the Active Record .build method in a :belongs to relationship?

I have been unable to find any documentation on the .build method in Rails (i am currently using 2.0.2). 2 Answers ...
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How to format a number 0..9 to display with 2 digits (it's NOT a date)

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invalid command code ., despite escaping periods, using sed

Being forced to use CVS for a current client and the address changed for the remote repo. The only way I can find to change the remote address in my local code is a recursive search and replace. ...
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Unable to find a locale path to store translations for file __init__.py

I'm trying to translate a Django app. I created some strings with {% trans %} in my templates. However, when I execute the following command in my app folder, I receive an error message: ...
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Converting NumPy array into Python List structure?

How do I convert a NumPy array to a Python List (for example [[1,2,3],[4,5,6]] ), and do it reasonably fast? 5 Answers ...
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Is PHP's count() function O(1) or O(n) for arrays?

Does count() really count the all the elements of a PHP array, or is this value cached somewhere and just gets retrieved? ...
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In Java, how do I parse XML as a String instead of a file?

I have the following code: 6 Answers 6 ...
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Why do table names in SQL Server start with “dbo”?

At least on my local instance, when I create tables, they are all prefixed with "dbo.". Why is that? 3 Answers ...
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How do I install an old version of Django on virtualenv?

This may sound like a stupid question, since the very purpose of virtualenv is to this exactly: Installing some specific version of a package (in this case Django) inside the virtual environment. But it's exactly what I want to do, and I can't figure it out. ...
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Write string to output stream

I have several output listeners that are implementing OutputStream. It can be either a PrintStream writing to stdout or to a File, or it can be writing to memory or any other output destination; therefore, I specified OutputStream as (an) argument in the method. ...