From: "Jan E." <lists@...>
Date: 2012-07-17T20:59:04+09:00
Subject: Re: undefined method error

OK, I see what you mean. You want to use the values of 
"database_columns" as method names.

However, you cannot simply write ".database_columns[0]". This will be 
interpreted as calling the method "database_columns". You have to use 
"send" or "public_send", which allows you to pass the method name as a 
string:

rid.send(database_columns[0], '(value for title)')

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