Colin Law wrote in post #964287:
> On 27 November 2010 14:10, Greg Ma <li...@ruby-forum.com> wrote:
>>   alerts.each do |alert|
>>    csv << [alert.id, alert.email, alert.city, alert.frequence]
>>   end
>>  end
>
> Have you used ruby-debug or similar method to break into here to see
> whether csv_string is setup correctly?
>
> Colin

yes it looks correct

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