Ruby on Rails

On 26 April 2012 00:31, Christopher D. <lists@ruby-forum.com> wrote:
> Let's say I have a model called User. User has two attributes or table
> columns: id, username
>
> By using the code below I can check that there is a username "Tom" and
> return 1 ifthere is and 0 if there is not
>
> User.find_by_username("Tom")? 1 : 0
>
> How would I find out Tom's corresponding id?
>
> For example I'm looking for something along the lines of:
> User.find_by_username("Tom").id

That will work except that you should probably check that Tom exists,
as it will throw an error if he does not (as you would be effectively
saying nil.id).

Colin

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