Ruby on Rails

On 24 October 2012 21:01, Werner <webagentur.laude@googlemail.com> wrote:
> Hi..
> I have a select which I want to validate if a value is selected, otherwise
> not.
>
> <%= f.collection_select :parent_id, Project.mainprojects.active, :id,
> :project_name, :include_blank => 'Partproject?', :allow_nil => true%>
>
> how is the correct way..?
>
> tried..in model
> if :project_id
> if :project_id?
> if :project_id.blank?
>
>
> etc . etc.
> But nothing works..

So what is the value of project_id that you are trying to test for?
If you are not sure then have a look at the Rails Guide on debugging
which will show you techniques that you can use to debug your code.
Then you can find out what is the value of project_id and why your
tests are not working.

Colin

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