Re: [Rails] validation check

On Wed, Oct 24, 2012 at 3:01 PM, 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%>

so the name of the input is SOMETHING[parent_id]  right?

then you have to validate

if self.parent_id.blank?

Javier

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