validates_presence_of :if

rubyonrails-talk
1

Hi     I have a table service_desk_resolution_codes as below id | name

2

Rather than putting your prompt text in the table, get rid of it, and when you need to provide a drop-down for resolution code use the :prompt argument to have rails insert the prompt for you. I believe that will allow you to just put a "validates_presence_of :resolution_code" in the appropriate model & rails will "know" not to accept the prompt value.

So your call to collection_select might look like:

<%= f.collection_select(:resolution_code,                         ResolutionCode.find(:all),                         :id,                         :name,                         {:prompt => 'Please select a resolution'}                         ) %>

HTH,

-Roy