def selections(field, options = {}, html_options = {})
      SelectionTag.new(self, object, field, options, html_options).select_tag
    end
def selections(field, options = {}, html_options = {})
      SelectionTag.new(self, object, field, options, html_options).select_tag
    end
Create a select list based on the field name finding items within Selection.

 Example
   form_for(@ticket) do |f|
     f.select("priority")

 Uses priority_id from the ticket table and creates options list based on items in Selection table with a system_code of
 either priority or ticket_priority

 options = {} and html_options = {} suport all the keys as the rails library select_tag does.

 options
 * +system_code+ - Overrides the automatic system_code name based on the fieldname and looks up the list of items in Selection