class Candidate < ActiveRecord::Base
+ belongs_to :election
+ validates_presence_of :name
+
+ # i have to call this picture_assoc because picture= does not overload
+ # the normal association method made by has_one
+ has_one :picture_obj, :class_name => "Picture"
+
+ # validate uniqueness of a name *within a given election*
+
+ def <=>(other)
+ self.name <=> other.name
+ end
+
+ def to_s
+ name
+ end
+
+ def picture
+ picture_obj
+ end
+
+ def picture=(field)
+ if field and field.length > 0
+ self.picture_obj = Picture.new.set_from_field(field)
+ return picture_obj.save
+ else
+ return false
+ end
+ end
+
+ def picture?
+ !self.picture_obj.nil?
+ end
+
end
+