- validates_presence_of :id
- validates_length_of :k, :v, :maximum => 255, :allow_blank => true
- validates_uniqueness_of :id, :scope => :k
- validates_numericality_of :id, :only_integer => true
+ validates_presence_of :relation
+ validates_length_of :k, :maximum => 255, :allow_blank => true
+ validates_uniqueness_of :k, :scope => :relation_id
+ validates_length_of :v, :maximum => 255, :allow_blank => true