Merge branch 'atomaka/bugfix/unique-passive-skill' into 'development'

Uniqueness constraint on passive skill



See merge request !6

app/models/passive_skill.rb

@@ -2,7 +2,8 @@ class PassiveSkill < ActiveRecord::Base
   has_paper_trail
 
   validates :name, presence: true
-  validates :description, presence: true
+  validates :description, presence: true,
+                          uniqueness: { scope: :name }
 
   default_scope { order(:name) }
 end