adjusted user role abilities

app/models/ability.rb

@@ -7,6 +7,7 @@ class Ability
     can :manage, :all if user.admin? 
     
     can :manage, Post if user.moderator?
+    can :manage, Topic if user.moderator?
     
     can :read, Category, :state => true
     can :read, Forum, :state => true, :category => { :state => true }
@@ -19,6 +20,8 @@ class Ability
     can :create, Post, :topic => { :locked => false } unless user.new_record?
     can :create, Topic unless user.new_record?
 
-    cannot :read, :all if user.banned?
+    cannot :update, :all if user.banned?
+    cannot :destroy, :all if user.banned?
+    cannot :create, :all if user.banned?
   end
 end