fix delete learning objects from collections

app/controllers/collections_controller.rb

@@ -209,8 +209,12 @@ class CollectionsController < ApplicationController
   end
 
   def authorize_action
-    @collection ||= Collection.new
-    authorize @collection
+    if !@collections.nil?
+      @collections.each { |c| authorize c }
+    else
+      @collection ||= Collection.new
+      authorize @collection
+    end
   end
 
 end

app/policies/collection_policy.rb

@@ -3,8 +3,6 @@ class CollectionPolicy < ApplicationPolicy
   include FollowablePolicy
 
   class Scope < Scope
-
-
     def initialize (user, user_id, scope)
       @user = user
       @user_id = user_id
@@ -12,7 +10,6 @@ class CollectionPolicy < ApplicationPolicy
     end
 
     def resolve
-
       if @user.try(:id) == @user_id || @user.try(:is_admin?)
         scope.all
       else
@@ -21,7 +18,6 @@ class CollectionPolicy < ApplicationPolicy
     end
   end
 
-
   def create?
     record if user_exists?
   end