Adds first version of comment moderation

Missing:
* Ensure removing a flag updates the flagged_at attribute correctly
* Showing the debate when the comment is not a “root”
* Filter (pending / reviewed / all)
* Order
* Same for debates

app/controllers/moderation/comments_controller.rb

@@ -1,8 +1,31 @@
 class Moderation::CommentsController < Moderation::BaseController
 
+  before_filter :load_comments, only: :index
+
+  load_and_authorize_resource
+
+  def index
+    @comments = @comments.page(params[:page])
+  end
+
   def hide
-    @comment = Comment.find(params[:id])
     @comment.hide
   end
 
-end
+  def hide_in_moderation_screen
+    @comment.hide
+    redirect_to action: :index
+  end
+
+  def mark_as_reviewed
+    @comment.mark_as_reviewed
+    redirect_to action: :index
+  end
+
+  private
+
+  def load_comments
+    @comments = Comment.accessible_by(current_ability, :hide).where('inappropiate_flags_count > 0').includes(:commentable)
+  end
+
+end