app/controllers/monologue/tags_controller.rb
class Monologue::TagsController < Monologue::ApplicationController
def show
@tag = retrieve_tag
if @tag
@page = nil
@posts = @tag.posts_with_tag
else
redirect_to :root ,notice: "No post found with label \"#{params[:tag]}\""
end
end
private
def retrieve_tag
Monologue::Tag.where("lower(name) = ?", params[:tag].mb_chars.to_s.downcase).first
end
end