deiga/new-Roydon

class Show
    include Mongoid::Document
    include Mongoid::Timestamps

    field :title,         :type => String
    field :url,         :type => String
    field :location,     :type => String
    field :duration,     :type => Integer, :default => 1
    field :date,         :type => Date

    default_scope asc(:date)

    # Validations
    url_regex = /\Ahttp\:\/\/[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(\/\S*)?\z/i
    validates :title, :url, :location, :date, :presence => true
    validates :duration, :numericality => { :interger_only => true, :greater_than_or_equal_to => 1 }
    validates :url , :format => { :with => url_regex }

    def format_date
        time = Date.parse(self.date.to_s)
        date_string = time.strftime('%d.%m.')
        if self.duration > 1
            unless (self.date.next_month.at_beginning_of_month - 1) == self.date
                date_string = time.strftime('%d.')
            end

            date_string << '-'
            date_string << time.next_day(self.duration-1).strftime('%d.%m.')
        end
        date_string
    end
end