ensl.org/app/models/concerns/extra.rb

module Extra
	extend ActiveSupport::Concern

	CODING_HTML = 0
	CODING_BBCODE = 1
	CODING_MARKDOWN = 2

  included do
  	def codings
			{
				CODING_HTML => "Plain HTML",
				CODING_BBCODE => "BBCode",
				CODING_MARKDOWN => "Markdown"
			}
		end

		def check_params(params, filter)
			(params.instance_of?(Array) ? params : params.keys).each do |key|
	      return false unless filter.include? key.to_sym
	    end
	    return true
		end

		def error_messages
			self.errors.full_messages.uniq
		end

	  def bbcode_to_html(text)
	    Sanitize.clean(text.to_s).bbcode_to_html.gsub(/\n|\r\n/, "<br>").html_safe
	  end

		def move_up(scope, column = "position")
			n = 0
			objects = self.class.all(conditions: scope, order: column)
			binding.pry
			objects.each do |item|
				if item.id == id and n > 0
					old_position = item.read_attribute(:column)
					item.update_attribute(column, objects.fetch(n-1).read_attribute(:column))
					objects.fetch(n-1).update_attribute(column, old_position)
				end
				n = n + 1
			end
		end

		def move_down(scope, column = "position")
			n = 0
			objects = self.class.all(conditions: scope, order: column)
			binding.pry
			objects.each do |item|
				if item.id == id and n < (objects.length-1)
					old_position = item.read_attribute(:column)
					item.update_attribute(column, objects.fetch(n+1).read_attribute(:column))
					objects.fetch(n+1).update_attribute(column, old_position)
				end
				n = n + 1
			end
	  end

		def can_show? cuser
			true
		end

		def can_create? cuser
			true
		end

		def can_update? cuser
			true
		end

		def can_destroy? cuser
			true
		end
	end
end