eccolooooo

gistfile1.rb

class Image < ActiveRecord::Base
  has_secure_token :uuid, key_length: 48

  belongs_to :event
  belongs_to :user

  has_attached_file :image,
    :styles => { :medium => "400x400>", :thumb => "200x200>" },
    :default_url => "/images/:style/missing.png"

  validates_attachment_content_type :image,
    :content_type => ["image/jpg", "image/jpeg", "image/png", "image/gif"]

  def get_context_array(context_type, context_id)
    case context_type
    when 'cosplayer'
      user = User.find(context_id)
      if user
        images = user.images.order('created_at DESC')
      else
        false
      end
    else
      event = Event.find(context_id)
      if event
        images = event.images.order('created_at DESC')
      else
        false
      end
    end
    images
  end

  def previous_image(context_type, context_id)
    array = self.get_context_array(context_type, context_id)
    index = array.index(self)
    if index == 0
      current_index = array.length - 1
    else
      current_index = index - 1
    end
    array[current_index]
  end

  def next_image(context_type, context_id)
    array = self.get_context_array(context_type, context_id)
    index = array.index(self)
    last_index = array.length - 1
    if index == last_index
      current_index = 0
    else
      current_index = index + 1
    end
    array[current_index]
  end

  def reactify(context_type, context_id)
    tmp = Jbuilder.encode do |json|
      json.(self.decorate(context: {context_type: context_type, context_id: context_id}), :id, :url, :characters, :cosplayers, :user, :event, :previous_image_uuid, :next_image_uuid)
    end
    JSON.parse(tmp)
  end



end