Paperclip :style depending on model (has_many polymorphic images)

Question

I have set up my models to use a polymorphic Image model. This is working fine, however I am wondering if it is possible to change the :styles setting for each model. Found some

Answer 1

class Banner < ActiveRecord::Base  

  belongs_to :banner_categoria
  validates :banner_categoria_id ,{:presence =>{:message => "não informada"}} 

  has_attached_file :arquivo
  after_initialize :init_attachment




  def init_attachment
    self.class.has_attached_file :arquivo,
      :url => "/system/:class/:attachment/:id/:style/:basename.:extension",
      :path => ":rails_root/public/system/:class/:attachment/:id/:style/:basename.:extension",
      :styles => hash = {
      :banner => {
        :geometry => "#{self.banner_categoria.largura}x#{self.banner_categoria.altura}>",
        :quality => 80
      },
      :thumb => "100x100#"
    }
  end

end