Rails - Dec 2010 - Problems with attachments

Hello everybody

I have some problems with an attachments.

I have the next model

class Profile < ActiveRecord::Base


  belongs_to :user

  before_create :set_default_icon

  has_attached_file :icon, {
    :url => "/
system/:class/:attachment/:id/:style_:basename.:extension",
    :styles => {
      :big    => Tog::Plugins.settings(:tog_social,
"profile.image.versions.big"),
      :medium => Tog::Plugins.settings(:tog_social,
"profile.image.versions.medium"),
      :small  => Tog::Plugins.settings(:tog_social,
"profile.image.versions.small"),
      :tiny   => Tog::Plugins.settings(:tog_social,
"profile.image.versions.tiny")
    }}.merge(Tog::Plugins.storage_options)

  has_attached_file :pdf, {
    :url => "/
system/:class/:attachment/:id/:style_:basename.:extension",
    :path => "/
system/:rails_root/:public/:profile/:pdfs/:id/:style/:basename.:extension"
  }.merge(Tog::Plugins.storage_options)

  validates_attachment_content_type :pdf, :content_type =>
[ ''application/pdf'', ''application/msword'',
 
''application/vnd.openxmlformats-
officedocument.wordprocessingml.document'' ],
                                    :message => ''Asegurese que el
fichero tiene la extensión .pdf o .doc''

end

When i put validates_attachment_content_type :pdf ¿is obligatory that
i have to upload a file?

because if I only upload a photo then when i submit on my form fails
because i don''t update a pdf.

Can anyone help me?

thanks.

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