visnup (owner)

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gist: 38554 Download_button fork
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Description:
validates_length_of_less_than_max_allowed_packet
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validates_length_of_less_than_max_allowed_packet.rb #
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  def self.max_allowed_packet
    r = connection.execute "SHOW GLOBAL VARIABLES LIKE 'max_allowed_packet'"
    r.fetch_row.last.to_i  rescue 128.megabytes
  end
  validates_length_of :data, :in => 1 .. max_allowed_packet,
    :allow_blank => true
  validates_length_of :file, :in => 1 .. max_allowed_packet,
    :allow_blank => true