geoffevason

### Keybase proof

I hereby claim:

  * I am geoffevason on github.
  * I am geoffevason (https://keybase.io/geoffevason) on keybase.
  * I have a public key ASB107VJ0f4R57ix0SmEAWThbSs6b69C4YgJOcPNbp0MbQo

To claim this, I am signing this object:

geoffevason

usage: iTMSTransporter -m upload [-assetReplacementVerification <arg>] [-delete |
       -success <arg>] [-deleteFastTransportLog <arg>] [-errorLogs <arg>] -f <arg>
       [-failure <arg>] [-k <arg>] [-loghistory] [-numStreams <arg>] [-outputFormat
       <arg>] [-p <arg>] [-s <arg>]  [-t <arg>] [-throughput] -u <arg>
 -assetReplacementVerification <arg>   The -assetReplacementVerification option is
                                       only valid when the transport is 'Aspera',
                                       'Signiant' or DAV (the default).  Its value can
                                       be 'true' or 'false'.  When the value is true,
                                       a package will receive an error and not be
                                       uploaded if any of its files will be replaced

geoffevason

class Element < ActiveRecord::Base

  # This code lets us create the right type of class by passing in :type
  # eg:  Element.new(:type => 'TitleElement') will crteate a TitleElement
  class << self
    def class_from_args(a)
      if (h = a.first).is_a? Hash and (type = h[:type] || h['type']) and (klass = type.constantize) != self
        raise "Unknown type" unless klass < self # klass should be a descendant of us
        return klass
      end