Module: Familia::Features::ExternalIdentifier::ModelClassMethods

Defined in:
lib/familia/features/external_identifier.rb

Overview

ExternalIdentifier::ModelClassMethods

Instance Method Summary collapse

Instance Method Details

#find_by_extid(extid) ⇒ Object?

Find an object by its external identifier

Parameters:

  • extid (String) —

    The external identifier to search for

Returns:

  • (Object, nil) —

    The object if found, nil otherwise



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# File 'lib/familia/features/external_identifier.rb', line 159

def find_by_extid(extid)
  return nil if extid.to_s.empty?

  if Familia.debug?
    reference = caller(1..1).first
    Familia.trace :FIND_BY_EXTID, nil, extid, reference
  end

  # Look up the primary ID from the external ID mapping
  primary_id = extid_lookup[extid]
  return nil if primary_id.nil?

  # Find the object by its primary ID
  find_by_id(primary_id)
rescue Familia::NotFound
  # If the object was deleted but mapping wasn't cleaned up
  # we could autoclean here, as long as we log it.
  # extid_lookup.remove_field(extid)
  nil
end