Module: Uuidify::UuidifyConcern

Extended by:
ActiveSupport::Concern
Defined in:
lib/uuidify/uuidify_concern.rb

Overview

Mixin to add uuids to an active record model.

Defined Under Namespace

Modules: ClassMethods

Instance Method Summary collapse

Instance Method Details

#uuid ⇒ Object

Return a UUID, creating it if needed.



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# File 'lib/uuidify/uuidify_concern.rb', line 41

def uuid
  abort_if_unsaved!

  model_name = self.class.to_s
  model_id = self.id

  uuid = Uuidify::Uuid.where(:model_name => model_name, :model_id => model_id).first

  if uuid.nil?
    new_uuid = UUIDTools::UUID.timestamp_create
    new_uuid = Uuidify::Uuid.uuid_to_sql_string(new_uuid)

    uuid = Uuidify::Uuid.create(:model_name => model_name, :model_id => self.id, :model_uuid => new_uuid)
    uuid.save!
  end

  Uuidify::Uuid.uuid_from_sql_string(uuid.model_uuid)
end

#uuid=(new_uuid) ⇒ Object

Assign a UUID that came from an external source.



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# File 'lib/uuidify/uuidify_concern.rb', line 62

def uuid= new_uuid
  abort_if_unsaved!

  uuid_value = Uuidify::Uuid.uuid_to_sql_string(new_uuid)
  
  Uuidify::Uuid.where(:model_name => self.class.to_s, :model_id => self.id).first_or_create!.update_column(:model_uuid, uuid_value)
end