Module: Uuidable::ActiveRecord::ClassMethods

Includes:
Finder
Defined in:
lib/uuidable/active_record.rb

Overview

ClassMethods

Instance Method Summary collapse

Methods included from Finder

#find

Instance Method Details

#uuidable(as_param: true) ⇒ Object

rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity



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# File 'lib/uuidable/active_record.rb', line 24

def uuidable(as_param: true) # rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity
  # Configure all uuid columns for MySQL. Database may not be connected (i.e. on assets precompile), so we must supress errors.
  conn_config = respond_to?(:connection_db_config) ? connection_db_config.configuration_hash : connection_config

  if conn_config[:adapter].include?('mysql') && connection.data_source_exists?(table_name)
    begin
      columns.select { |c| c.type == :binary && c.limit == 16 && c.name.include?('uuid') }.each do |column|
        attribute column.name.to_sym, MySQLBinUUID::Type.new
      end

      include V1ModelMigration if columns.any? { |c| c.name.include?(V1MigrationHelpers::OLD_POSTFIX) }
    rescue ::ActiveRecord::ConnectionNotEstablished, Mysql2::Error::ConnectionError, ::ActiveRecord::NoDatabaseError # rubocop:disable Lint/SuppressedException
    end
  end

  after_initialize do
    self.uuid = Uuidable.generate_uuid if attributes.keys.include?('uuid') && uuid.blank?
  end

  validates :uuid, presence: true, uniqueness: true, if: -> { try :uuid_changed? }

  if as_param
    define_method :to_param do
      uuid
    end
  end

  define_method :uuid= do |val|
    raise UuidChangeError, 'Uuid changing is bad idea!' unless new_record? || uuid.blank? || uuid == val

    super(val)
  end
end