DuplicateManager::parseScopeOption

static function parseScopeOption($options)
{
	$scope = DuplicateIndexType::DEFAULT_SCOPE;
	if (is_array($options))
	{
		if (isset($options['SCOPE']))
		{
			if(!DuplicateIndexType::checkScopeValue($options['SCOPE']))
			{
				throw new Main\ArgumentException("Option has invalid value", 'SCOPE');
			}

			$scope = $options['SCOPE'];
		}
	}

	return $scope;
}