protected function determineAttributeValue($attribute_name)
{
$value = '';
if ($this->hasOption('value')) {
return $this->getOption('value');
}
$value_path = $this->getOption('attribute_value_path');
if (!empty($value_path)) {
$value = AttributeValuePath::getAttributeValueByPath($this->getPayload('resource'), $value_path);
} else {
$value = $this->getPayload('resource')->getValue($attribute_name);
}
// @todo introduce nested rendering or smarter mechanisms or error message for resources and other known types?
if (is_object($value)) {
if ($value instanceof DateTimeInterface) {
$value = $value->format(TimestampAttribute::FORMAT_ISO8601);
} elseif (!$value instanceof ComplexValueInterface) {
$value = sprintf('Attribute "%s" (type "%s") – value of type object (%s): %s', $attribute_name, get_class($this->attribute), get_class($value), StringToolkit::getObjectAsString($value));
} else {
// it's a complex value so we should not convert the object to string or similar
// the specific renderer for that attribute might want to use the actual object
}
} elseif (is_array($value)) {
$value = sprintf('Attribute "%s" – value of type array with keys: %s', $attribute_name, print_r(array_keys($value), true));
} else {
// $value = StringToolkit::getAsString($value);
}
return $value;
}
