src/Marshaler/DynamoDb/ItemMarshaler.php
public function marshal(Message $message)
    {
        $schema = $message::schema();
        $message->validate();

        $payload = [];

        foreach ($schema->getFields() as $field) {
            $fieldName = $field->getName();

            if (!$message->has($fieldName)) {
                /*
                if ($message->hasClearedField($fieldName)) {
                    $payload[$fieldName] = ['NULL' => true];
                }
                */
                continue;
            }

            $value = $message->get($fieldName);

            switch ($field->getRule()->getValue()) {
                case FieldRule::A_SINGLE_VALUE:
                    $payload[$fieldName] = $this->encodeValue($value, $field);
                    break;

                case FieldRule::A_SET:
                    $payload[$fieldName] = $this->encodeASetValue($value, $field);
                    break;

                case FieldRule::A_LIST:
                    $list = [];
                    foreach ($value as $v) {
                        $list[] = $this->encodeValue($v, $field);
                    }
                    $payload[$fieldName] = ['L' => $list];
                    break;

                case FieldRule::A_MAP:
                    $map = [];
                    foreach ($value as $k => $v) {
                        $map[$k] = $this->encodeValue($v, $field);
                    }
                    $payload[$fieldName] = ['M' => $map];
                    break;

                default:
                    break;
            }
        }

        return $payload;
    }
public function marshal(Message $message)
    {
        $schema = $message::schema();
        $message->validate();

        $payload = [];

        foreach ($schema->getFields() as $field) {
            $fieldName = $field->getName();

            if (!$message->has($fieldName)) {
                /*
                if ($message->hasClearedField($fieldName)) {
                    $payload[$fieldName] = ['NULL' => true];
                }
                */
                continue;
            }

            $value = $message->get($fieldName);

            switch ($field->getRule()->getValue()) {
                case FieldRule::A_SINGLE_VALUE:
                    $payload[$fieldName] = $this->encodeValue($value, $field);
                    break;

                case FieldRule::A_SET:
                    $payload[$fieldName] = $this->encodeASetValue($value, $field);
                    break;

                case FieldRule::A_LIST:
                    $list = [];
                    foreach ($value as $v) {
                        $list[] = $this->encodeValue($v, $field);
                    }
                    $payload[$fieldName] = ['L' => $list];
                    break;

                case FieldRule::A_MAP:
                    $map = [];
                    foreach ($value as $k => $v) {
                        $map[$k] = $this->encodeValue($v, $field);
                    }
                    $payload[$fieldName] = ['M' => $map];
                    break;

                default:
                    break;
            }
        }

        return $payload;
    }
@param Message $message

@return array

@throws \Exception
@throws GdbotsPbjException