tarantool-php / mapper

        $required = $this->getRequiredProperties();

        foreach ($this->getProperties() as $index => $field) {

            if (in_array($field, $required) && !array_key_exists($index, $tuple)) {

                $propertyType = $this->getPropertyType($field);

                $tuple[$index] = $this->convention->getDefaultValue($propertyType);

            }

        }

        // normalize tuple

        foreach ($this->getProperties() as $index => $name) {

            if (array_key_exists($name, $input)) {

                $output[$index] = $this->encodeProperty($name, $input[$name]);

                if (is_null($output[$index]) && in_array($name, $this->getRequiredProperties())) {

                    $propertyType = $this->getPropertyType($name);

                    $output[$index] = $this->convention->getDefaultValue($propertyType);

                }

            }

        }