Neos\Neos\Routing\FrontendNodeRoutePartHandler::getUriSegmentForDimensions PHP Method

    protected function getUriSegmentForDimensions(array $dimensionsValues, $currentNodeIsSiteNode)
    {
        $uriSegment = '';
        $allDimensionPresetsAreDefault = true;
        foreach ($this->contentDimensionPresetSource->getAllPresets() as $dimensionName => $dimensionPresets) {
            $preset = null;
            if (isset($dimensionsValues[$dimensionName])) {
                $preset = $this->contentDimensionPresetSource->findPresetByDimensionValues($dimensionName, $dimensionsValues[$dimensionName]);
            }
            $defaultPreset = $this->contentDimensionPresetSource->getDefaultPreset($dimensionName);
            if ($preset === null) {
                $preset = $defaultPreset;
            }
            if ($preset !== $defaultPreset) {
                $allDimensionPresetsAreDefault = false;
            }
            if (!isset($preset['uriSegment'])) {
                throw new \Exception(sprintf('No "uriSegment" configured for content dimension preset "%s" for dimension "%s". Please check the content dimension configuration in Settings.yaml', $preset['identifier'], $dimensionName), 1395824520);
            }
            $uriSegment .= $preset['uriSegment'] . '_';
        }
        if ($allDimensionPresetsAreDefault && $currentNodeIsSiteNode) {
            return '/';
        } else {
            return ltrim(trim($uriSegment, '_') . '/', '/');
        }
    }