private function extractSpaceId(array $data): string
    {
        // Space resource
        if (isset($data['sys']['type']) && 'Space' === $data['sys']['type']) {
            return $data['sys']['id'];
        }

        // Environment resource
        if (isset($data['sys']['type']) && 'Environment' === $data['sys']['type']) {
            return $this->spaceId;
        }

        // Resource linked to a space
        if (isset($data['sys']['space'])) {
            return $data['sys']['space']['sys']['id'];
        }

        // Array resource with at least an element
        if (isset($data['items'][0]['sys']['space'])) {
            return $data['items'][0]['sys']['space']['sys']['id'];
        }

        // Empty array resource
        if (isset($data['items']) && !$data['items']) {
            return $this->spaceId;
        }

        return '[blank]';
    }
private function extractSpaceId(array $data): string
    {
        // Space resource
        if (isset($data['sys']['type']) && 'Space' === $data['sys']['type']) {
            return $data['sys']['id'];
        }

        // Environment resource
        if (isset($data['sys']['type']) && 'Environment' === $data['sys']['type']) {
            return $this->spaceId;
        }

        // Resource linked to a space
        if (isset($data['sys']['space'])) {
            return $data['sys']['space']['sys']['id'];
        }

        // Array resource with at least an element
        if (isset($data['items'][0]['sys']['space'])) {
            return $data['items'][0]['sys']['space']['sys']['id'];
        }

        // Empty array resource
        if (isset($data['items']) && !$data['items']) {
            return $this->spaceId;
        }

        return '[blank]';
    }
private function extractSpaceId ( array $ data ) : string { // Space resource if ( isset ( $ data [ 'sys' ] [ 'type' ] ) && 'Space' === $ data [ 'sys' ] [ 'type' ] ) { return $ data [ 'sys' ] [ 'id' ] ; } // Environment resource if ( isset ( $ data [ 'sys' ] [ 'type' ] ) && 'Environment' === $ data [ 'sys' ] [ 'type' ] ) { return $ this -> spaceId ; } // Resource linked to a space if ( isset ( $ data [ 'sys' ] [ 'space' ] ) ) { return $ data [ 'sys' ] [ 'space' ] [ 'sys' ] [ 'id' ] ; } // Array resource with at least an element if ( isset ( $ data [ 'items' ] [ 0 ] [ 'sys' ] [ 'space' ] ) ) { return $ data [ 'items' ] [ 0 ] [ 'sys' ] [ 'space' ] [ 'sys' ] [ 'id' ] ; } // Empty array resource if ( isset ( $ data [ 'items' ] ) && ! $ data [ 'items' ] ) { return $ this -> spaceId ; } return '[blank]' ; }
Checks a data structure and extracts the space ID, if present.

@param array $data

@return string
Checks a data structure and extracts the space ID if present .