lib/DocumentMapper/NativeDocumentMapper.php
private function getContentFields(Content $content)
    {
        $fields = [];

        if ($this->contentFieldMapper->accept($content)) {
            $fields = $this->contentFieldMapper->mapFields($content);
        }

        return $fields;
    }
private function getContentFields(Content $content)
    {
        $fields = [];

        if ($this->contentFieldMapper->accept($content)) {
            $fields = $this->contentFieldMapper->mapFields($content);
        }

        return $fields;
    }
Returns an array of fields for the given $content, to be added to the corresponding
Content document.

@param \eZ\Publish\SPI\Persistence\Content $content

@return \eZ\Publish\SPI\Search\Field[]