public function getTitleColumnName()
    {
        // If we specified a specific fieldname or array of fieldnames as 'title'.
        if (!empty($this->contenttype['title_format'])) {
            return (array) $this->contenttype['title_format'];
        }

        // Sets the names of some 'common' names for the 'title' column.
        $names = ['title', 'name', 'caption', 'subject', 'heading'];

        // Some localised options as well
        $names = array_merge($names, ['titel', 'naam', 'onderwerp']); // NL
        $names = array_merge($names, ['nom', 'sujet']); // FR
        $names = array_merge($names, ['nombre', 'sujeto']); // ES

        foreach ($names as $name) {
            if (isset($this->values[$name])) {
                return [$name];
            }
        }

        // Otherwise, grab the first field of type 'text', and assume that's the title.
        if (!empty($this->contenttype['fields'])) {
            foreach ($this->contenttype['fields'] as $key => $field) {
                if ($field['type'] === 'text') {
                    return [$key];
                }
            }
        }

        // Nope, no title was found.
        return [];
    }