Format object view link.

def object_formatter(v, c, m, p):
    """Format object view link."""
    endpoint = current_app.config['PIDSTORE_OBJECT_ENDPOINTS'].get(
        m.object_type)

    if endpoint and m.object_uuid:
        return Markup('<a href="{0}">{1}</a>'.format(
            url_for(endpoint, id=m.object_uuid),
            _('View')))
    return ''