streams/Zotlabs/Update/_1156.php

<?php

namespace Zotlabs\Update;

class _1156
{
    public function run()
    {
        $r1 = q("ALTER TABLE mail ADD conv_guid CHAR( 255 ) NOT NULL DEFAULT '' ");
        $r2 = q("create index conv_guid on mail ( conv_guid ) ");

        $r3 = q("select mail.id, mail.convid, conv.guid from mail left join conv on mail.convid = conv.id where true");
        if ($r3) {
            foreach ($r3 as $rr) {
                if ($rr['convid']) {
                    q(
                        "update mail set conv_guid = '%s' where id = %d",
                        dbesc($rr['guid']),
                        intval($rr['id'])
                    );
                }
            }
        }

        if ($r1 && $r2) {
            return UPDATE_SUCCESS;
        }
        return UPDATE_FAILED;
    }
}