/**
*
* @param Zupal_Domain_Abstract $pItem
*/
public function move($pItem, $pMode, $pRank, $pData = NULL)
{
$id = $pItem->identity();
if (!$pItem->isSaved()) {
throw new Exception(__METHOD__ . ': attempt to move unsaved ' . get_class($pItem));
}
if (is_null($pData)) {
$pData = $this->findAll($pRank);
}
$found = FALSE;
$out = array();
switch ($pMode) {
case self::MOVE_TOP:
$out[] = $pItem;
foreach ($pData as $item) {
if ($pItem->identity() != $item->identity()) {
$out[] = $item;
}
}
break;
case self::MOVE_UP:
foreach ($pData as $item) {
if ($found) {
$out[] = $item;
} elseif ($pItem->identity() == $item->identity()) {
if (count($out)) {
$prev = array_pop($out);
$out[] = $item;
$out[] = $prev;
} else {
$out[] = $item;
}
$found = TRUE;
} else {
$out[] = $item;
}
}
break;
case self::MOVE_DOWN:
$just_saved = FALSE;
foreach ($pData as $item) {
if ($found) {
$out[] = $item;
if ($just_saved) {
$out[] = $pItem;
$just_saved = FALSE;
}
} elseif ($pItem->identity() == $item->identity()) {
$found = TRUE;
$just_saved = TRUE;
}
}
break;
case self::MOVE_BOTTOM:
foreach ($pData as $item) {
if ($pItem->identity() != $item->identity()) {
$out[] = $item;
}
}
$out[] = $pItem;
break;
default:
throw new Exception(__METHOD__ . ': attempt to sort with unknown mode ' . $pMode);
}
foreach ($out as $k => $item) {
$item->{$pRank} = $k;
$item->save();
}
}
