public function dump($deep = 0)
{
$r = array('collection-of' => $this->_ofclass);
$ti = Model::_modelinfo($this->_ofclass);
foreach ($this as $v) {
$keys = array();
foreach ($ti['primarykey'] as $pk) {
$keys[] = sprintf('%s=%s', $pk, $v->{$pk});
}
$x = sprintf('%s(%s)', $this->_ofclass, join(',', $keys));
if ($deep) {
$r[$x] = $v->dump();
} else {
$r[$v->{$pk}] = $x;
}
}
#foreach ($this->pendingdel as $v) {
# $r["deleted-".$v->$pk] = sprintf('%s(%s=%s)', $this->_ofclass, $pk, $v->$pk);
#}
return $r;
}
