RedBeanPHP

easy ORM for PHP

Advanced Aliasing

Aliasing is a technique that allows you to use a certain type of bean multiple times in another bean. For example you can have two different users in a page object (author and editor). Aliasing is mostly used when you assign roles to people (think of database fields like leader_id, member_id). Example: Imagine we have a collection of people, some are family others are friends. To accomplish this in RedBeanPHP use:


class Alias extends RedBean_DefaultBeanFormatter {
    public function getAlias($type) {
        if ($type=='familyman' || $type=='buddy') return 'person';
        return $type;
    }
}

R::$writer->setBeanFormatter(new Alias);

list($p1,$p2,$p3)  = R::dispense('person',3);
$p1->name = 'Joe';
$p2->name = 'Jack';
$p3->name = 'James';
$fm = R::dispense('familymember');
$fr = R::dispense('friend');
$fr->buddy = $p1;
$fm->familyman = $p2;
$p3->ownFamilymember[] = $fm;
$p3->ownFriend[] = $fr;
$id = R::store($p3);


$friend = R::load('person', $id);
echo reset($friend->ownFamilymember)->familyman->name; //Jack
echo reset($friend->ownFriend)->buddy->name; //Joe

You cannot use an Alias with R::view().

Aliasing does not work with nested collections of beans.



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