Value Object

[vccarvalho]

Hi there. I'm trying to implement something that should work like a VO design pattern. So I created 2 classes, one for the VO itself, and other that's gonna use this object by composition: here'r my codes :

class boxVO{
var $descricao;
var $parentID;
var $ID;

function boxVO(){
    $this->parentID = $this->setParentID(0);
    $this->descricao = $this->setDescricao("");
    $this->ID = $this->setID(0);

}

function getDescricao(){
    return $this->descricao;
}

function getID(){
    return $this->ID;
}

function getParentID(){
    return $this->parentID;
}

function setDescricao($desc){
    $this->descricao = $desc;
}

function setParentID($PID){
    $this->parentID = $PID;
}

function setID($ID) {
    $this->ID = $ID;
}

}

class boxCollection {
var $database;
var $PID;
var $collection = array();

function boxCollection($db,$PID){
    $this->database = $db;
    $this->PID = $PID;
    $this->populate();
}

function populate(){
    $query = sprintf("SELECT no, descricao, parentField FROM %s.crmHistory WHERE parentField = %d",
    $this->database,$this->PID);
    $rs = mysql_query($query);
    $i = 0;
    while($row = mysql_fetch_object($rs)){
        $collection[$i] = new boxVO();
        $collection[$i]->setID($row->no);
        $collection[$i]->setParentID($row->parentField);
        $collection[$i]->setDescricao($row->descricao);
        $i++;
    }
}

}

Well, so far so good it seems that the collection array contains objects of VO type right?

But when I try to :
$box = new boxCollection("sqldados",1);

and then $box->collection[0]->getID();
it returns an error:
Fatal error: Call to a member function on a non-object in /home/vinicius/html/php/webcrm/testeBox.php on line 80

wha intrigates me, is that when calling the set methods it did not complain.
any ideas?

Thanks

[vccarvalho]

DUH!
Sorry, sorry, sometimes the easiest bug is the hardest to find.
I was using $collection instead of $this->collection;

😃

sorry