[Resolved] OOP Craziness

Reformed

Does anyone know if its possible to create a class that extends a class, and within the extended class call objects of itself (private methods) and use them in the child class. Whew, that was a mouth full. Here is an example of what I mean.

class BaseClass
{
     function BaseClass() {
         //makes connection to database
     }

 function _query($quey) {
    //performs query
 }
}

//now the child class

class ChildClass extends BaseClass
{
     $obj = $this->BaseClass();
     $res = $this->_query($somequery);
}
}

I know this won't work, but is it possible to get this effect with php or should I just make my BaseClass a separate class and use it in my child class?

mrhappiness

why should this not work?

Reformed

I don't know. But it doesn't. Pretty strange.

mrhappiness

it even doesn't work after wrapping the code in childclass into a function?

Reformed

Handn't thought of that. I'll give it a shot.

Reformed

It actually is in a child class function. Man, it really seems like it should be working.

Reformed

Here's what I've got:

class UserDBServices extends QueryServices 
{

function authenticate($userName, $userPass) {

    $query = ("SELECT user_id, username, password, AccountName, security_level, security_desc, banned 
    FROM user_login, lu_user_security 
    WHERE user_login.security_level = lu_user_security.security_id 
    AND user_login.username = '$userName' 
    AND user_login.password = '$userPass'");

    $dbObj =  $this->QueryServices(); //this is the constructor for the base class. it is a database connection
    $resObj = $this->dbObj->_allQuery($query);

	//create a new User object uponsuccessful login
	if(!$this->result[0][0] == null) {
	    $this->user = new UserBO();
	    $this->user->setId($this->result[0][0]);
	    $this->user->setFirstName($this->result[0][3]);
	    $this->user->setSecLevel($this->result[0][4]);
	    $this->user->setSecDesc($this->result[0][5]);

	    $this->userView = serialize($this->user);
	    $_SESSION['userView'] = $this->userView;
	}else{
	    $_SESSION['loginError'] = 'loginError';
	    header('location:'.LOGIN_FORM_VIEW);
	}
}
}

I'm not sure if can use the 'new' keyword inside the class or not.

Weedpacket

Does UserDBServices have a constructor? Does it call its parent class's constructor (if it needs to)?

class QueryServices
{
function QueryServices()
{
 // blah
}
//...
}


class UserDBServices extends QueryServices
{

function UserDBServices()
{
  parent::QueryServices();
  // more blah
}
//...
}

Reformed

I made it work by doing away with the constructor alltogether and putting the connection in the query method and it works famously.

I think the problem was having the connection in the constructor of the parent class (which is an idea that I was not in love with). So I removed it and I got what I was after. Thanks for all the help.