OOP czy dobrze go stosuję ? Opcje

[Fanatyko]

Witam, wiem że w tym dziale jest już świeży temat o stosowaniu OOP, jednak chciałbym aby ktoś zweryfikował mój kod czy to co robię jest zgodne z założeniem OOP.

Jest to przykładowy game framework, dla treningu. Mam w nim 4 klasy User, UserManager, Character, CharacterManager, oto one :

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<?php class User {
 
    function __construct() {
 
    }
 
    private $_login = null;
    private $_password = null;
    private $_email = null;
    private $_id = null;
    private $_logged = null;
 
 //  tutaj dalej sa standardowe settery i gettery
 
} ?>
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<?php
class UserManager {
 
    function __construct($user) {
        $this->_user = $user;
 
        try{
        $this->_pdo = new PDO('mysql:host=localhost;dbname=rsfc;', '', '');
        $this->_pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
        }catch(PDOException $error){
            echo 'Problem z baza :( :' . $error->getMessage();
        }
    }
 
    private $_user;
 
    public function Logon(){
 
        $db = $this->_pdo->prepare('SELECT * FROM user_account WHERE login = :login AND password = :password');
        $db->execute(array(':login' => $this->_user->getLogin(), ':password' => $this->_user->getPassword()));
 
        try{
 
             if($user = $db->fetch()){
                 echo "Zostales zalogowany";
                 $this->_user->setId($user[id]);
                 $this->_user->setLogged(1);
                 $this->_user->setSession();
             }
 
                else{
                        throw new Exception("Nie ma Cie w bazie ! Nie zostales zalogowany :(");
                    }
 
        }catch(Exception $error){
            echo $error->getMessage();
        }      
 
    }
 
 
}
 
?>
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<?php
class Character {
 
    function __construct() {
 
    }
 
    private $_strenght;
    private $_speed;
    private $_dynamic;
    private $_condition;
    private $_pain;
    private $_endurance;
    private $_iq;
    private $_coordination;
    private $_technic;
    private $_flex;
    private $_life;
    private $_level;
    private $_experince;
    private $_needexperince;
    private $_money;
    private $_reputation;
    private $_movepoints;
 
    private $_id = null;
 
    //settery
 
    // tutaj tez standardowe settey i gettery
 
 
}
 
?>
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<?php
class CharacterManager {
 
    function __construct($character) {
        $this->_character = $character;
 
        try{
        $this->_pdo = new PDO('mysql:host=localhost;dbname=rsfc;', '', '');
        $this->_pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
        }catch(PDOException $error){
            echo 'Problem z baza :( :' . $error->getMessage();
        }
 
 
    }
 
 
 
    private $_character;
    private $_pdo;
 
    public function render(){
        include './views/character.php';
    }
 
    public function upgradeStatistic($statistic, $how_much){
 
 
            $db = $this->_pdo->prepare('UPDATE user_character SET '.$statistic.' = '.$statistic.' + :how_much WHERE id = :id');
            $db->execute(array(':how_much' => $how_much, ':id' => $this->_character->getIdFromSession()));
 
    }
 
    public function downgradeStatistic($statistic, $how_much){
 
 
            $db = $this->_pdo->prepare('UPDATE user_character SET '.$statistic.' = '.$statistic.' - :how_much WHERE id = :id');
            $db->execute(array(':how_much' => $how_much, ':id' => $this->_character->getIdFromSession()));
 
    }
 
    public function setStatistics(){
        try{
 
            $db = $this->_pdo->prepare('SELECT * FROM user_character WHERE id = :id');
            $db->execute(array(':id' => $this->_character->getIdFromSession()));
 
            if($character = $db->fetch()){
                $this->_character->setCondition($character['condition']);
                $this->_character->setCoordination($character['coordination']);
                $this->_character->setDynamic($character['dynamic']);
                $this->_character->setEndurance($character['endurance']);
                $this->_character->setExperince($character['experince']);
                $this->_character->setFlex($character['flex']);
                $this->_character->setIq($character['iq']);
                $this->_character->setLevel($character['level']);
                $this->_character->setLife($character['life']);
                $this->_character->setMoney($character['money']);
                $this->_character->setMovePoints($character['move_points']);
                $this->_character->setNeedExperince($character['needexperince']);
                $this->_character->setPain($character['pain']);
                $this->_character->setReputation($character['reputation']);
                $this->_character->setSpeed($character['speed']);
                $this->_character->setStrenght($character['strenght']);
                $this->_character->setTechnic($character['technic']);
 
            }else{
                throw new Exception('Nie moge uaktualnic statystyk :(');
            }         
            }
            catch(Exception $error){
                echo 'Wystapil blad:' . $error->getMessage();
            }
        }
 
}
?>
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Index.php

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<?php
session_start();
 
require 'class/Character.php';
require 'class/CharacterManager.php';
require 'class/User.php';
require 'class/UserManager.php';
 
$User = new User;
$User->setLogin('');
$User->setPassword(md5(''));
 
$UserManager = new UserManager($User);
$UserManager->Logon();
 
try{
    if($User->getLogged() == 1){
 
        $Character = new Character;
        $Character->setIdFromSession();
        $CharacterManager = new CharacterManager($Character);
        $CharacterManager->upgradeStatistic('strenght', 5);
        $CharacterManager->setStatistics();
        echo $Character->getStrenght();
    }else{
        throw new Exception('Nie jestes zalogowany !');
    }
 
 
}catch(Exception $error){
    echo 'Wystapil blad:'.$error->getMessage();
 
}
 
 
 
?>
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Pytania:

1. Głowne - czy ten kod jest zgodny z OOP ?
2. Czy metoda Logon() powinna być w klasie UserManager czy w osobnej np. Login
3. Czy tworzenie obiektu User a potem przekazywanie go do UserManager w celu obróbki itp jest prawidłowe ? Czy w klasie UserManager powinna być metoda tworząca obiekt User ? (to tyczy się również klas Character i CharacterManager)

Proszę o wytknięcie mi błedów i sposobów w jaki mogę je poprawić (IMG:style_emoticons/default/wink.gif)