PHP god object

GodObjectDemo.php

<?php


class Database {

	function queryOne( ... $x ) {
		//  Real object would prepare bound SQL and look up in the database.
		return "blue";
	}

}


class GenericRow {


	function __construct( GenericTable $table, $key ) {
		$this->table = $table;
		$this->key = $key;
	}

	function get( $field ) {
		return $this->table->getField( $this->key, $field );
	}

}


class HouseRow extends GenericRow {

	function getColor() {
		return parent::get( "color" );
	}

	function setColor( $color ) {
		parent::set( "color", $color );
	}

}


class GenericTable {

	function __construct( $database, $table_name, $key_name ) {
		$this->database = $database;
		$this->table_name = $table_name;
		$this->key_name = $key_name;
	}

	function getField( $key, $field ) {
		return $this->database->queryOne(
			"SELECT % FROM {$this->table_name} WHERE {$key_name} = %",
			$field, $key
		);
	}


}


class HouseTable extends GenericTable {

	function __construct ( $god ) { 
		parent::__construct( $god->getDatabase(), "Houses", "pkHouse" );
		$this->god = $god;
	}

	function getObj( $key ) {
		return new HouseRow( $this, $key );
	}

}


class GodObject {

	function __construct( $database ) {
		$this->database = $database;
	}

	function getDatabase() {
		return $this->database;
	}

	function getHouseTable() {
		return new HouseTable( $this );
	}

	function getSessionData( $name ) {
		//  Would come from $_GET or something.	
		return 1;
	}

}


abstract class WebPage {

	function __construct() {
		$this->database = new Database( "connection_info" );
		$this->god = new GodObject( $this->database );
	}

	abstract function render();

}
	

class ViewHouseColorPage extends WebPage {

	function render() {
		$house_id = $this->god->getSessionData( 'house_id' );
		$house_table = $this->god->getHouseTable();
		$house = $house_table->getObj( $house_id );
		echo "<p>Your house color is ", $house->getColor(), ".</p>";
	}

}


$page = new ViewHouseColorPage;
$page->render();