<?php


class Core_Database {

	var $_conn;
	var $_errors;

	function __construct($host, $user, $password, $database, $names = '', $params = array()) {
		$this->_conn = null;
		$this->_errors = array();
		$this->_database_name = $database;
	}

	public function getDatabaseName() {
		return $this->_database_name;
	}

	/**
	 * Wykonuje podane zapytanie i zwraca wynik mysql_query().
	 */
	function query( $query, $msg = 'Query ERROR.' ) {
		return null;
	}

	function fetch( $res ) {
		return null;
	}

	function _( $str ) {
		return $str;
	}

	function error() {
		return "#unknown";
	}

	function _set_error( $err ) {
		$this->_errors []= $err;
	}

	function get_errors() {
		return $this->_errors;
	}

	function has_errors() {
		return !empty($this->_errors);
	}

	function get_last_error() {
		return end($this->_errors);
	}

	function get_by_id( $table, $id ) {
		return null;
	}

}