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Hallo, ich habe einen anfang für ein Warenkorbsystem geschrieben.
Nur, ich habe da so meine schwierigkeiten, da ich glaube, dass ich mit meinen Scripten Vererbungs-Wildwuchs betreibe...
Könnt Ihr mir Tips geben, wie ich mein Vorhaben verbessern kann?
Ich poste hier einfach mal kompletten Code, damit man sich auch eine Vorstellung machen kann, wie in etwa der Aufbau ist.
/// WARENKORB
/// class_customer.php
Viele Grüsse
David
Nur, ich habe da so meine schwierigkeiten, da ich glaube, dass ich mit meinen Scripten Vererbungs-Wildwuchs betreibe...
Könnt Ihr mir Tips geben, wie ich mein Vorhaben verbessern kann?
Ich poste hier einfach mal kompletten Code, damit man sich auch eine Vorstellung machen kann, wie in etwa der Aufbau ist.
/// WARENKORB
PHP-Code:
<?php
include("./classes/class_sessions.php");
include("./classes/class_customer.php");
include("./classes/settings.php");
$language_error = $_SETTINGS['LANGUAGE'].'_err.php';
//include("./classes/languages/$language_error");
/************************************************************************
* Class Name: cart
* Extensions: [CLASS_CUSTOMER]
* Functions: add_to_cart, remove_from_cart
*
************************************************************************/
class cart extends customer{
var $customer_id;
var $category;
var $key;
var $data;
var $value;
var $piece;
var $_SHOP = array();
var $temp_value;
var $_temp_array = array();
/************************************************************************
* Function Name: add_to_cart()
* Input: $data ->
* contains: $_GET VALUES
* Subfunctions: add_cart_to_db() [CLASS_CUSTOMER]
* Output: -
************************************************************************/
function add_to_cart($data){
global $_SHOP;
$this->_SHOP = $_SHOP;
$this->data = $data;
if(!is_numeric($this->data['amount'])){
return false;
}
$counter = $_SESSION['art_count']+1;
settype ($counter, "integer");
$this->_temp_array = $_SESSION;
$this->key = $_REQUEST['key'];
if($this->key != ""){
$this->value = $_SESSION['id'][$this->key];
$this->piece = explode("=>",$this->value);
if($this->data['sec'] == "remove"){
$this->temp_value = $this->piece[1]-$this->data['amount'];
$_SESSION['id'][$this->key] = $this->piece[0]."=>".$this->temp_value;
}
elseif($this->data['sec'] != "remove"){
$this->temp_value = $this->piece[1]+$this->data['amount'];
$_SESSION['id'][$this->key] = $this->piece[0]."=>".$this->temp_value;
}
$search_count = 1;
customer::update_cart($this->data['id'],$this->data['amount']);
}
if($search_count != 1){
if($this->_SHOP['DATABASE'] == 1){
customer::add_cart_to_db($this->data);
$_SESSION['art_count']++;
if(count($_SESSION['id']) != $_SESSION['art_count']){
$i = @max(array_keys($_SESSION['id']))+1;
if(@array_key_exists($i, $_SESSION['id'])){
$i = @max(array_keys($_SESSION['id']))+2;
}
}
else{
$i = $_SESSION['art_count'];
}
$_SESSION['id'][$i] = $this->data['id']."=>".$this->data['amount'];
$_SESSION['art_count'] = count($_SESSION['id']);
}
}
}
/************************************************************************
* Function Name: remove_from_cart()
* Input: $key ->
* contains: $_GET VALUES
* Subfunctions: remove_cart_from_db() [CLASS_CUSTOMER]
* Output: -
************************************************************************/
function remove_from_cart($key){
global $_SHOP;
$this->_SHOP = $_SHOP;
$this->key = $key;
$this->temp_value = $_SESSION['id'][$this->key];
$this->art_no = explode("=>",$this->temp_value);
if($this->key == "" ||
!array_key_exists($key, $_SESSION['id'])){
return false;
}
if($this->_SHOP['DATABASE'] == 1){
customer::remove_cart_from_db($key);
if($this->key > 0){
unset($_SESSION['id'][$this->key]);
$_SESSION['art_count'] = $_SESSION['art_count']-1;
return true;
}
else{
return false;
}
}
}
}
?>
PHP-Code:
<?php
include("./classes/class_db.php");
include("./classes/settings.php");
class customer extends _database{
var $id;
var $amount;
var $sessid;
var $_query;
var $query;
var $_update = array();
var $sysmess;
/************************************************************************
* Function Name: add_cart_to_db()
* Input: $data ->
* contains: product_id,amount
* Output: -
************************************************************************/
function add_cart_to_db($data){
global $_hostname;
global $_username;
global $_password;
global $_conntype;
global $_dbname;
global $_SETTINGS;
$this->id = $data['id'];
$this->amount = $data['amount'];
$this->sessid = session_id();
$this->_update = $_update;
$this->customer_id = $_SESSION['customer_id'];
if($this->customer_id == ""){
$_SESSION['customer'] = "guest";
}
_database::_connect($_hostname,$_username,$_password,$_conntype,$_dbname);
if(!is_resource($this->connid)){
return false;
die;
}
$this->_query = "INSERT INTO pro (id,art_nr,anzahl,sessid)
VALUES
('','$this->id','$this->amount','$this->sessid')";
$this->query = _database::query($this->_query,$this->_conntype,$this->connid);
if($_SETTINGS['CART_INSERT_STAT'] == 1){
$sysmess .= "INSERT CART STAT";
}
$this->sysmess = $sysmess;
}
/************************************************************************
* Function Name: remove_from_cart()
* Input: $key ->
* contains: $_GET VALUES
* Subfunctions: remove_cart_from_db() [CLASS_CUSTOMER]
* remove_cart_from_file()[CLASS_CUSTOMER]
* Output: -
************************************************************************/
function remove_cart_from_db($key){
global $_hostname;
global $_username;
global $_password;
global $_conntype;
global $_dbname;
global $_SETTINGS;
$this->sessid = session_id();
$art_no = $this->art_no[0];
$art_count = $this->art_no[1];
_database::_connect($_hostname,$_username,$_password,$_conntype,$_dbname);
if(!is_resource($this->connid)){
return false;
die;
}
$this->_query = "DELETE FROM pro WHERE sessid='$this->sessid'
AND art_nr='$art_no'
AND anzahl='$art_count'";
$this->query = _database::query($this->_query,$this->_conntype,$this->connid);
$this->_query = "OPTIMIZE TABLE pro";
$this->query = _database::query($this->_query,$this->_conntype,$this->connid);
if($_SETTINGS['CART_DEL_STAT'] == 1){
$sysmess .= "CART DEL STAT";
}
$this->sysmess = $sysmess;
}
/************************************************************************
* Function Name: update_cart()
* Input: $key ->
* contains: $_GET VALUES
* Subfunctions: remove_cart_from_db() [CLASS_CUSTOMER]
* remove_cart_from_file()[CLASS_CUSTOMER]
* Output: -
************************************************************************/
function update_cart($key,$amount){
global $_hostname;
global $_username;
global $_password;
global $_conntype;
global $_dbname;
global $_SETTINGS;
$this->sessid = session_id();
_database::_connect($_hostname,$_username,$_password,$_conntype,$_dbname);
if(!is_resource($this->connid)){
return false;
die;
}
if($amount == ""){
$amount = 1;
}
if($this->data['sec'] == "remove"){
$this->_query = "UPDATE pro SET anzahl=anzahl-'$amount' WHERE art_nr='$key' And sessid='$this->sessid'";
}
elseif($this->data['sec'] != "remove"){
$this->_query = "UPDATE pro SET anzahl=anzahl+'$amount' WHERE art_nr='$key' And sessid='$this->sessid'";
}
$this->query = _database::query($this->_query,$this->_conntype,$this->connid);
if($_SETTINGS['CART_UPDATE_STAT'] == 1){
$sysmess .= "UPDATE CART STAT";
}
$this->_query = "DELETE FROM pro WHERE anzahl<=0";
$this->query = _database::query($this->_query,$this->_conntype,$this->connid);
$this->sysmess = $sysmess;
}
}
?>
Viele Grüsse
David
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