ConLite/branches/NoDemoClient/conlite/classes/class.metaobject.php
2017-06-09 09:38:57 +00:00

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<?php
/**
* Project:
* Contenido Content Management System
*
* Description:
* Contenido Base Object
*
* Requirements:
* @con_php_req 5.0
*
*
* @package Contenido Backend classes
* @version 1.0.4
* @author unknown
* @copyright four for business AG <www.4fb.de>
* @license http://www.contenido.org/license/LIZENZ.txt
* @link http://www.4fb.de
* @link http://www.contenido.org
* @since file available since contenido release <= 4.6
*
* {@internal
* created unknown
* modified 2008-06-30, Dominik Ziegler, add security fix
*
* $Id: class.metaobject.php 2 2011-07-20 12:00:48Z oldperl $:
* }}
*
*/
if(!defined('CON_FRAMEWORK')) {
die('Illegal call');
}
/* Introduction to metaobjects
*
* A metaobject is an object which combines pure API objects with presentation logic.
* An API object contains API functions for doing actions or data manipulation in general.
*
* A metaobject can define the following things:
*
* - Map data objects to widgets
* - Map data into groups
* - Map actions (from the API objects) to visible actions
* - Map data fields with flags (searchable, sortable)
*
*/
define("CMETAOBJECT_BASE", 1);
define("CMETAOBJECT_PLUGIN", 2);
class cMetaObject
{
/**
* Type of this plugin
* @var int Contains the object type
* @access private
*/
var $_objectType;
/**
* Object icon
* @var string Icon filename
* @access private
*/
var $_iconFilename;
var $_objectInvalid;
var $_payloadObject;
function cMetaObject ($payload = false)
{
$this->_actions = array();
$this->_fields = array();
$this->_objectInvalid = false;
$this->setPayloadObject($payload);
}
/**
* setObjectType ($type)
*
* Sets the object type (either COBJECT_BASE or COBJECT_PLUGIN).
*
* @param int $type Constant with the object type
*
*/
function setObjectType ($type)
{
if ($type != COBJECT_BASE &&
$type != COBJECT_PLUGIN)
{
cDie(__FILE__, __LINE__, "When calling setObjectType, please use either COBJECT_BASE or COBJECT_PLUGIN");
}
$this->_objectType = $type;
}
/**
* setIcon ($icon)
* Defines the icon for this object
* @param string $icon Icon path
* @return none
*/
function setIcon ($icon = false)
{
$icon = Contenido_Security::escapeDB($icon, null);
$this->_iconFilename = $icon;
}
/**
* getIcon ($icon)
* Returns the icon for this object
* @param string $icon Icon path
* @return none
*/
function getIcon ()
{
return $this->_iconFilename;
}
function setPayloadObject ($object)
{
if (is_object($object))
{
$this->_payloadObject = $object;
$this->defineActions();
} else {
if (class_exists($object))
{
$this->_payloadObject = new $object;
$this->defineActions();
}
}
}
function getName ()
{
return;
}
function getDescription ()
{
return;
}
function defineActions ()
{
}
function assignField ($field, $name, $editwidget, $parameters = array(), $group = "default", $readonly = false)
{
if (!array_key_exists("default", $parameters))
{
$parameters["default"] = $this->_payloadObject->get($field);
$parameters["_payload"] = $this->_payloadObject;
}
$this->_fields[$group][$field]["name"] = $name;
$this->_fields[$group][$field]["editwidget"] = $editwidget;
$this->_fields[$group][$field]["readonly"] = $readonly;
$this->_fields[$group][$field]["parameters"] = $parameters;
}
function setEditAction ($actionclass)
{
$args = func_num_args();
unset($this->_editAction);
$this->_editAction = $actionclass;
$this->_editParams = array();
for ($i=1; $i< $args; $i++)
{
$this->_editParams[$i] = func_get_arg($i);
}
}
function setCreateAction ($actionclass)
{
$args = func_num_args();
unset($this->_createAction);
$this->_createAction = $actionclass;
$this->_createParams = array();
for ($i=1; $i< $args; $i++)
{
$this->_createParams[$i] = func_get_arg($i);
}
}
function addAction ($actionclass)
{
$args = func_num_args();
$this->_actions[$actionclass] = array();
for ($i=1; $i< $args; $i++)
{
$this->_actions[$actionclass][$i] = func_get_arg($i);
}
}
function defineFields ()
{
}
function defineEditAction ()
{
}
function defineCreateAction ()
{
}
function processActions ()
{
$reload = false;
$actions = $this->getActions();
if (is_array($actions))
{
foreach ($actions as $action)
{
if ($_GET["action"] == $action->_namedAction)
{
/* Collect parameters */
foreach ($action->_wantParameters as $parameter)
{
/* Mangle parameter */
if (get_magic_quotes_gpc())
{
$parameters[$parameter] = stripslashes($_GET[$parameter]);
} else {
$parameters[$parameter] = $_GET[$parameter];
}
}
foreach ($action->_parameters as $parameter => $value)
{
if (get_magic_quotes_gpc())
{
$parameters[$parameter] = stripslashes($_GET[$parameter]);
} else {
$parameters[$parameter] = $_GET[$parameter];
}
}
if ($action->process($parameters) == true)
{
$reload = true;
}
if ($action->_objectInvalid)
{
$this->_objectInvalid = true;
}
}
}
}
return $reload;
}
function processEdit ()
{
$this->defineFields();
$modified = false;
foreach ($this->_fields as $group)
{
foreach ($group as $field => $params)
{
$vname = get_class($this)."_".$field;
if (array_key_exists($vname, $_GET))
{
if (get_magic_quotes_gpc())
{
$this->_payloadObject->set($field, stripslashes($_GET[$vname]));
} else {
$this->_payloadObject->set($field, $_GET[$vname]);
}
$modified = true;
}
}
}
if ($modified == true)
{
$this->_payloadObject->store();
}
}
function processCreate ()
{
if ($this->_actionsDefined == false)
{
$this->defineActions();
$this->_actionsDefined = true;
}
/* Get create action */
$createaction = $this->getAction($this->_createAction);
if ($createaction != false)
{
if ($_GET["action"] == $createaction->_namedAction)
{
return $createaction->process();
}
}
}
function getActions ()
{
if ($this->_actionsDefined == false)
{
$this->defineActions();
$this->_actionsDefined = true;
}
foreach ($this->_actions as $action => $params)
{
$i = $this->getAction($action);
if ($i !== false)
{
$actions[] = $i;
}
}
return ($actions);
}
function getAction ($action)
{
if (!array_key_exists($action, $this->_actions))
{
if ($this->_editAction == $action)
{
$params = $this->_editParams;
} else {
if ($this->_createAction == $action)
{
$params = $this->_createParams;
} else {
return false;
}
}
} else {
$params = $this->_actions[$action];
}
$myparams = array();
if (!is_array($params))
{
$params = array();
}
foreach ($params as $param)
{
switch (gettype($param))
{
case "string" : $myparams[] = '"'.addslashes($param).'"'; break;
case "boolean": if ($param == true)
{
$myparams[] = "true";
} else {
$myparams[] = "false";
}
break;
default: $myparams[] = $param;
}
}
$statement = '$action = new '.$action."(".implode(", ",$myparams).");";
eval($statement);
return ($action);
}
}
?>