Init($prefix, $special);
}
$this->Name = isset($params['name']) ? $params['name'] : '';
}
elseif ( is_string($params) ) {
if (preg_match('/([^.:]*)[.]{0,1}([^:]*):(.*)/', $params, $regs)) {
$prefix = $regs[1];
$special = $regs[2];
if ($prefix) {
$this->Init($prefix, $special);
}
$this->Name = $regs[3];
}
else {
throw new Exception('Invalid event string: "' . $params . '". Should be in "prefix[.special]:OnEvent" format');
}
}
}
if ( isset($specific_params) ) {
$this->specificParams = $specific_params;
}
}
/**
* Returns joined prefix and special if any
*
* @param bool $from_submit if true, then joins prefix & special by "_", uses "." otherwise
* @return string
* @access public
*/
public function getPrefixSpecial($from_submit = false)
{
if (!$from_submit) {
return parent::getPrefixSpecial();
}
return rtrim($this->Prefix . '_' . $this->Special, '_');
}
/**
* Sets event parameter
*
* @param string $name
* @param mixed $value
* @access public
*/
public function setEventParam($name,$value)
{
$this->specificParams[$name] = $value;
}
/**
* Returns event parameter by name (supports digging)
*
* @param string $name
* @return mixed
* @access public
*/
public function getEventParam($name)
{
$args = func_get_args();
if (count($args) > 1) {
kUtil::array_unshift_ref($args, $this->specificParams);
return call_user_func_array('getArrayValue', $args); // getArrayValue($this->specificParams, $name);
}
return array_key_exists($name, $this->specificParams) ? $this->specificParams[$name] : false;
}
/**
* Returns all event parameters
*
* @return Array
* @access public
*/
public function getEventParams()
{
return $this->specificParams;
}
/**
* Set's pseudo class that differs from
* the one specified in $Prefix
*
* @param string $appendix
* @access public
*/
public function setPseudoClass($appendix)
{
$this->pseudoClass = $this->Prefix . $appendix;
}
/**
* Performs event initialization
* Also sets pseudo class same $prefix
*
* @param string $prefix
* @param string $special
* @access public
*/
public function Init($prefix, $special)
{
$this->pseudoClass = $prefix;
parent::Init($prefix, $special);
}
/**
* Returns object used in event
*
* @param Array $params
* @return kDBBase
* @access public
*/
public function getObject(array $params = Array())
{
if ( !$this->Application->hasObject($this->prefixSpecial) ) {
$top_event = $this;
// when OnSave calls OnPreSave in first line, then this would make sure OnSave is used
while ( is_object($top_event->MasterEvent) ) {
$top_event = $top_event->MasterEvent;
}
$params['parent_event'] = $top_event;
}
return $this->Application->recallObject($this->prefixSpecial, $this->pseudoClass, $params);
}
/**
* Executes given event in context of current event
* Sub-event gets this event in "kEvent::MasterEvent" attribute.
* Sub-event execution results (status and redirect* properties) are copied back to current event.
*
* @param string $name name of callable event (optionally could contain prefix_special as well)
* @see kEvent::MasterEvent
* @todo Will overwrite master event data with called event data, which makes 'parent_event' useless in most cases
*/
public function CallSubEvent($name)
{
if ( strpos($name, ':') === false ) {
// PrefixSpecial not specified -> use from current event
$name = $this->getPrefixSpecial() . ':' . $name;
}
$child_event = new kEvent($name);
$child_event->copyFrom($this, true);
$this->Application->HandleEvent($child_event);
$this->copyFrom($child_event);
$this->specificParams = $child_event->specificParams;
}
/**
* Allows to copy data between events
*
* @param kEvent $source_event
* @param bool $inherit
* @access public
*/
public function copyFrom($source_event, $inherit = false)
{
if ( $inherit ) {
$this->MasterEvent = $source_event;
}
else {
$this->status = $source_event->status;
}
$this->redirect = $source_event->redirect;
$this->redirectParams = $source_event->redirectParams;
$this->redirectScript = $source_event->redirectScript;
$this->specificParams = $source_event->specificParams;
}
/**
* Returns all redirect parameters
*
* @return Array
* @access public
*/
public function getRedirectParams()
{
return $this->redirectParams;
}
/**
* Returns redirect parameter
*
* @param string $name
* @return mixed
* @access public
*/
public function getRedirectParam($name)
{
return array_key_exists($name, $this->redirectParams) ? $this->redirectParams[$name] : false;
}
/**
* Set's redirect param for event
*
* @param string $name
* @param string $value
* @access public
*/
public function SetRedirectParam($name, $value)
{
$this->redirectParams[$name] = $value;
}
/**
* Allows to merge passed redirect params hash with existing ones
*
* @param Array $params
* @param bool $append
* @access public
*/
public function setRedirectParams($params, $append = true)
{
if ( $append ) {
// append new parameters to parameters set before
$params = kUtil::array_merge_recursive($this->redirectParams, $params);
}
$this->redirectParams = $params;
}
/**
* Allows to tell if this event was called some how (e.g. subevent, hook) from event requested
*
* @param string $event_key event key in format [prefix[.special]:]event_name
* @return bool
* @access public
*/
public function hasAncestor($event_key)
{
if ( strpos($event_key, ':') === false ) {
$event_key = $this->getPrefixSpecial() . ':' . $event_key;
}
return $this->Application->EventManager->eventRunning($event_key);
}
/**
* Returns permission section associated with event
*
* @return string
* @access public
*/
public function getSection()
{
$perm_section = $this->getEventParam('PermSection');
if ($perm_section) {
return $perm_section;
}
// 1. get section by current top_prefix
$top_prefix = $this->getEventParam('top_prefix');
if ($top_prefix == false) {
$top_prefix = $this->Application->GetTopmostPrefix($this->Prefix, true);
$this->setEventParam('top_prefix', $top_prefix);
}
$section = $this->Application->getUnitOption($top_prefix.'.main', 'PermSection');
// 2. check if this section has perm_prefix mapping to other prefix
$sections_helper = $this->Application->recallObject('SectionsHelper');
/* @var $sections_helper kSectionsHelper */
$section_data =& $sections_helper->getSectionData($section);
if ($section_data && isset($section_data['perm_prefix']) && $section_data['perm_prefix'] != $top_prefix) {
$this->setEventParam('top_prefix', $section_data['perm_prefix']);
$section = $this->Application->getUnitOption($section_data['perm_prefix'].'.main', 'PermSection');
}
if (!$section) {
throw new Exception('Permission section not specified for prefix ' . $top_prefix . '');
}
return $section;
}
public function __toString()
{
return $this->getPrefixSpecial() . ':' . $this->Name;
}
}