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<?php
namespace Action;
use Core\Listener;
use Core\Registry;
use Core\Tool;
/**
* Base class for automatic actions
*
* @package action
* @author Frederic Guillot
*
* @property \Model\Acl $acl
* @property \Model\Task $task
*/
abstract class Base implements Listener
{
/**
* Project id
*
* @access private
* @var integer
*/
private $project_id = 0;
/**
* User parameters
*
* @access private
* @var array
*/
private $params = array();
/**
* Attached event name
*
* @access protected
* @var string
*/
protected $event_name = '';
/**
* Registry instance
*
* @access protected
* @var \Core\Registry
*/
protected $registry;
/**
* Execute the action
*
* @abstract
* @access public
* @param array $data Event data dictionary
* @return bool True if the action was executed or false when not executed
*/
abstract public function doAction(array $data);
/**
* Get the required parameter for the action (defined by the user)
*
* @abstract
* @access public
* @return array
*/
abstract public function getActionRequiredParameters();
/**
* Get the required parameter for the event (check if for the event data)
*
* @abstract
* @access public
* @return array
*/
abstract public function getEventRequiredParameters();
/**
* Get the compatible events
*
* @abstract
* @access public
* @return array
*/
abstract public function getCompatibleEvents();
/**
* Check if the event data meet the action condition
*
* @access public
* @param array $data Event data dictionary
* @return bool
*/
abstract public function hasRequiredCondition(array $data);
/**
* Constructor
*
* @access public
* @param \Core\Registry $registry Regsitry instance
* @param integer $project_id Project id
* @param string $event_name Attached event name
*/
public function __construct(Registry $registry, $project_id, $event_name)
{
$this->registry = $registry;
$this->project_id = $project_id;
$this->event_name = $event_name;
}
/**
* Return class information
*
* @access public
* @return string
*/
public function __toString()
{
return get_called_class();
}
/**
* Load automatically models
*
* @access public
* @param string $name Model name
* @return mixed
*/
public function __get($name)
{
return Tool::loadModel($this->registry, $name);
}
/**
* Set an user defined parameter
*
* @access public
* @param string $name Parameter name
* @param mixed $value Value
*/
public function setParam($name, $value)
{
$this->params[$name] = $value;
}
/**
* Get an user defined parameter
*
* @access public
* @param string $name Parameter name
* @param mixed $default_value Default value
* @return mixed
*/
public function getParam($name, $default_value = null)
{
return isset($this->params[$name]) ? $this->params[$name] : $default_value;
}
/**
* Check if an action is executable (right project and required parameters)
*
* @access public
* @param array $data Event data dictionary
* @return bool True if the action is executable
*/
public function isExecutable(array $data)
{
return $this->hasCompatibleEvent() &&
$this->hasRequiredProject($data) &&
$this->hasRequiredParameters($data) &&
$this->hasRequiredCondition($data);
}
/**
* Check if the event is compatible with the action
*
* @access public
* @param array $data Event data dictionary
* @return bool
*/
public function hasCompatibleEvent()
{
return in_array($this->event_name, $this->getCompatibleEvents());
}
/**
* Check if the event data has the required project
*
* @access public
* @param array $data Event data dictionary
* @return bool
*/
public function hasRequiredProject(array $data)
{
return isset($data['project_id']) && $data['project_id'] == $this->project_id;
}
/**
* Check if the event data has required parameters to execute the action
*
* @access public
* @param array $data Event data dictionary
* @return bool True if all keys are there
*/
public function hasRequiredParameters(array $data)
{
foreach ($this->getEventRequiredParameters() as $parameter) {
if (! isset($data[$parameter])) {
return false;
}
}
return true;
}
/**
* Execute the action
*
* @access public
* @param array $data Event data dictionary
* @return bool True if the action was executed or false when not executed
*/
public function execute(array $data)
{
if ($this->isExecutable($data)) {
return $this->doAction($data);
}
return false;
}
}
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