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58:51
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engine/classes/Elgg/EventsService.php (3 issues)

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<?php
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namespace Elgg;
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use Elgg\HooksRegistrationService\Event;
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/**
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 * Events service
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 *
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 * @tip Use ->hooks->getEvents() from the service provider.
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 *
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 * @access private
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 */
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class EventsService extends HooksRegistrationService {
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	use Profilable;
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	const OPTION_STOPPABLE = 'stoppable';
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	const OPTION_DEPRECATION_MESSAGE = 'deprecation_message';
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	const OPTION_DEPRECATION_VERSION = 'deprecation_version';
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	/**
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	 * @var HandlersService
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	 */
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	private $handlers;
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	/**
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	 * Constructor
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	 *
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	 * @param HandlersService $handlers Handlers
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	 */
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	public function __construct(HandlersService $handlers) {
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		$this->handlers = $handlers;
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	}
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	/**
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	 * Get the handlers service in use
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	 *
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	 * @return HandlersService
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	 */
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	public function getHandlersService() {
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		return $this->handlers;
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	}
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	/**
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	 * {@inheritdoc}
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	 */
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	public function registerHandler($name, $type, $callback, $priority = 500) {
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		if (in_array($type, ['member', 'friend', 'attached'])
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				&& in_array($name, ['create', 'update', 'delete'])) {
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			_elgg_services()->logger->error("'$name, $type' event is no longer triggered. "
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				. "Update your event registration to use '$name, relationship'");
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		}
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		return parent::registerHandler($name, $type, $callback, $priority);
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	}
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	/**
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	 * Triggers an Elgg event.
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	 *
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	 * @see elgg_trigger_event
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	 * @see elgg_trigger_after_event
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	 * @access private
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	 */
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	public function trigger($name, $type, $object = null, array $options = []) {
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		$options = array_merge([
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			self::OPTION_STOPPABLE => true,
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			self::OPTION_DEPRECATION_MESSAGE => '',
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			self::OPTION_DEPRECATION_VERSION => '',
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		], $options);
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		$handlers = $this->hasHandler($name, $type);
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		if ($handlers && $options[self::OPTION_DEPRECATION_MESSAGE]) {
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			_elgg_services()->deprecation->sendNotice(
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				$options[self::OPTION_DEPRECATION_MESSAGE],
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				$options[self::OPTION_DEPRECATION_VERSION],
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				2
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			);
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		}
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		$handlers = $this->getOrderedHandlers($name, $type);
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		// This starts as a string, but if a handler type-hints an object we convert it on-demand inside
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		// \Elgg\HandlersService::call and keep it alive during all handler calls. We do this because
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		// creating objects for every triggering is expensive.
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		$event = 'event';
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		/* @var Event|string */
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		foreach ($handlers as $handler) {
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			$handler_description = false;
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			if ($this->timer && $type === 'system' && $name !== 'shutdown') {
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				$handler_description = $this->handlers->describeCallable($handler) . "()";
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				$this->timer->begin(["[$name,$type]", $handler_description]);
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			}
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			list($success, $return, $event) = $this->handlers->call($handler, $event, [$name, $type, $object]);
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			if ($handler_description) {
0 ignored issues
show
Bug Best Practice introduced by Steve Clay
The expression $handler_description of type false|string is loosely compared to true; this is ambiguous if the string can be empty. You might want to explicitly use !== false instead.

In PHP, under loose comparison (like ==, or !=, or switch conditions), values of different types might be equal.

For string values, the empty string '' is a special case, in particular the following results might be unexpected:

''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
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				$this->timer->end(["[$name,$type]", $handler_description]);
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			}
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			if (!$success) {
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				continue;
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			}
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			if (!empty($options[self::OPTION_STOPPABLE]) && ($return === false)) {
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				return false;
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			}
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		}
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		return true;
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	}
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	/**
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	 * Trigger a "Before event" indicating a process is about to begin.
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	 *
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	 * Like regular events, a handler returning false will cancel the process and false
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	 * will be returned.
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	 *
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	 * To register for a before event, append ":before" to the event name when registering.
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	 *
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	 * @param string $event       The event type. The fired event type will be appended with ":before".
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	 * @param string $object_type The object type
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	 * @param string $object      The object involved in the event
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	 *
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	 * @return bool False if any handler returned false, otherwise true
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	 *
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	 * @see trigger
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	 * @see triggerAfter
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	 * @since 2.0.0
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	 */
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	function triggerBefore($event, $object_type, $object = null) {
0 ignored issues
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It is generally recommended to explicitly declare the visibility for methods.

Adding explicit visibility (private, protected, or public) is generally recommend to communicate to other developers how, and from where this method is intended to be used.

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131 1157
		return $this->trigger("$event:before", $object_type, $object);
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	}
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	/**
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	 * Trigger an "After event" indicating a process has finished.
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	 *
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	 * Unlike regular events, all the handlers will be called, their return values ignored.
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	 *
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	 * To register for an after event, append ":after" to the event name when registering.
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	 *
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	 * @param string $event       The event type. The fired event type will be appended with ":after".
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	 * @param string $object_type The object type
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	 * @param string $object      The object involved in the event
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	 *
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	 * @return true
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	 *
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	 * @see triggerBefore
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	 * @since 2.0.0
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	 */
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	public function triggerAfter($event, $object_type, $object = null) {
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		$options = [
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			self::OPTION_STOPPABLE => false,
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		];
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		return $this->trigger("$event:after", $object_type, $object, $options);
0 ignored issues
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Bug Best Practice introduced by Steve Clay
The expression return $this->trigger(En...ype, $object, $options) returns the type boolean which is incompatible with the documented return type true.
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	}
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	/**
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	 * Trigger an event normally, but send a notice about deprecated use if any handlers are registered.
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	 *
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	 * @param string $event       The event type
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	 * @param string $object_type The object type
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	 * @param string $object      The object involved in the event
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	 * @param string $message     The deprecation message
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	 * @param string $version     Human-readable *release* version: 1.9, 1.10, ...
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	 *
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	 * @return bool
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	 *
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	 * @see trigger
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	 */
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	function triggerDeprecated($event, $object_type, $object = null, $message = null, $version = null) {
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		$options = [
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			self::OPTION_DEPRECATION_MESSAGE => $message,
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			self::OPTION_DEPRECATION_VERSION => $version,
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		];
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		return $this->trigger($event, $object_type, $object, $options);
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	}
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}
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