/**
* Connect events to dispatcher
* @param EventDispatcherInterface $dispatcher
* @param object|array $connector
* <br><u>Available formats</u>:<br>
* Associative array: event to methods
* <p><pre>[{event_name} => {method_name}, ...]</pre></p>
* List of events
* <p><pre>[{event_name1}, {event_name2}, ...]</pre></p>
* Object with constants containing 'event' keyword
* <p>Search list of class constants and matches any name or value that contains 'event' keyword<br>
* If value is matched it will be trimmed from 'event' keyword otherwise raw value is used</p>
*
* @return self
*/
protected function connect(EventDispatcherInterface $eventDispatcher, $connector) : self
{
$methods = get_class_methods($this);
$methodsMap = [];
$mapper = [];
$normalizedEventName = function ($event) {
$eventName = strtr($event, '_', '');
if (($pos = mb_stripos($eventName, 'event')) !== false) {
$event = mb_substr($eventName, $pos + 5);
}
return mb_strtolower($event);
};
foreach ($methods as $method) {
$methodsMap[$method] = mb_strtolower($method);
}
if (is_object($connector) || is_string($connector)) {
$reflection = new \ReflectionClass($connector);
$constants = $reflection->getConstants();
foreach ($constants as $const => $event) {
if (($method = array_search($normalizedEventName($event), $methodsMap)) !== false || ($method = array_search($normalizedEventName($const), $methodsMap)) !== false) {
$mapper[$event][] = $method;
}
}
} elseif (is_array($connector)) {
if (ArrayHelper::isAssoc($connector)) {
foreach ($connector as $event => $method) {
$mapper[$event] = ArrayHelper::forceArray($method);
}
} else {
foreach ($connector as $event) {
if (($method = array_search($normalizedEventName($event), $methodsMap)) !== false) {
$mapper[$event][] = $method;
}
}
}
}
foreach ($mapper as $eventName => $methods) {
foreach ($methods as $method) {
$eventDispatcher->addListener($eventName, [$this, $method]);
}
}
return $this;
}
/**
* Prepare columns query part<br>
* If columns are associative array then they should be in form of: [{column_name} => {column_alias}, ...]
* @param array|string $columns
*/
protected function prepareColumnsList($columns)
{
if (is_array($columns)) {
if (ArrayHelper::isAssoc($columns)) {
array_walk($columns, function (&$v, $k) {
$v = "{$this->getDatabase()->escapeColumnName($k)} as {$v}";
});
return implode(', ', $columns);
} else {
return implode(', ', array_map([$this->getDatabase(), 'escapeColumnName'], $columns));
}
}
return $columns;
}
