1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
<?php namespace FluentMail\App\Services\DB;
use FluentMail\App\Services\DB\QueryBuilder\QueryBuilderHandler;
use FluentMail\App\Services\DB\QueryBuilder\Raw;
class EventHandler
{
/**
* @var array
*/
protected $events = array();
/**
* @var array
*/
protected $firedEvents = array();
/**
* @return array
*/
public function getEvents()
{
return $this->events;
}
/**
* @param $event
* @param $table
*
* @return callable|null
*/
public function getEvent($event, $table = ':any')
{
if ($table instanceof Raw) {
return null;
}
return isset($this->events[$table][$event]) ? $this->events[$table][$event] : null;
}
/**
* @param $event
* @param string $table
* @param callable $action
*
* @return void
*/
public function registerEvent($event, $table, \Closure $action)
{
$table = $table ?: ':any';
$this->events[$table][$event] = $action;
}
/**
* @param $event
* @param string $table
*
* @return void
*/
public function removeEvent($event, $table = ':any')
{
unset($this->events[$table][$event]);
}
/**
* @param \FluentMail\App\Services\DB\src\QueryBuilder\QueryBuilderHandler $queryBuilder
* @param $event
* @return mixed
*/
public function fireEvents($queryBuilder, $event)
{
$originalArgs = func_get_args();
$statements = $queryBuilder->getStatements();
$tables = isset($statements['tables']) ? $statements['tables'] : array();
// Events added with :any will be fired in case of any table,
// we are adding :any as a fake table at the beginning.
array_unshift($tables, ':any');
// Fire all events
foreach ($tables as $table) {
// Fire before events for :any table
if ($action = $this->getEvent($event, $table)) {
// Make an event id, with event type and table
$eventId = $event . $table;
// Fire event
$handlerParams = $originalArgs;
unset($handlerParams[1]); // we do not need $event
// Add to fired list
$this->firedEvents[] = $eventId;
$result = call_user_func_array($action, $handlerParams);
if (!is_null($result)) {
return $result;
};
}
}
}
}
|