|
1
|
|
|
<?php |
|
2
|
|
|
namespace Maphper\Lib; |
|
3
|
|
|
//Replaces dates in an object graph with \DateTime instances |
|
4
|
|
|
class DateInjector { |
|
5
|
|
|
private $processCache; |
|
6
|
|
|
private $dateFormats = [ |
|
7
|
|
|
['Y-m-d H:i:s', 20], |
|
8
|
|
|
['Y-m-d', 10], |
|
9
|
|
|
['Y-n-d', 9] |
|
10
|
|
|
]; |
|
11
|
|
|
|
|
12
|
|
|
public function replaceDates($obj, $reset = true) { |
|
13
|
|
|
//prevent infinite recursion, only process each object once |
|
14
|
|
|
if ($this->checkCache($obj, $reset)) return $obj; |
|
15
|
|
|
|
|
16
|
|
|
if ($this->isIterable($obj)) foreach ($obj as &$o) $o = $this->replaceDates($o, false); |
|
17
|
|
|
if ($this->isPossiblyDateString($obj)) $obj = $this->tryToGetDateObjFromString($obj); |
|
18
|
|
|
return $obj; |
|
19
|
|
|
} |
|
20
|
|
|
|
|
21
|
|
|
private function tryToGetDateObjFromString($obj) { |
|
22
|
|
|
try { |
|
23
|
|
|
$date = new \DateTimeImmutable($obj); |
|
24
|
|
|
if ($this->dateMatchesFormats($date, $obj)) $obj = $date; |
|
25
|
|
|
} |
|
26
|
|
|
catch (\Exception $e) { //Doesn't need to do anything as the try/catch is working out whether $obj is a date |
|
27
|
|
|
} |
|
28
|
|
|
return $obj; |
|
29
|
|
|
} |
|
30
|
|
|
|
|
31
|
|
|
private function dateMatchesFormats($date, $str) { |
|
32
|
|
|
foreach ($this->dateFormats as list($format, $len)) { |
|
33
|
|
|
if ($date->format($format) == substr($str, 0, $len)) return true; |
|
34
|
|
|
} |
|
35
|
|
|
return false; |
|
36
|
|
|
} |
|
37
|
|
|
|
|
38
|
|
|
private function isIterable($obj) { |
|
39
|
|
|
return is_array($obj) || (is_object($obj) && ($obj instanceof \Iterator)); |
|
40
|
|
|
} |
|
41
|
|
|
|
|
42
|
|
|
private function isPossiblyDateString($obj) { |
|
43
|
|
|
return is_string($obj) && isset($obj[0]) && is_numeric($obj[0]) && strlen($obj) <= 20; |
|
44
|
|
|
} |
|
45
|
|
|
|
|
46
|
|
|
private function checkCache($obj, $reset) { |
|
47
|
|
|
if ($reset) $this->processCache = new \SplObjectStorage(); |
|
48
|
|
|
if (!is_object($obj)) return false; |
|
49
|
|
|
|
|
50
|
|
|
if ($this->processCache->contains($obj)) return $obj; |
|
51
|
|
|
else $this->processCache->attach($obj, true); |
|
52
|
|
|
|
|
53
|
|
|
return false; |
|
54
|
|
|
} |
|
55
|
|
|
} |
|
56
|
|
|
|
Level-2 /
Maphper
