|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Dyrynda\Database\Support; |
|
4
|
|
|
|
|
5
|
|
|
/** |
|
6
|
|
|
* UUID generation trait. |
|
7
|
|
|
* |
|
8
|
|
|
* Include this trait in any Eloquent model where you wish to automatically set |
|
9
|
|
|
* a UUID field. When saving, if the UUID field has not been set, generate a |
|
10
|
|
|
* new UUID value, which will be set on the model and saved by Eloquent. |
|
11
|
|
|
* |
|
12
|
|
|
* @copyright 2017 Michael Dyrynda |
|
13
|
|
|
* @author Michael Dyrynda <[email protected]> |
|
14
|
|
|
* @license MIT |
|
15
|
|
|
*/ |
|
16
|
|
|
trait GeneratesUuid |
|
17
|
|
|
{ |
|
18
|
|
|
protected $uuidVersions = [ |
|
19
|
|
|
'uuid1', |
|
20
|
|
|
'uuid3', |
|
21
|
|
|
'uuid4', |
|
22
|
|
|
'uuid5', |
|
23
|
|
|
]; |
|
24
|
|
|
|
|
25
|
|
|
/** |
|
26
|
|
|
* Boot the trait, adding a creating observer. |
|
27
|
|
|
* |
|
28
|
|
|
* When persisting a new model instance, we resolve the UUID field, then set |
|
29
|
|
|
* a fresh UUID, taking into account if we need to cast to binary or not. |
|
30
|
|
|
*/ |
|
31
|
|
|
public static function bootGeneratesUuid() |
|
32
|
|
|
{ |
|
33
|
6 |
|
static::creating(function ($model) { |
|
34
|
6 |
|
$uuid = $model->resolveUuid(); |
|
35
|
|
|
|
|
36
|
6 |
|
if (isset($model->attributes['uuid']) && ! is_null($model->attributes['uuid'])) { |
|
37
|
4 |
|
$uuid = $uuid->fromString(strtolower($model->attributes['uuid'])); |
|
38
|
|
|
} |
|
39
|
|
|
|
|
40
|
6 |
|
$model->attributes['uuid'] = $model->hasCast('uuid') ? $uuid->getBytes() : $uuid->toString(); |
|
41
|
6 |
|
}); |
|
42
|
2 |
|
} |
|
43
|
|
|
|
|
44
|
|
|
/** |
|
45
|
|
|
* Resolve a UUID instance for the configured version. |
|
46
|
|
|
* |
|
47
|
|
|
* @return \Ramsey\Uuid\Uuid |
|
48
|
|
|
*/ |
|
49
|
6 |
|
public function resolveUuid() |
|
50
|
|
|
{ |
|
51
|
6 |
|
return call_user_func("\Ramsey\Uuid\Uuid::{$this->resolveUuidVersion()}"); |
|
52
|
|
|
} |
|
53
|
|
|
|
|
54
|
|
|
/** |
|
55
|
|
|
* Resolve the UUID version to use when setting the UUID value. Default to uuid4. |
|
56
|
|
|
* |
|
57
|
|
|
* @return string |
|
58
|
|
|
*/ |
|
59
|
11 |
|
public function resolveUuidVersion() |
|
60
|
|
|
{ |
|
61
|
11 |
|
if (property_exists($this, 'uuidVersion') && in_array($this->uuidVersion, $this->uuidVersions)) { |
|
62
|
4 |
|
return $this->uuidVersion; |
|
63
|
|
|
} |
|
64
|
|
|
|
|
65
|
7 |
|
return 'uuid4'; |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
|
|
/** |
|
69
|
|
|
* Scope queries to find by UUID. |
|
70
|
|
|
* |
|
71
|
|
|
* @param \Illuminate\Database\Eloquent\Builder $query |
|
72
|
|
|
* @param string $uuid |
|
73
|
|
|
* |
|
74
|
|
|
* @return \Illuminate\Database\Eloquent\Builder |
|
75
|
|
|
*/ |
|
76
|
2 |
|
public function scopeWhereUuid($query, $uuid) |
|
77
|
|
|
{ |
|
78
|
2 |
|
return $this->hasCast('uuid') |
|
|
|
|
|
|
79
|
1 |
|
? $query->where('uuid', $this->resolveUuid()->fromString($uuid)->getBytes()) |
|
80
|
2 |
|
: $query->where('uuid', $uuid); |
|
81
|
|
|
} |
|
82
|
|
|
|
|
83
|
|
|
/** |
|
84
|
|
|
* Cast an attribute to a native PHP type. |
|
85
|
|
|
* |
|
86
|
|
|
* @param string $key |
|
87
|
|
|
* @param mixed $value |
|
88
|
|
|
* @return mixed |
|
89
|
|
|
*/ |
|
90
|
2 |
|
protected function castAttribute($key, $value) |
|
91
|
|
|
{ |
|
92
|
2 |
|
if ($key == 'uuid' && ! is_null($value)) { |
|
93
|
2 |
|
return $this->resolveUuid()->fromBytes($value)->toString(); |
|
94
|
|
|
} |
|
95
|
|
|
|
|
96
|
|
|
return parent::castAttribute($key, $value); |
|
97
|
|
|
} |
|
98
|
|
|
} |
|
99
|
|
|
|
michaeldyrynda /
laravel-model-uuid
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idableprovides a methodequalsIdthat in turn relies on the methodgetId(). If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()as an abstract method to the trait will make sure it is available.