|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Sfneal\Queries; |
|
4
|
|
|
|
|
5
|
|
|
use Illuminate\Database\Eloquent\Model; |
|
6
|
|
|
use Sfneal\Caching\Traits\Cacheable; |
|
7
|
|
|
use Sfneal\Models\AbstractModel; |
|
8
|
|
|
|
|
9
|
|
|
class NextOrPreviousModelQuery extends AbstractQuery |
|
10
|
|
|
{ |
|
11
|
|
|
use Cacheable; |
|
12
|
|
|
|
|
13
|
|
|
/** |
|
14
|
|
|
* @var bool Determine if the return model should be the 'next' or 'previous' |
|
15
|
|
|
*/ |
|
16
|
|
|
private $next; |
|
17
|
|
|
|
|
18
|
|
|
/** |
|
19
|
|
|
* @var string Cache Key String ('next' or 'previous') |
|
20
|
|
|
*/ |
|
21
|
|
|
private $cache_key_string; |
|
22
|
|
|
|
|
23
|
|
|
/** |
|
24
|
|
|
* @var AbstractModel|string |
|
25
|
|
|
*/ |
|
26
|
|
|
private $model; |
|
27
|
|
|
|
|
28
|
|
|
/** |
|
29
|
|
|
* @var int Model ID |
|
30
|
|
|
*/ |
|
31
|
|
|
private $model_id; |
|
32
|
|
|
|
|
33
|
|
|
/** |
|
34
|
|
|
* NextOrPreviousModelQuery constructor. |
|
35
|
|
|
* |
|
36
|
|
|
* @param AbstractModel|string $model |
|
37
|
|
|
* @param int $model_id |
|
38
|
|
|
* @param bool $next |
|
39
|
|
|
*/ |
|
40
|
|
|
public function __construct($model, int $model_id, bool $next = true) |
|
41
|
|
|
{ |
|
42
|
|
|
$this->model = $model; |
|
43
|
|
|
$this->model_id = $model_id; |
|
44
|
|
|
$this->next = $next; |
|
45
|
|
|
$this->cache_key_string = $next ? 'next' : 'previous'; |
|
46
|
|
|
} |
|
47
|
|
|
|
|
48
|
|
|
/** |
|
49
|
|
|
* Retrieve the 'next' or 'previous' Model. |
|
50
|
|
|
* |
|
51
|
|
|
* @return Model|null |
|
52
|
|
|
*/ |
|
53
|
|
|
public function execute() |
|
54
|
|
|
{ |
|
55
|
|
|
$query = $this->model::query(); |
|
56
|
|
|
|
|
57
|
|
|
// Next Model |
|
58
|
|
|
if ($this->next == true) { |
|
|
|
|
|
|
59
|
|
|
return $query->getNextModel($this->model_id); |
|
60
|
|
|
} |
|
61
|
|
|
|
|
62
|
|
|
// Previous Model |
|
63
|
|
|
else { |
|
64
|
|
|
return $query->getPreviousModel($this->model_id); |
|
65
|
|
|
} |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
|
|
/** |
|
69
|
|
|
* Set the returned model to 'next'. |
|
70
|
|
|
* |
|
71
|
|
|
* @return $this |
|
72
|
|
|
*/ |
|
73
|
|
|
public function next(): self |
|
74
|
|
|
{ |
|
75
|
|
|
$this->next = true; |
|
76
|
|
|
$this->cache_key_string = 'next'; |
|
77
|
|
|
|
|
78
|
|
|
return $this; |
|
79
|
|
|
} |
|
80
|
|
|
|
|
81
|
|
|
/** |
|
82
|
|
|
* Set the returned model to 'previous'. |
|
83
|
|
|
* |
|
84
|
|
|
* @return $this |
|
85
|
|
|
*/ |
|
86
|
|
|
public function previous(): self |
|
87
|
|
|
{ |
|
88
|
|
|
$this->next = false; |
|
89
|
|
|
$this->cache_key_string = 'previous'; |
|
90
|
|
|
|
|
91
|
|
|
return $this; |
|
92
|
|
|
} |
|
93
|
|
|
|
|
94
|
|
|
/** |
|
95
|
|
|
* Retrieve the Queries Cache Key. |
|
96
|
|
|
* |
|
97
|
|
|
* @return string |
|
98
|
|
|
*/ |
|
99
|
|
|
public function cacheKey(): string |
|
100
|
|
|
{ |
|
101
|
|
|
return $this->model::getTableName().":{$this->cache_key_string}:#{$this->model_id}"; |
|
102
|
|
|
} |
|
103
|
|
|
} |
|
104
|
|
|
|
sfneal /
queries
When comparing two booleans, it is generally considered safer to use the strict comparison operator.