|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* Plasma Driver MySQL component |
|
4
|
|
|
* Copyright 2018-2019 PlasmaPHP, All Rights Reserved |
|
5
|
|
|
* |
|
6
|
|
|
* Website: https://github.com/PlasmaPHP |
|
7
|
|
|
* License: https://github.com/PlasmaPHP/driver-mysql/blob/master/LICENSE |
|
8
|
|
|
*/ |
|
9
|
|
|
|
|
10
|
|
|
namespace Plasma\Drivers\MySQL\Commands; |
|
11
|
|
|
|
|
12
|
|
|
/** |
|
13
|
|
|
* Fetch command. |
|
14
|
|
|
* @internal |
|
15
|
|
|
*/ |
|
16
|
|
|
class FetchCommand extends StatementExecuteCommand { |
|
17
|
|
|
/** |
|
18
|
|
|
* The identifier for this command. |
|
19
|
|
|
* @var int |
|
20
|
|
|
* @source |
|
21
|
|
|
*/ |
|
22
|
|
|
const COMMAND_ID = 0x1C; |
|
23
|
|
|
|
|
24
|
|
|
/** |
|
25
|
|
|
* @var \Plasma\Drivers\MySQL\StatementCursor |
|
26
|
|
|
*/ |
|
27
|
|
|
protected $cursor; |
|
28
|
|
|
|
|
29
|
|
|
/** |
|
30
|
|
|
* @var int |
|
31
|
|
|
*/ |
|
32
|
|
|
protected $amount; |
|
33
|
|
|
|
|
34
|
|
|
/** |
|
35
|
|
|
* @var array |
|
36
|
|
|
*/ |
|
37
|
|
|
protected $rows = array(); |
|
38
|
|
|
|
|
39
|
|
|
/** |
|
40
|
|
|
* Constructor. |
|
41
|
|
|
* @param \Plasma\DriverInterface $driver |
|
42
|
|
|
* @param \Plasma\Drivers\MySQL\StatementCursor $cursor |
|
43
|
|
|
* @param mixed $id |
|
44
|
|
|
* @param string $query |
|
45
|
|
|
* @param array $params |
|
46
|
|
|
* @param \Plasma\ColumnDefinitionInterface[] $paramsDef |
|
47
|
|
|
* @param \Plasma\ColumnDefinitionInterface[] $fields |
|
48
|
|
|
* @param int $amount |
|
49
|
|
|
*/ |
|
50
|
|
|
function __construct( |
|
51
|
|
|
\Plasma\DriverInterface $driver, |
|
52
|
|
|
\Plasma\Drivers\MySQL\StatementCursor $cursor, |
|
53
|
|
|
$id, |
|
54
|
|
|
string $query, |
|
55
|
|
|
array $params, |
|
56
|
|
|
array $paramsDef, |
|
57
|
|
|
array $fields, |
|
58
|
|
|
int $amount |
|
59
|
|
|
) { |
|
60
|
|
|
parent::__construct($driver, $id, $query, $params, $paramsDef, 0); |
|
61
|
|
|
|
|
62
|
|
|
$this->cursor = $cursor; |
|
63
|
|
|
$this->fields = $fields; |
|
64
|
|
|
$this->amount = $amount; |
|
65
|
|
|
|
|
66
|
|
|
$this->on('data', function ($row) { |
|
67
|
|
|
$this->rows[] = $row; |
|
68
|
|
|
}); |
|
69
|
|
|
|
|
70
|
|
|
$this->removeAllListeners('end'); |
|
71
|
|
|
$this->once('end', function () { |
|
72
|
|
|
// Let the event loop read the stream buffer before resolving |
|
73
|
|
|
$this->driver->getLoop()->futureTick(function () { |
|
74
|
|
|
// Unwrap if we only have one row |
|
75
|
|
|
$crows = \count($this->rows); |
|
76
|
|
|
$rows = ($crows === 1 ? \reset($this->rows) : ($crows === 0 ? false : $this->rows)); |
|
77
|
|
|
|
|
78
|
|
|
$this->deferred->resolve($rows); |
|
79
|
|
|
$this->rows = null; |
|
80
|
|
|
}); |
|
81
|
|
|
}); |
|
82
|
|
|
} |
|
83
|
|
|
|
|
84
|
|
|
/** |
|
85
|
|
|
* Get the encoded message for writing to the database connection. |
|
86
|
|
|
* @return string |
|
87
|
|
|
*/ |
|
88
|
|
|
function getEncodedMessage(): string { |
|
89
|
|
|
$packet = \chr(static::COMMAND_ID); |
|
90
|
|
|
$packet .= \Plasma\BinaryBuffer::writeInt4($this->id); |
|
91
|
|
|
$packet .= \Plasma\BinaryBuffer::writeInt4($this->amount); |
|
92
|
|
|
|
|
93
|
|
|
return $packet; |
|
94
|
|
|
} |
|
95
|
|
|
|
|
96
|
|
|
/** |
|
97
|
|
|
* Sends the next received value into the command. |
|
98
|
|
|
* @param mixed $value |
|
99
|
|
|
* @return void |
|
100
|
|
|
*/ |
|
101
|
|
|
function onNext($value): void { |
|
102
|
|
|
if($value instanceof \Plasma\Drivers\MySQL\ProtocolOnNextCaller) { |
|
103
|
|
|
$this->handleQueryOnNextCaller($value); |
|
104
|
|
|
} elseif($value instanceof \Plasma\Drivers\MySQL\Messages\OkResponseMessage || $value instanceof \Plasma\Drivers\MySQL\Messages\EOFMessage) { |
|
105
|
|
|
$this->cursor->processOkMessage($value); |
|
106
|
|
|
$value->getParser()->markCommandAsFinished($this); |
|
107
|
|
|
} |
|
108
|
|
|
} |
|
109
|
|
|
} |
|
110
|
|
|
|
PlasmaPHP /
driver-mysql
