This repository has been archived by the owner on Jan 8, 2020. It is now read-only.
/
Result.php
309 lines (279 loc) · 7.49 KB
/
Result.php
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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Db
* @subpackage Adapter
* @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Db\Adapter\Driver\Mysqli;
use Zend\Db\Adapter\Driver\ResultInterface;
/**
* @category Zend
* @package Zend_Db
* @subpackage Adapter
* @copyright Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Result implements \Iterator, ResultInterface
{
const MODE_STATEMENT = 'statement';
const MODE_RESULT = 'result';
/**
* Mode
*
* @var string
*/
protected $mode = null;
/**
* Is query result
*
* @var boolean
*/
protected $isQueryResult = true;
/**
* @var \mysqli_result|\mysqli_stmt
*/
protected $resource = null;
/**
* Cursor position
* @var int
*/
protected $position = 0;
/**
* Number of known rows
* @var int
*/
protected $numberOfRows = -1;
/**
* Is the current() operation already complete for this pointer position?
* @var bool
*/
protected $currentComplete = false;
/**
*
* @var bool
*/
protected $nextComplete = false;
/**
*
* @var bool
*/
protected $currentData = false;
/**
*
* @var array
*/
protected $statementBindValues = array('keys' => null, 'values' => array());
/**
* @var mixed
*/ protected $generatedValue = null;
/**
* Initialize
*
* @param mixed $resource
* @return Result
*/
public function initialize($resource, $generatedValue)
{
if (!$resource instanceof \mysqli && !$resource instanceof \mysqli_result && !$resource instanceof \mysqli_stmt) {
throw new \InvalidArgumentException('Invalid resource provided.');
}
$this->isQueryResult = (!$resource instanceof \mysqli);
$this->resource = $resource;
$this->generatedValue = $generatedValue;
$this->mode = ($this->resource instanceof \mysqli_stmt) ? self::MODE_STATEMENT : self::MODE_RESULT;
if ($this->mode == self::MODE_STATEMENT) {
// must be stored, otherwise fetched resulting rows are lost
$this->resource->store_result();
}
return $this;
}
/**
*
* @return mixed
*/
public function getResource()
{
return $this->resource;
}
/**
* Set is query result
*
* @param boolean $isQueryResult
*/
public function setIsQueryResult($isQueryResult)
{
$this->isQueryResult = $isQueryResult;
}
/**
* Is query result
*
* @return boolean
*/
public function isQueryResult()
{
return $this->isQueryResult;
}
/**
* Get affected rows
*
* @return integer
*/
public function getAffectedRows()
{
if ($this->resource instanceof \mysqli || $this->resource instanceof \mysqli_stmt) {
return $this->resource->affected_rows;
} else {
return $this->resource->num_rows;
}
}
/**
* Current
*
* @return mixed
*/
public function current()
{
if ($this->currentComplete) {
return $this->currentData;
}
if ($this->mode == self::MODE_STATEMENT) {
$this->loadDataFromMysqliStatement();
return $this->currentData;
} else {
$this->loadFromMysqliResult();
return $this->currentData;
}
}
/**
* Mysqli's binding and returning of statement values
*
* Mysqli requires you to bind variables to the extension in order to
* get data out. These values have to be references:
* @see http://php.net/manual/en/mysqli-stmt.bind-result.php
*
* @throws \RuntimeException
* @return bool
*/
protected function loadDataFromMysqliStatement()
{
$data = null;
// build the default reference based bind strutcure, if it does not already exist
if ($this->statementBindValues['keys'] === null) {
$this->statementBindValues['keys'] = array();
$resultResource = $this->resource->result_metadata();
foreach ($resultResource->fetch_fields() as $col) {
$this->statementBindValues['keys'][] = $col->name;
}
$this->statementBindValues['values'] = array_fill(0, count($this->statementBindValues['keys']), null);
$refs = array();
foreach ($this->statementBindValues['values'] as $i => &$f) {
$refs[$i] = &$f;
}
call_user_func_array(array($this->resource, 'bind_result'), $this->statementBindValues['values']);
}
if (($r = $this->resource->fetch()) === null) {
return false;
} elseif ($r === false) {
throw new \RuntimeException($this->resource->error);
}
// dereference
for ($i = 0; $i < count($this->statementBindValues['keys']); $i++) {
$this->currentData[$this->statementBindValues['keys'][$i]] = $this->statementBindValues['values'][$i];
}
$this->currentComplete = true;
$this->nextComplete = true;
$this->position++;
return true;
}
/**
* Load from mysqli result
*
* @return boolean
*/
protected function loadFromMysqliResult()
{
$this->currentData = null;
if (($data = $this->resource->fetch_assoc()) === null) {
return false;
}
$this->position++;
$this->currentData = $data;
$this->currentComplete = true;
$this->nextComplete = true;
$this->position++;
return true;
}
/**
* Next
*/
public function next()
{
$this->currentComplete = false;
if ($this->nextComplete == false) {
$this->position++;
}
$this->nextComplete = false;
}
/**
* Key
*
* @return mixed
*/
public function key()
{
return $this->position;
}
/**
* Rewind
*
*/
public function rewind()
{
$this->currentComplete = false;
$this->position = 0;
$this->resource->data_seek(0);
}
/**
* Valid
*
* @return boolean
*/
public function valid()
{
if ($this->currentComplete) {
return true;
}
if ($this->mode == self::MODE_STATEMENT) {
return $this->loadDataFromMysqliStatement();
} else {
return $this->loadFromMysqliResult();
}
}
/**
* Count
*
* @return integer
*/
public function count()
{
return $this->resource->num_rows;
}
public function getGeneratedValue()
{
return $this->generatedValue;
}
}