|
1
|
|
|
<?php |
|
2
|
|
|
namespace vakata\database\schema; |
|
3
|
|
|
|
|
4
|
|
|
use vakata\collection\Collection; |
|
5
|
|
|
use vakata\database\DBException; |
|
6
|
|
|
|
|
7
|
|
|
/** |
|
8
|
|
|
* A table query iterator |
|
9
|
|
|
*/ |
|
10
|
|
|
class TableQueryIterator implements \Iterator, \ArrayAccess |
|
11
|
|
|
{ |
|
12
|
|
|
const SEP = '___'; |
|
13
|
|
|
/** |
|
14
|
|
|
* @var array |
|
15
|
|
|
*/ |
|
16
|
|
|
protected $pkey; |
|
17
|
|
|
/** |
|
18
|
|
|
* @var Collection |
|
19
|
|
|
*/ |
|
20
|
|
|
protected $result; |
|
21
|
|
|
/** |
|
22
|
|
|
* @var array[] |
|
23
|
|
|
*/ |
|
24
|
|
|
protected $relations; |
|
25
|
|
|
/** |
|
26
|
|
|
* @var array[] |
|
27
|
|
|
*/ |
|
28
|
|
|
protected $aliases; |
|
29
|
|
|
/** |
|
30
|
|
|
* @var string|null |
|
31
|
|
|
*/ |
|
32
|
|
|
protected $primary = null; |
|
33
|
|
|
/** |
|
34
|
|
|
* @var int |
|
35
|
|
|
*/ |
|
36
|
|
|
protected $fetched = 0; |
|
37
|
|
|
|
|
38
|
90 |
|
public function __construct(Collection $result, array $pkey, array $relations = [], array $aliases = []) |
|
39
|
|
|
{ |
|
40
|
90 |
|
$this->pkey = $pkey; |
|
41
|
90 |
|
$this->result = $result; |
|
42
|
90 |
|
$this->relations = $relations; |
|
43
|
90 |
|
$this->aliases = $aliases; |
|
44
|
90 |
|
} |
|
45
|
|
|
|
|
46
|
90 |
|
public function key() |
|
47
|
|
|
{ |
|
48
|
90 |
|
return $this->fetched; |
|
49
|
|
|
} |
|
50
|
90 |
|
public function current() |
|
51
|
|
|
{ |
|
52
|
90 |
|
$result = null; |
|
53
|
90 |
|
$remove = []; |
|
54
|
90 |
|
while ($this->result->valid()) { |
|
55
|
90 |
|
$row = $this->result->current(); |
|
56
|
90 |
|
$pk = []; |
|
57
|
90 |
|
foreach ($this->pkey as $field) { |
|
58
|
90 |
|
$pk[$field] = $row[$field]; |
|
59
|
|
|
} |
|
60
|
90 |
|
$pk = json_encode($pk); |
|
61
|
90 |
|
if ($pk === false) { |
|
62
|
|
|
throw new DBException('Invalid PK'); |
|
63
|
|
|
} |
|
64
|
90 |
|
if ($this->primary !== null && $pk !== $this->primary) { |
|
65
|
66 |
|
break; |
|
66
|
|
|
} |
|
67
|
90 |
|
$this->primary = $pk; |
|
68
|
90 |
|
if (!$result) { |
|
69
|
90 |
|
$result = $row; |
|
70
|
|
|
} |
|
71
|
90 |
|
foreach ($this->relations as $name => $relation) { |
|
72
|
18 |
|
$relation = $relation[0]; |
|
73
|
18 |
|
$fields = []; |
|
74
|
18 |
|
$exists = false; |
|
75
|
18 |
|
foreach ($relation->table->getColumns() as $column) { |
|
76
|
18 |
|
$nm = $name . static::SEP . $column; |
|
77
|
18 |
|
if (isset($this->aliases[$nm])) { |
|
78
|
18 |
|
$nm = $this->aliases[$nm]; |
|
79
|
|
|
} |
|
80
|
18 |
|
$fields[$column] = $row[$nm]; |
|
81
|
18 |
|
if (!$exists && $row[$nm] !== null) { |
|
82
|
18 |
|
$exists = true; |
|
83
|
|
|
} |
|
84
|
18 |
|
$remove[] = $nm; // $name . static::SEP . $column; |
|
85
|
|
|
} |
|
86
|
18 |
|
$temp = &$result; |
|
87
|
18 |
|
$parts = explode(static::SEP, $name); |
|
88
|
18 |
|
$name = array_pop($parts); |
|
89
|
18 |
|
if (!$exists && !count($parts) && !isset($temp[$name])) { |
|
90
|
6 |
|
$temp[$name] = $relation->many ? [ '___clean' => true ] : null; |
|
91
|
|
|
} |
|
92
|
18 |
|
if ($exists) { |
|
93
|
18 |
|
$full = ''; |
|
94
|
18 |
|
foreach ($parts as $item) { |
|
95
|
3 |
|
$full = $full ? $full . static::SEP . $item : $item; |
|
96
|
3 |
|
$temp = &$temp[$item]; |
|
97
|
3 |
|
$rpk = []; |
|
98
|
3 |
|
foreach ($this->relations[$full][0]->table->getPrimaryKey() as $pkey) { |
|
99
|
3 |
|
$nm = $full . static::SEP . $pkey; |
|
100
|
3 |
|
if (isset($this->aliases[$nm])) { |
|
101
|
3 |
|
$nm = $this->aliases[$nm]; |
|
102
|
|
|
} |
|
103
|
3 |
|
$rpk[$pkey] = $row[$nm]; |
|
104
|
|
|
} |
|
105
|
3 |
|
$temp = &$temp[json_encode($rpk)]; |
|
106
|
|
|
} |
|
107
|
18 |
|
if (!isset($temp[$name])) { |
|
108
|
18 |
|
$temp[$name] = $relation->many ? [ '___clean' => true ] : null; |
|
109
|
|
|
} |
|
110
|
18 |
|
$temp = &$temp[$name]; |
|
111
|
18 |
|
if ($relation->many) { |
|
112
|
12 |
|
$rpk = []; |
|
113
|
12 |
|
foreach ($relation->table->getPrimaryKey() as $field) { |
|
114
|
12 |
|
$rpk[$field] = $fields[$field]; |
|
115
|
|
|
} |
|
116
|
12 |
|
$temp[json_encode($rpk)] = array_merge($temp[json_encode($rpk)] ?? [], $fields); |
|
117
|
|
|
} else { |
|
118
|
12 |
|
$temp = array_merge($temp ?? [], $fields); |
|
119
|
|
|
} |
|
120
|
|
|
} |
|
121
|
|
|
} |
|
122
|
90 |
|
$this->result->next(); |
|
123
|
|
|
} |
|
124
|
90 |
|
if ($result) { |
|
125
|
90 |
|
foreach ($remove as $name) { |
|
126
|
18 |
|
unset($result[$name]); |
|
127
|
|
|
} |
|
128
|
90 |
|
$result = $this->values($result); |
|
129
|
|
|
} |
|
130
|
90 |
|
return $result; |
|
131
|
|
|
} |
|
132
|
90 |
|
protected function values(array $data) |
|
133
|
|
|
{ |
|
134
|
90 |
|
foreach ($data as $k => $v) { |
|
135
|
90 |
|
if (is_array($v) && isset($v['___clean']) && $v['___clean'] === true) { |
|
136
|
12 |
|
unset($v['___clean']); |
|
137
|
12 |
|
$data[$k] = array_values($v); |
|
138
|
12 |
|
foreach ($data[$k] as $kk => $vv) { |
|
139
|
12 |
|
$data[$k][$kk] = $this->values($vv); |
|
140
|
|
|
} |
|
141
|
|
|
} |
|
142
|
|
|
} |
|
143
|
90 |
|
return $data; |
|
144
|
|
|
} |
|
145
|
|
|
|
|
146
|
90 |
|
public function rewind() |
|
147
|
|
|
{ |
|
148
|
90 |
|
$this->fetched = 0; |
|
149
|
90 |
|
$this->primary = null; |
|
150
|
90 |
|
return $this->result->rewind(); |
|
151
|
|
|
} |
|
152
|
90 |
|
public function next() |
|
153
|
|
|
{ |
|
154
|
90 |
|
if ($this->primary === null) { |
|
155
|
|
|
$this->result->next(); |
|
156
|
|
|
if ($this->result->valid()) { |
|
157
|
|
|
$row = $this->result->current(); |
|
158
|
|
|
$temp = []; |
|
159
|
|
|
foreach ($this->pkey as $field) { |
|
160
|
|
|
$temp[$field] = $row[$field]; |
|
161
|
|
|
} |
|
162
|
|
|
$pk = json_encode($temp); |
|
163
|
|
|
if ($pk === false) { |
|
164
|
|
|
throw new DBException('Invalid PK'); |
|
165
|
|
|
} |
|
166
|
|
|
$this->primary = $pk; |
|
167
|
|
|
return; |
|
168
|
|
|
} |
|
169
|
|
|
} |
|
170
|
90 |
|
$this->fetched ++; |
|
171
|
90 |
|
while ($this->result->valid()) { |
|
172
|
66 |
|
$row = $this->result->current(); |
|
173
|
66 |
|
$pk = []; |
|
174
|
66 |
|
foreach ($this->pkey as $field) { |
|
175
|
66 |
|
$pk[$field] = $row[$field]; |
|
176
|
|
|
} |
|
177
|
66 |
|
$pk = json_encode($pk); |
|
178
|
66 |
|
if ($pk === false) { |
|
179
|
|
|
throw new DBException('Invalid PK'); |
|
180
|
|
|
} |
|
181
|
66 |
|
if ($this->primary !== $pk) { |
|
182
|
66 |
|
$this->primary = $pk; |
|
183
|
66 |
|
break; |
|
184
|
|
|
} |
|
185
|
|
|
$this->result->next(); |
|
186
|
|
|
} |
|
187
|
90 |
|
} |
|
188
|
90 |
|
public function valid() |
|
189
|
|
|
{ |
|
190
|
90 |
|
return $this->result->valid(); |
|
191
|
|
|
} |
|
192
|
|
|
|
|
193
|
30 |
|
public function offsetGet($offset) |
|
194
|
|
|
{ |
|
195
|
30 |
|
$index = $this->fetched; |
|
196
|
30 |
|
$item = null; |
|
197
|
30 |
|
foreach ($this as $k => $v) { |
|
198
|
30 |
|
if ($k === $offset) { |
|
199
|
30 |
|
$item = $v; |
|
200
|
|
|
} |
|
201
|
|
|
} |
|
202
|
30 |
|
foreach ($this as $k => $v) { |
|
203
|
30 |
|
if ($k === $index) { |
|
204
|
30 |
|
break; |
|
205
|
|
|
} |
|
206
|
|
|
} |
|
207
|
30 |
|
return $item; |
|
208
|
|
|
} |
|
209
|
|
|
public function offsetExists($offset) |
|
210
|
|
|
{ |
|
211
|
|
|
$index = $this->fetched; |
|
212
|
|
|
$exists = false; |
|
213
|
|
|
foreach ($this as $k => $v) { |
|
214
|
|
|
if ($k === $offset) { |
|
215
|
|
|
$exists = true; |
|
216
|
|
|
} |
|
217
|
|
|
} |
|
218
|
|
|
foreach ($this as $k => $v) { |
|
219
|
|
|
if ($k === $index) { |
|
220
|
|
|
break; |
|
221
|
|
|
} |
|
222
|
|
|
} |
|
223
|
|
|
return $exists; |
|
224
|
|
|
} |
|
225
|
|
|
public function offsetSet($offset, $value) |
|
226
|
|
|
{ |
|
227
|
|
|
throw new DBException('Invalid call to offsetSet'); |
|
228
|
|
|
} |
|
229
|
|
|
public function offsetUnset($offset) |
|
230
|
|
|
{ |
|
231
|
|
|
throw new DBException('Invalid call to offsetUnset'); |
|
232
|
|
|
} |
|
233
|
|
|
} |
|
234
|
|
|
|
vakata /
database
