|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/** |
|
4
|
|
|
* League.Csv (https://csv.thephpleague.com) |
|
5
|
|
|
* |
|
6
|
|
|
* (c) Ignace Nyamagana Butera <[email protected]> |
|
7
|
|
|
* |
|
8
|
|
|
* For the full copyright and license information, please view the LICENSE |
|
9
|
|
|
* file that was distributed with this source code. |
|
10
|
|
|
*/ |
|
11
|
|
|
|
|
12
|
|
|
declare(strict_types=1); |
|
13
|
|
|
|
|
14
|
|
|
namespace League\Csv; |
|
15
|
|
|
|
|
16
|
|
|
use ArrayIterator; |
|
17
|
|
|
use CallbackFilterIterator; |
|
18
|
|
|
use Iterator; |
|
19
|
|
|
use LimitIterator; |
|
20
|
|
|
use function array_reduce; |
|
21
|
|
|
use function iterator_to_array; |
|
22
|
|
|
|
|
23
|
|
|
/** |
|
24
|
|
|
* Criteria to filter a {@link Reader} object. |
|
25
|
|
|
*/ |
|
26
|
|
|
class Statement |
|
27
|
|
|
{ |
|
28
|
|
|
/** |
|
29
|
|
|
* Callables to filter the iterator. |
|
30
|
|
|
* |
|
31
|
|
|
* @var callable[] |
|
32
|
|
|
*/ |
|
33
|
|
|
protected $where = []; |
|
34
|
|
|
|
|
35
|
|
|
/** |
|
36
|
|
|
* Callables to sort the iterator. |
|
37
|
|
|
* |
|
38
|
|
|
* @var callable[] |
|
39
|
|
|
*/ |
|
40
|
|
|
protected $order_by = []; |
|
41
|
|
|
|
|
42
|
|
|
/** |
|
43
|
|
|
* iterator Offset. |
|
44
|
|
|
* |
|
45
|
|
|
* @var int |
|
46
|
|
|
*/ |
|
47
|
|
|
protected $offset = 0; |
|
48
|
|
|
|
|
49
|
|
|
/** |
|
50
|
|
|
* iterator maximum length. |
|
51
|
|
|
* |
|
52
|
|
|
* @var int |
|
53
|
|
|
*/ |
|
54
|
|
|
protected $limit = -1; |
|
55
|
|
|
|
|
56
|
|
|
/** |
|
57
|
|
|
* Set the Iterator filter method. |
|
58
|
|
|
*/ |
|
59
|
3 |
|
public function where(callable $callable): self |
|
60
|
|
|
{ |
|
61
|
3 |
|
$clone = clone $this; |
|
62
|
3 |
|
$clone->where[] = $callable; |
|
63
|
|
|
|
|
64
|
3 |
|
return $clone; |
|
65
|
|
|
} |
|
66
|
|
|
|
|
67
|
|
|
/** |
|
68
|
|
|
* Set an Iterator sorting callable function. |
|
69
|
|
|
*/ |
|
70
|
6 |
|
public function orderBy(callable $callable): self |
|
71
|
|
|
{ |
|
72
|
6 |
|
$clone = clone $this; |
|
73
|
6 |
|
$clone->order_by[] = $callable; |
|
74
|
|
|
|
|
75
|
6 |
|
return $clone; |
|
76
|
|
|
} |
|
77
|
|
|
|
|
78
|
|
|
/** |
|
79
|
|
|
* Set LimitIterator Offset. |
|
80
|
|
|
* |
|
81
|
|
|
* @throws Exception if the offset is lesser than 0 |
|
82
|
|
|
*/ |
|
83
|
18 |
|
public function offset(int $offset): self |
|
84
|
|
|
{ |
|
85
|
18 |
|
if (0 > $offset) { |
|
86
|
3 |
|
throw new InvalidArgument(sprintf('%s() expects the offset to be a positive integer or 0, %s given', __METHOD__, $offset)); |
|
87
|
|
|
} |
|
88
|
|
|
|
|
89
|
15 |
|
if ($offset === $this->offset) { |
|
90
|
3 |
|
return $this; |
|
91
|
|
|
} |
|
92
|
|
|
|
|
93
|
12 |
|
$clone = clone $this; |
|
94
|
12 |
|
$clone->offset = $offset; |
|
95
|
|
|
|
|
96
|
12 |
|
return $clone; |
|
97
|
|
|
} |
|
98
|
|
|
|
|
99
|
|
|
/** |
|
100
|
|
|
* Set LimitIterator Count. |
|
101
|
|
|
* |
|
102
|
|
|
* @throws Exception if the limit is lesser than -1 |
|
103
|
|
|
*/ |
|
104
|
39 |
|
public function limit(int $limit): self |
|
105
|
|
|
{ |
|
106
|
39 |
|
if (-1 > $limit) { |
|
107
|
6 |
|
throw new InvalidArgument(sprintf('%s() expects the limit to be greater or equal to -1, %s given', __METHOD__, $limit)); |
|
108
|
|
|
} |
|
109
|
|
|
|
|
110
|
33 |
|
if ($limit === $this->limit) { |
|
111
|
3 |
|
return $this; |
|
112
|
|
|
} |
|
113
|
|
|
|
|
114
|
30 |
|
$clone = clone $this; |
|
115
|
30 |
|
$clone->limit = $limit; |
|
116
|
|
|
|
|
117
|
30 |
|
return $clone; |
|
118
|
|
|
} |
|
119
|
|
|
|
|
120
|
|
|
/** |
|
121
|
|
|
* Execute the prepared Statement on the {@link Reader} object. |
|
122
|
|
|
* |
|
123
|
|
|
* @param string[] $header an optional header to use instead of the CSV document header |
|
124
|
|
|
*/ |
|
125
|
27 |
|
public function process(Reader $csv, array $header = []): ResultSet |
|
126
|
|
|
{ |
|
127
|
27 |
|
if ([] === $header) { |
|
128
|
27 |
|
$header = $csv->getHeader(); |
|
129
|
|
|
} |
|
130
|
|
|
|
|
131
|
27 |
|
$iterator = array_reduce($this->where, [$this, 'filter'], $csv->getRecords($header)); |
|
132
|
27 |
|
$iterator = $this->buildOrderBy($iterator); |
|
133
|
|
|
|
|
134
|
27 |
|
return new ResultSet(new LimitIterator($iterator, $this->offset, $this->limit), $header); |
|
135
|
|
|
} |
|
136
|
|
|
|
|
137
|
|
|
/** |
|
138
|
|
|
* Filters elements of an Iterator using a callback function. |
|
139
|
|
|
*/ |
|
140
|
6 |
|
protected function filter(Iterator $iterator, callable $callable): CallbackFilterIterator |
|
141
|
|
|
{ |
|
142
|
6 |
|
return new CallbackFilterIterator($iterator, $callable); |
|
143
|
|
|
} |
|
144
|
|
|
|
|
145
|
|
|
/** |
|
146
|
|
|
* Sort the Iterator. |
|
147
|
|
|
*/ |
|
148
|
21 |
|
protected function buildOrderBy(Iterator $iterator): Iterator |
|
149
|
|
|
{ |
|
150
|
21 |
|
if ([] === $this->order_by) { |
|
151
|
15 |
|
return $iterator; |
|
152
|
|
|
} |
|
153
|
|
|
|
|
154
|
|
|
$compare = function (array $record_a, array $record_b): int { |
|
155
|
6 |
|
foreach ($this->order_by as $callable) { |
|
156
|
6 |
|
if (0 !== ($cmp = $callable($record_a, $record_b))) { |
|
157
|
3 |
|
return $cmp; |
|
158
|
|
|
} |
|
159
|
|
|
} |
|
160
|
|
|
|
|
161
|
3 |
|
return $cmp ?? 0; |
|
162
|
6 |
|
}; |
|
163
|
|
|
|
|
164
|
6 |
|
$iterator = new ArrayIterator(iterator_to_array($iterator)); |
|
165
|
6 |
|
$iterator->uasort($compare); |
|
166
|
|
|
|
|
167
|
6 |
|
return $iterator; |
|
168
|
|
|
} |
|
169
|
|
|
} |
|
170
|
|
|
|
thephpleague /
csv
