|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/* |
|
4
|
|
|
* This file is part of the API Platform project. |
|
5
|
|
|
* |
|
6
|
|
|
* (c) Kévin Dunglas <[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 ApiPlatform\Core\DataProvider; |
|
15
|
|
|
|
|
16
|
|
|
use ApiPlatform\Core\Exception\InvalidArgumentException; |
|
17
|
|
|
use ApiPlatform\Core\Metadata\Resource\Factory\ResourceMetadataFactoryInterface; |
|
18
|
|
|
|
|
19
|
|
|
/** |
|
20
|
|
|
* Pagination configuration. |
|
21
|
|
|
* |
|
22
|
|
|
* @author Baptiste Meyer <[email protected]> |
|
23
|
|
|
*/ |
|
24
|
|
|
final class Pagination |
|
25
|
|
|
{ |
|
26
|
|
|
private $options; |
|
27
|
|
|
private $resourceMetadataFactory; |
|
28
|
|
|
|
|
29
|
|
|
public function __construct(ResourceMetadataFactoryInterface $resourceMetadataFactory, array $options = []) |
|
30
|
|
|
{ |
|
31
|
|
|
$this->resourceMetadataFactory = $resourceMetadataFactory; |
|
32
|
|
|
$this->options = array_merge([ |
|
33
|
|
|
'enabled' => true, |
|
34
|
|
|
'client_enabled' => false, |
|
35
|
|
|
'client_items_per_page' => false, |
|
36
|
|
|
'items_per_page' => 30, |
|
37
|
|
|
'page_default' => 1, |
|
38
|
|
|
'page_parameter_name' => 'page', |
|
39
|
|
|
'enabled_parameter_name' => 'pagination', |
|
40
|
|
|
'items_per_page_parameter_name' => 'itemsPerPage', |
|
41
|
|
|
'maximum_items_per_page' => null, |
|
42
|
|
|
'partial' => false, |
|
43
|
|
|
'client_partial' => false, |
|
44
|
|
|
'partial_parameter_name' => 'partial', |
|
45
|
|
|
], $options); |
|
46
|
|
|
} |
|
47
|
|
|
|
|
48
|
|
|
/** |
|
49
|
|
|
* Gets the current page. |
|
50
|
|
|
* |
|
51
|
|
|
* @throws InvalidArgumentException |
|
52
|
|
|
*/ |
|
53
|
|
|
public function getPage(array $context = []): int |
|
54
|
|
|
{ |
|
55
|
|
|
$page = (int) $this->getParameterFromContext( |
|
56
|
|
|
$context, |
|
57
|
|
|
$this->options['page_parameter_name'], |
|
58
|
|
|
$this->options['page_default'] |
|
59
|
|
|
); |
|
60
|
|
|
|
|
61
|
|
|
if (1 > $page) { |
|
62
|
|
|
throw new InvalidArgumentException('Page should not be less than 1'); |
|
63
|
|
|
} |
|
64
|
|
|
|
|
65
|
|
|
return $page; |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
|
|
/** |
|
69
|
|
|
* Gets the current offset. |
|
70
|
|
|
*/ |
|
71
|
|
|
public function getOffset(string $resourceClass = null, string $operationName = null, array $context = []): int |
|
72
|
|
|
{ |
|
73
|
|
|
$graphql = (bool) ($context['graphql_operation_name'] ?? false); |
|
74
|
|
|
|
|
75
|
|
|
$limit = $this->getLimit($resourceClass, $operationName, $context); |
|
76
|
|
|
|
|
77
|
|
|
if ($graphql && null !== ($after = $this->getParameterFromContext($context, 'after'))) { |
|
78
|
|
|
return false === ($after = base64_decode($after, true)) ? 0 : (int) $after + 1; |
|
79
|
|
|
} |
|
80
|
|
|
|
|
81
|
|
|
if ($graphql && null !== ($before = $this->getParameterFromContext($context, 'before'))) { |
|
82
|
|
|
return ($offset = (false === ($before = base64_decode($before, true)) ? 0 : (int) $before - $limit)) < 0 ? 0 : $offset; |
|
83
|
|
|
} |
|
84
|
|
|
|
|
85
|
|
|
if ($graphql && null !== ($last = $this->getParameterFromContext($context, 'last'))) { |
|
86
|
|
|
return ($offset = ($context['count'] ?? 0) - $last) < 0 ? 0 : $offset; |
|
87
|
|
|
} |
|
88
|
|
|
|
|
89
|
|
|
return ($this->getPage($context) - 1) * $limit; |
|
90
|
|
|
} |
|
91
|
|
|
|
|
92
|
|
|
/** |
|
93
|
|
|
* Gets the current limit. |
|
94
|
|
|
* |
|
95
|
|
|
* @throws InvalidArgumentException |
|
96
|
|
|
*/ |
|
97
|
|
|
public function getLimit(string $resourceClass = null, string $operationName = null, array $context = []): int |
|
98
|
|
|
{ |
|
99
|
|
|
$graphql = (bool) ($context['graphql_operation_name'] ?? false); |
|
100
|
|
|
|
|
101
|
|
|
$limit = $this->options['items_per_page']; |
|
102
|
|
|
$clientLimit = $this->options['client_items_per_page']; |
|
103
|
|
|
|
|
104
|
|
|
if (null !== $resourceClass) { |
|
105
|
|
|
$resourceMetadata = $this->resourceMetadataFactory->create($resourceClass); |
|
106
|
|
|
$limit = $resourceMetadata->getCollectionOperationAttribute($operationName, 'pagination_items_per_page', $limit, true); |
|
107
|
|
|
$clientLimit = $resourceMetadata->getCollectionOperationAttribute($operationName, 'pagination_client_items_per_page', $clientLimit, true); |
|
108
|
|
|
} |
|
109
|
|
|
|
|
110
|
|
|
if ($graphql && null !== ($first = $this->getParameterFromContext($context, 'first'))) { |
|
111
|
|
|
$limit = $first; |
|
112
|
|
|
} |
|
113
|
|
|
|
|
114
|
|
|
if ($graphql && null !== ($last = $this->getParameterFromContext($context, 'last'))) { |
|
115
|
|
|
$limit = $last; |
|
116
|
|
|
} |
|
117
|
|
|
|
|
118
|
|
|
if ($graphql && null !== ($before = $this->getParameterFromContext($context, 'before')) |
|
119
|
|
|
&& (false === ($before = base64_decode($before, true)) ? 0 : (int) $before - $limit) < 0) { |
|
120
|
|
|
$limit = (int) $before; |
|
121
|
|
|
} |
|
122
|
|
|
|
|
123
|
|
|
if ($clientLimit) { |
|
124
|
|
|
$limit = (int) $this->getParameterFromContext($context, $this->options['items_per_page_parameter_name'], $limit); |
|
125
|
|
|
$maxItemsPerPage = $this->options['maximum_items_per_page']; |
|
126
|
|
|
|
|
127
|
|
|
if (null !== $resourceClass) { |
|
128
|
|
|
$resourceMetadata = $this->resourceMetadataFactory->create($resourceClass); |
|
129
|
|
|
$maxItemsPerPage = $resourceMetadata->getCollectionOperationAttribute($operationName, 'maximum_items_per_page', $maxItemsPerPage, true); |
|
130
|
|
|
} |
|
131
|
|
|
|
|
132
|
|
|
if (null !== $maxItemsPerPage && $limit > $maxItemsPerPage) { |
|
133
|
|
|
$limit = $maxItemsPerPage; |
|
134
|
|
|
} |
|
135
|
|
|
} |
|
136
|
|
|
|
|
137
|
|
|
if (0 > $limit) { |
|
138
|
|
|
throw new InvalidArgumentException('Limit should not be less than 0'); |
|
139
|
|
|
} |
|
140
|
|
|
|
|
141
|
|
|
return $limit; |
|
142
|
|
|
} |
|
143
|
|
|
|
|
144
|
|
|
/** |
|
145
|
|
|
* Gets info about the pagination. |
|
146
|
|
|
* |
|
147
|
|
|
* Returns an array with the following info as values: |
|
148
|
|
|
* - the page {@see Pagination::getPage()} |
|
149
|
|
|
* - the offset {@see Pagination::getOffset()} |
|
150
|
|
|
* - the limit {@see Pagination::getLimit()} |
|
151
|
|
|
* |
|
152
|
|
|
* @throws InvalidArgumentException |
|
153
|
|
|
*/ |
|
154
|
|
|
public function getPagination(string $resourceClass = null, string $operationName = null, array $context = []): array |
|
155
|
|
|
{ |
|
156
|
|
|
$page = $this->getPage($context); |
|
157
|
|
|
$limit = $this->getLimit($resourceClass, $operationName, $context); |
|
158
|
|
|
|
|
159
|
|
|
if (0 === $limit && 1 < $page) { |
|
160
|
|
|
throw new InvalidArgumentException('Page should not be greater than 1 if limit is equal to 0'); |
|
161
|
|
|
} |
|
162
|
|
|
|
|
163
|
|
|
return [$page, $this->getOffset($resourceClass, $operationName, $context), $limit]; |
|
164
|
|
|
} |
|
165
|
|
|
|
|
166
|
|
|
/** |
|
167
|
|
|
* Is the pagination enabled? |
|
168
|
|
|
*/ |
|
169
|
|
|
public function isEnabled(string $resourceClass = null, string $operationName = null, array $context = []): bool |
|
170
|
|
|
{ |
|
171
|
|
|
return $this->getEnabled($context, $resourceClass, $operationName); |
|
172
|
|
|
} |
|
173
|
|
|
|
|
174
|
|
|
/** |
|
175
|
|
|
* Is the partial pagination enabled? |
|
176
|
|
|
*/ |
|
177
|
|
|
public function isPartialEnabled(string $resourceClass = null, string $operationName = null, array $context = []): bool |
|
178
|
|
|
{ |
|
179
|
|
|
return $this->getEnabled($context, $resourceClass, $operationName, true); |
|
180
|
|
|
} |
|
181
|
|
|
|
|
182
|
|
|
/** |
|
183
|
|
|
* Is the classic or partial pagination enabled? |
|
184
|
|
|
*/ |
|
185
|
|
|
private function getEnabled(array $context, string $resourceClass = null, string $operationName = null, bool $partial = false): bool |
|
186
|
|
|
{ |
|
187
|
|
|
$enabled = $this->options[$partial ? 'partial' : 'enabled']; |
|
188
|
|
|
$clientEnabled = $this->options[$partial ? 'client_partial' : 'client_enabled']; |
|
189
|
|
|
|
|
190
|
|
|
if (null !== $resourceClass) { |
|
191
|
|
|
$resourceMetadata = $this->resourceMetadataFactory->create($resourceClass); |
|
192
|
|
|
$enabled = $resourceMetadata->getCollectionOperationAttribute($operationName, $partial ? 'pagination_partial' : 'pagination_enabled', $enabled, true); |
|
193
|
|
|
|
|
194
|
|
|
$clientEnabled = $resourceMetadata->getCollectionOperationAttribute($operationName, $partial ? 'pagination_client_partial' : 'pagination_client_enabled', $clientEnabled, true); |
|
195
|
|
|
} |
|
196
|
|
|
|
|
197
|
|
|
if ($clientEnabled) { |
|
198
|
|
|
return filter_var($this->getParameterFromContext($context, $this->options[$partial ? 'partial_parameter_name' : 'enabled_parameter_name'], $enabled), FILTER_VALIDATE_BOOLEAN); |
|
199
|
|
|
} |
|
200
|
|
|
|
|
201
|
|
|
return $enabled; |
|
202
|
|
|
} |
|
203
|
|
|
|
|
204
|
|
|
/** |
|
205
|
|
|
* Gets the given pagination parameter name from the given context. |
|
206
|
|
|
* |
|
207
|
|
|
* @param mixed|null $default |
|
208
|
|
|
*/ |
|
209
|
|
|
private function getParameterFromContext(array $context, string $parameterName, $default = null) |
|
210
|
|
|
{ |
|
211
|
|
|
$filters = $context['filters'] ?? []; |
|
212
|
|
|
|
|
213
|
|
|
return \array_key_exists($parameterName, $filters) ? $filters[$parameterName] : $default; |
|
214
|
|
|
} |
|
215
|
|
|
} |
|
216
|
|
|
|
api-platform /
core
