Pagination::setTotalCount() - Code Metrics - Inspection of "Fix #20226: Revert all PR for "Data providers perf..." - yiisoft/yii2 - Measure and Improve Code Quality continuously with Scrutinizer

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by Alexander

created 2024-07-12 05:49 UTC

Pagination::setTotalCount() A

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Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

Metric	Value
cc	1
eloc	1
nc	1
nop	1
dl	0
loc	3
ccs	2
cts	2
cp	1
crap	1
rs	10
c	0
b	0
f	0

<?php
/**
 * @link https://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license https://www.yiiframework.com/license/
 */

namespace yii\data;

use Yii;
use yii\base\BaseObject;
use yii\web\Link;
use yii\web\Linkable;
use yii\web\Request;

/**
 * Pagination represents information relevant to pagination of data items.
 *
 * When data needs to be rendered in multiple pages, Pagination can be used to
 * represent information such as [[totalCount|total item count]], [[pageSize|page size]],
 * [[page|current page]], etc. These information can be passed to [[\yii\widgets\LinkPager|pagers]]
 * to render pagination buttons or links.
 *
 * The following example shows how to create a pagination object and feed it
 * to a pager.
 *
 * Controller action:
 *
 * ```php
 * public function actionIndex()
 * {
 *     $query = Article::find()->where(['status' => 1]);
 *     $countQuery = clone $query;
 *     $pages = new Pagination(['totalCount' => $countQuery->count()]);
 *     $models = $query->offset($pages->offset)
 *         ->limit($pages->limit)
 *         ->all();
 *
 *     return $this->render('index', [
 *          'models' => $models,
 *          'pages' => $pages,
 *     ]);
 * }
 * ```
 *
 * View:
 *
 * ```php
 * foreach ($models as $model) {
 *     // display $model here
 * }
 *
 * // display pagination
 * echo LinkPager::widget([
 *     'pagination' => $pages,
 * ]);
 * ```
 *
 * For more details and usage information on Pagination, see the [guide article on pagination](guide:output-pagination).
 *
 * @property-read int $limit The limit of the data. This may be used to set the LIMIT value for a SQL
 * statement for fetching the current page of data. Note that if the page size is infinite, a value -1 will be
 * returned.
 * @property-read array $links The links for navigational purpose. The array keys specify the purpose of the
 * links (e.g. [[LINK_FIRST]]), and the array values are the corresponding URLs.
 * @property-read int $offset The offset of the data. This may be used to set the OFFSET value for a SQL
 * statement for fetching the current page of data.
 * @property int $page The zero-based current page number.
 * @property-read int $pageCount Number of pages.
 * @property int $pageSize The number of items per page. If it is less than 1, it means the page size is
 * infinite, and thus a single page contains all items.
 *
 * @author Qiang Xue <[email protected]>
 * @since 2.0
 */
class Pagination extends BaseObject implements Linkable
{
    const LINK_NEXT = 'next';
    const LINK_PREV = 'prev';
    const LINK_FIRST = 'first';
    const LINK_LAST = 'last';

    /**
     * @var string name of the parameter storing the current page index.
     * @see params
     */
    public $pageParam = 'page';
    /**
     * @var string name of the parameter storing the page size.
     * @see params
     */
    public $pageSizeParam = 'per-page';
    /**
     * @var bool whether to always have the page parameter in the URL created by [[createUrl()]].
     * If false and [[page]] is 0, the page parameter will not be put in the URL.
     */
    public $forcePageParam = true;
    /**
     * @var string|null the route of the controller action for displaying the paged contents.
     * If not set, it means using the currently requested route.
     */
    public $route;
    /**
     * @var array|null parameters (name => value) that should be used to obtain the current page number
     * and to create new pagination URLs. If not set, all parameters from $_GET will be used instead.
     *
     * In order to add hash to all links use `array_merge($_GET, ['#' => 'my-hash'])`.
     *
     * The array element indexed by [[pageParam]] is considered to be the current page number (defaults to 0);
     * while the element indexed by [[pageSizeParam]] is treated as the page size (defaults to [[defaultPageSize]]).
     */
    public $params;
    /**
     * @var \yii\web\UrlManager|null the URL manager used for creating pagination URLs. If not set,
     * the "urlManager" application component will be used.
     */
    public $urlManager;
    /**
     * @var bool whether to check if [[page]] is within valid range.
     * When this property is true, the value of [[page]] will always be between 0 and ([[pageCount]]-1).
     * Because [[pageCount]] relies on the correct value of [[totalCount]] which may not be available
     * in some cases (e.g. MongoDB), you may want to set this property to be false to disable the page
     * number validation. By doing so, [[page]] will return the value indexed by [[pageParam]] in [[params]].
     */
    public $validatePage = true;
    /**
     * @var int total number of items.
     */
    public $totalCount = 0;
    /**
     * @var int the default page size. This property will be returned by [[pageSize]] when page size
     * cannot be determined by [[pageSizeParam]] from [[params]].
     */
    public $defaultPageSize = 20;
    /**
     * @var array|false the page size limits. The first array element defines the minimum page size, and the second
     * the maximum page size. If this is false, it means [[pageSize]] should always return the value of [[defaultPageSize]].
     */
    public $pageSizeLimit = [1, 50];

    /**
     * @var int number of items on each page.
     * If it is less than 1, it means the page size is infinite, and thus a single page contains all items.
     */
    private $_pageSize;


    /**
     * @return int number of pages
     */
    public function getPageCount()
    {
        $pageSize = $this->getPageSize();
        if ($pageSize < 1) {
            return $this->totalCount > 0 ? 1 : 0;
        }

        $totalCount = $this->totalCount < 0 ? 0 : (int) $this->totalCount;

        return (int) (($totalCount + $pageSize - 1) / $pageSize);
    }

    private $_page;

    /**
     * Returns the zero-based current page number.
     * @param bool $recalculate whether to recalculate the current page based on the page size and item count.
     * @return int the zero-based current page number.
     */
    public function getPage($recalculate = false)
    {
        if ($this->_page === null || $recalculate) {
            $page = (int) $this->getQueryParam($this->pageParam, 1) - 1;
            $this->setPage($page, true);
        }

        return $this->_page;
    }

    /**
     * Sets the current page number.
     * @param int $value the zero-based index of the current page.
     * @param bool $validatePage whether to validate the page number. Note that in order
     * to validate the page number, both [[validatePage]] and this parameter must be true.
     */
    public function setPage($value, $validatePage = false)
    {
        if ($value === null) {

            $this->_page = null;
        } else {
            $value = (int) $value;
            if ($validatePage && $this->validatePage) {
                $pageCount = $this->getPageCount();
                if ($value >= $pageCount) {
                    $value = $pageCount - 1;
                }
            }
            if ($value < 0) {
                $value = 0;
            }
            $this->_page = $value;
        }
    }

    /**
     * Returns the number of items per page.
     * By default, this method will try to determine the page size by [[pageSizeParam]] in [[params]].
     * If the page size cannot be determined this way, [[defaultPageSize]] will be returned.
     * @return int the number of items per page. If it is less than 1, it means the page size is infinite,
     * and thus a single page contains all items.
     * @see pageSizeLimit
     */
    public function getPageSize()
    {
        if ($this->_pageSize === null) {
            if (empty($this->pageSizeLimit) || !isset($this->pageSizeLimit[0], $this->pageSizeLimit[1])) {
                $pageSize = $this->defaultPageSize;
                $this->setPageSize($pageSize);
            } else {
                $pageSize = (int) $this->getQueryParam($this->pageSizeParam, $this->defaultPageSize);
                $this->setPageSize($pageSize, true);
            }
        }

        return $this->_pageSize;
    }

    /**
     * @param int $value the number of items per page.
     * @param bool $validatePageSize whether to validate page size.
     */
    public function setPageSize($value, $validatePageSize = false)
    {
        if ($value === null) {

            $this->_pageSize = null;
        } else {
            $value = (int) $value;
            if ($validatePageSize && isset($this->pageSizeLimit[0], $this->pageSizeLimit[1])) {
                if ($value < $this->pageSizeLimit[0]) {
                    $value = $this->pageSizeLimit[0];
                } elseif ($value > $this->pageSizeLimit[1]) {
                    $value = $this->pageSizeLimit[1];
                }
            }
            $this->_pageSize = $value;
        }
    }

    /**
     * Creates the URL suitable for pagination with the specified page number.
     * This method is mainly called by pagers when creating URLs used to perform pagination.
     * @param int $page the zero-based page number that the URL should point to.
     * @param int|null $pageSize the number of items on each page. If not set, the value of [[pageSize]] will be used.
     * @param bool $absolute whether to create an absolute URL. Defaults to `false`.
     * @return string the created URL
     * @see params
     * @see forcePageParam
     */
    public function createUrl($page, $pageSize = null, $absolute = false)
    {
        $page = (int) $page;
        $pageSize = (int) $pageSize;
        if (($params = $this->params) === null) {
            $request = Yii::$app->getRequest();
            $params = $request instanceof Request ? $request->getQueryParams() : [];
        }
        if ($page > 0 || $page == 0 && $this->forcePageParam) {
            $params[$this->pageParam] = $page + 1;
        } else {
            unset($params[$this->pageParam]);
        }
        if ($pageSize <= 0) {
            $pageSize = $this->getPageSize();
        }
        if ($pageSize != $this->defaultPageSize) {
            $params[$this->pageSizeParam] = $pageSize;
        } else {
            unset($params[$this->pageSizeParam]);
        }
        $params[0] = $this->route === null ? Yii::$app->controller->getRoute() : $this->route;
        $urlManager = $this->urlManager === null ? Yii::$app->getUrlManager() : $this->urlManager;
        if ($absolute) {
            return $urlManager->createAbsoluteUrl($params);
        }

        return $urlManager->createUrl($params);
    }

    /**
     * @return int the offset of the data. This may be used to set the
     * OFFSET value for a SQL statement for fetching the current page of data.
     */
    public function getOffset()
    {
        $pageSize = $this->getPageSize();

        return $pageSize < 1 ? 0 : $this->getPage() * $pageSize;
    }

    /**
     * @return int the limit of the data. This may be used to set the
     * LIMIT value for a SQL statement for fetching the current page of data.
     * Note that if the page size is infinite, a value -1 will be returned.
     */
    public function getLimit()
    {
        $pageSize = $this->getPageSize();

        return $pageSize < 1 ? -1 : $pageSize;
    }

    /**
     * Returns a whole set of links for navigating to the first, last, next and previous pages.
     * @param bool $absolute whether the generated URLs should be absolute.
     * @return array the links for navigational purpose. The array keys specify the purpose of the links (e.g. [[LINK_FIRST]]),
     * and the array values are the corresponding URLs.
     */
    public function getLinks($absolute = false)
    {
        $currentPage = $this->getPage();
        $pageCount = $this->getPageCount();

        $links = [Link::REL_SELF => $this->createUrl($currentPage, null, $absolute)];
        if ($pageCount > 0) {
            $links[self::LINK_FIRST] = $this->createUrl(0, null, $absolute);
            $links[self::LINK_LAST] = $this->createUrl($pageCount - 1, null, $absolute);
            if ($currentPage > 0) {
                $links[self::LINK_PREV] = $this->createUrl($currentPage - 1, null, $absolute);
            }
            if ($currentPage < $pageCount - 1) {
                $links[self::LINK_NEXT] = $this->createUrl($currentPage + 1, null, $absolute);
            }
        }

        return $links;
    }

    /**
     * Returns the value of the specified query parameter.
     * This method returns the named parameter value from [[params]]. Null is returned if the value does not exist.
     * @param string $name the parameter name
     * @param string|null $defaultValue the value to be returned when the specified parameter does not exist in [[params]].
     * @return string|null the parameter value
     */
    protected function getQueryParam($name, $defaultValue = null)
    {
        if (($params = $this->params) === null) {
            $request = Yii::$app->getRequest();
            $params = $request instanceof Request ? $request->getQueryParams() : [];
        }

        return isset($params[$name]) && is_scalar($params[$name]) ? $params[$name] : $defaultValue;
    }
}


1		<?php
2		/**
3		* @link https://www.yiiframework.com/
4		* @copyright Copyright (c) 2008 Yii Software LLC
5		* @license https://www.yiiframework.com/license/
6		*/
7
8		namespace yii\data;
9
10		use Yii;
11		use yii\base\BaseObject;
12		use yii\web\Link;
13		use yii\web\Linkable;
14		use yii\web\Request;
15
16		/**
17		* Pagination represents information relevant to pagination of data items.
18		*
19		* When data needs to be rendered in multiple pages, Pagination can be used to
20		* represent information such as [[totalCount\|total item count]], [[pageSize\|page size]],
21		* [[page\|current page]], etc. These information can be passed to [[\yii\widgets\LinkPager\|pagers]]
22		* to render pagination buttons or links.
23		*
24		* The following example shows how to create a pagination object and feed it
25		* to a pager.
26		*
27		* Controller action:
28		*
29		* ```php
30		* public function actionIndex()
31		* {
32		* $query = Article::find()->where(['status' => 1]);
33		* $countQuery = clone $query;
34		* $pages = new Pagination(['totalCount' => $countQuery->count()]);
35		* $models = $query->offset($pages->offset)
36		* ->limit($pages->limit)
37		* ->all();
38		*
39		* return $this->render('index', [
40		* 'models' => $models,
41		* 'pages' => $pages,
42		* ]);
43		* }
44		* ```
45		*
46		* View:
47		*
48		* ```php
49		* foreach ($models as $model) {
50		* // display $model here
51		* }
52		*
53		* // display pagination
54		* echo LinkPager::widget([
55		* 'pagination' => $pages,
56		* ]);
57		* ```
58		*
59		* For more details and usage information on Pagination, see the [guide article on pagination](guide:output-pagination).
60		*
61		* @property-read int $limit The limit of the data. This may be used to set the LIMIT value for a SQL
62		* statement for fetching the current page of data. Note that if the page size is infinite, a value -1 will be
63		* returned.
64		* @property-read array $links The links for navigational purpose. The array keys specify the purpose of the
65		* links (e.g. [[LINK_FIRST]]), and the array values are the corresponding URLs.
66		* @property-read int $offset The offset of the data. This may be used to set the OFFSET value for a SQL
67		* statement for fetching the current page of data.
68		* @property int $page The zero-based current page number.
69		* @property-read int $pageCount Number of pages.
70		* @property int $pageSize The number of items per page. If it is less than 1, it means the page size is
71		* infinite, and thus a single page contains all items.
72		*
73		* @author Qiang Xue <[email protected]>
74		* @since 2.0
75		*/
76		class Pagination extends BaseObject implements Linkable
77		{
78		const LINK_NEXT = 'next';
79		const LINK_PREV = 'prev';
80		const LINK_FIRST = 'first';
81		const LINK_LAST = 'last';
82
83		/**
84		* @var string name of the parameter storing the current page index.
85		* @see params
86		*/
87		public $pageParam = 'page';
88		/**
89		* @var string name of the parameter storing the page size.
90		* @see params
91		*/
92		public $pageSizeParam = 'per-page';
93		/**
94		* @var bool whether to always have the page parameter in the URL created by [[createUrl()]].
95		* If false and [[page]] is 0, the page parameter will not be put in the URL.
96		*/
97		public $forcePageParam = true;
98		/**
99		* @var string\|null the route of the controller action for displaying the paged contents.
100		* If not set, it means using the currently requested route.
101		*/
102		public $route;
103		/**
104		* @var array\|null parameters (name => value) that should be used to obtain the current page number
105		* and to create new pagination URLs. If not set, all parameters from $_GET will be used instead.
106		*
107		* In order to add hash to all links use `array_merge($_GET, ['#' => 'my-hash'])`.
108		*
109		* The array element indexed by [[pageParam]] is considered to be the current page number (defaults to 0);
110		* while the element indexed by [[pageSizeParam]] is treated as the page size (defaults to [[defaultPageSize]]).
111		*/
112		public $params;
113		/**
114		* @var \yii\web\UrlManager\|null the URL manager used for creating pagination URLs. If not set,
115		* the "urlManager" application component will be used.
116		*/
117		public $urlManager;
118		/**
119		* @var bool whether to check if [[page]] is within valid range.
120		* When this property is true, the value of [[page]] will always be between 0 and ([[pageCount]]-1).
121		* Because [[pageCount]] relies on the correct value of [[totalCount]] which may not be available
122		* in some cases (e.g. MongoDB), you may want to set this property to be false to disable the page
123		* number validation. By doing so, [[page]] will return the value indexed by [[pageParam]] in [[params]].
124		*/
125		public $validatePage = true;
126		/**
127		* @var int total number of items.
128		*/
129		public $totalCount = 0;
130		/**
131		* @var int the default page size. This property will be returned by [[pageSize]] when page size
132		* cannot be determined by [[pageSizeParam]] from [[params]].
133		*/
134		public $defaultPageSize = 20;
135		/**
136		* @var array\|false the page size limits. The first array element defines the minimum page size, and the second
137		* the maximum page size. If this is false, it means [[pageSize]] should always return the value of [[defaultPageSize]].
138		*/
139		public $pageSizeLimit = [1, 50];
140
141		/**
142		* @var int number of items on each page.
143		* If it is less than 1, it means the page size is infinite, and thus a single page contains all items.
144		*/
145		private $_pageSize;
146
147
148		/**
149		* @return int number of pages
150		*/
151	107	public function getPageCount()
152		{
153	107	$pageSize = $this->getPageSize();
154	107	if ($pageSize < 1) {
155	8	return $this->totalCount > 0 ? 1 : 0;
156		}
157
158	99	$totalCount = $this->totalCount < 0 ? 0 : (int) $this->totalCount;
159
160	99	return (int) (($totalCount + $pageSize - 1) / $pageSize);
161		}
162
163		private $_page;
164
165		/**
166		* Returns the zero-based current page number.
167		* @param bool $recalculate whether to recalculate the current page based on the page size and item count.
168		* @return int the zero-based current page number.
169		*/
170	102	public function getPage($recalculate = false)
171		{
172	102	if ($this->_page === null \|\| $recalculate) {
173	67	$page = (int) $this->getQueryParam($this->pageParam, 1) - 1;
174	67	$this->setPage($page, true);
175		}
176
177	102	return $this->_page;
178		}
179
180		/**
181		* Sets the current page number.
182		* @param int $value the zero-based index of the current page.
183		* @param bool $validatePage whether to validate the page number. Note that in order
184		* to validate the page number, both [[validatePage]] and this parameter must be true.
185		*/
186	99	public function setPage($value, $validatePage = false)
187		{
188	99	if ($value === null) {
		0 ignored issues – show introduced 2019-02-03 21:14 UTC by Report Bug Copy Issue Report The condition `$value === null` is always `false`. Loading history...
189	2	$this->_page = null;
190		} else {
191	99	$value = (int) $value;
192	99	if ($validatePage && $this->validatePage) {
193	82	$pageCount = $this->getPageCount();
194	82	if ($value >= $pageCount) {
195	24	$value = $pageCount - 1;
196		}
197		}
198	99	if ($value < 0) {
199	21	$value = 0;
200		}
201	99	$this->_page = $value;
202		}
203		}
204
205		/**
206		* Returns the number of items per page.
207		* By default, this method will try to determine the page size by [[pageSizeParam]] in [[params]].
208		* If the page size cannot be determined this way, [[defaultPageSize]] will be returned.
209		* @return int the number of items per page. If it is less than 1, it means the page size is infinite,
210		* and thus a single page contains all items.
211		* @see pageSizeLimit
212		*/
213	141	public function getPageSize()
214		{
215	141	if ($this->_pageSize === null) {
216	97	if (empty($this->pageSizeLimit) \|\| !isset($this->pageSizeLimit[0], $this->pageSizeLimit[1])) {
217	6	$pageSize = $this->defaultPageSize;
218	6	$this->setPageSize($pageSize);
219		} else {
220	91	$pageSize = (int) $this->getQueryParam($this->pageSizeParam, $this->defaultPageSize);
221	91	$this->setPageSize($pageSize, true);
222		}
223		}
224
225	141	return $this->_pageSize;
226		}
227
228		/**
229		* @param int $value the number of items per page.
230		* @param bool $validatePageSize whether to validate page size.
231		*/
232	136	public function setPageSize($value, $validatePageSize = false)
233		{
234	136	if ($value === null) {
		0 ignored issues – show introduced 2019-02-03 21:14 UTC by Report Bug Copy Issue Report The condition `$value === null` is always `false`. Loading history...
235	4	$this->_pageSize = null;
236		} else {
237	136	$value = (int) $value;
238	136	if ($validatePageSize && isset($this->pageSizeLimit[0], $this->pageSizeLimit[1])) {
239	94	if ($value < $this->pageSizeLimit[0]) {
240	2	$value = $this->pageSizeLimit[0];
241	92	} elseif ($value > $this->pageSizeLimit[1]) {
242	2	$value = $this->pageSizeLimit[1];
243		}
244		}
245	136	$this->_pageSize = $value;
246		}
247		}
248
249		/**
250		* Creates the URL suitable for pagination with the specified page number.
251		* This method is mainly called by pagers when creating URLs used to perform pagination.
252		* @param int $page the zero-based page number that the URL should point to.
253		* @param int\|null $pageSize the number of items on each page. If not set, the value of [[pageSize]] will be used.
254		* @param bool $absolute whether to create an absolute URL. Defaults to `false`.
255		* @return string the created URL
256		* @see params
257		* @see forcePageParam
258		*/
259	29	public function createUrl($page, $pageSize = null, $absolute = false)
260		{
261	29	$page = (int) $page;
262	29	$pageSize = (int) $pageSize;
263	29	if (($params = $this->params) === null) {
264	26	$request = Yii::$app->getRequest();
265	26	$params = $request instanceof Request ? $request->getQueryParams() : [];
266		}
267	29	if ($page > 0 \|\| $page == 0 && $this->forcePageParam) {
268	29	$params[$this->pageParam] = $page + 1;
269		} else {
270	1	unset($params[$this->pageParam]);
271		}
272	29	if ($pageSize <= 0) {
273	26	$pageSize = $this->getPageSize();
274		}
275	29	if ($pageSize != $this->defaultPageSize) {
276	17	$params[$this->pageSizeParam] = $pageSize;
277		} else {
278	12	unset($params[$this->pageSizeParam]);
279		}
280	29	$params[0] = $this->route === null ? Yii::$app->controller->getRoute() : $this->route;
281	29	$urlManager = $this->urlManager === null ? Yii::$app->getUrlManager() : $this->urlManager;
282	29	if ($absolute) {
283	8	return $urlManager->createAbsoluteUrl($params);
284		}
285
286	21	return $urlManager->createUrl($params);
287		}
288
289		/**
290		* @return int the offset of the data. This may be used to set the
291		* OFFSET value for a SQL statement for fetching the current page of data.
292		*/
293	73	public function getOffset()
294		{
295	73	$pageSize = $this->getPageSize();
296
297	73	return $pageSize < 1 ? 0 : $this->getPage() * $pageSize;
298		}
299
300		/**
301		* @return int the limit of the data. This may be used to set the
302		* LIMIT value for a SQL statement for fetching the current page of data.
303		* Note that if the page size is infinite, a value -1 will be returned.
304		*/
305	71	public function getLimit()
306		{
307	71	$pageSize = $this->getPageSize();
308
309	71	return $pageSize < 1 ? -1 : $pageSize;
310		}
311
312		/**
313		* Returns a whole set of links for navigating to the first, last, next and previous pages.
314		* @param bool $absolute whether the generated URLs should be absolute.
315		* @return array the links for navigational purpose. The array keys specify the purpose of the links (e.g. [[LINK_FIRST]]),
316		* and the array values are the corresponding URLs.
317		*/
318	16	public function getLinks($absolute = false)
319		{
320	16	$currentPage = $this->getPage();
321	16	$pageCount = $this->getPageCount();
322
323	16	$links = [Link::REL_SELF => $this->createUrl($currentPage, null, $absolute)];
324	16	if ($pageCount > 0) {
325	13	$links[self::LINK_FIRST] = $this->createUrl(0, null, $absolute);
326	13	$links[self::LINK_LAST] = $this->createUrl($pageCount - 1, null, $absolute);
327	13	if ($currentPage > 0) {
328	6	$links[self::LINK_PREV] = $this->createUrl($currentPage - 1, null, $absolute);
329		}
330	13	if ($currentPage < $pageCount - 1) {
331	3	$links[self::LINK_NEXT] = $this->createUrl($currentPage + 1, null, $absolute);
332		}
333		}
334
335	16	return $links;
336		}
337
338		/**
339		* Returns the value of the specified query parameter.
340		* This method returns the named parameter value from [[params]]. Null is returned if the value does not exist.
341		* @param string $name the parameter name
342		* @param string\|null $defaultValue the value to be returned when the specified parameter does not exist in [[params]].
343		* @return string\|null the parameter value
344		*/
345	93	protected function getQueryParam($name, $defaultValue = null)
346		{
347	93	if (($params = $this->params) === null) {
348	88	$request = Yii::$app->getRequest();
349	88	$params = $request instanceof Request ? $request->getQueryParams() : [];
350		}
351
352	93	return isset($params[$name]) && is_scalar($params[$name]) ? $params[$name] : $defaultValue;
353		}
354		}
355

yiisoft / yii2

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