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<?php |
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/** |
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* Control.php |
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* |
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* @copyright More in license.md |
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* @license http://www.ipublikuj.eu |
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* @author Adam Kadlec http://www.ipublikuj.eu |
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* @package iPublikuj:VisualPaginator! |
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* @subpackage Components |
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* @since 5.0 |
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* |
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* @date 12.03.14 |
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*/ |
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namespace IPub\VisualPaginator\Components; |
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use Nette; |
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use Nette\Application; |
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use Nette\Localization; |
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use Nette\Utils; |
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use IPub; |
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use IPub\VisualPaginator; |
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use IPub\VisualPaginator\Exceptions; |
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/** |
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* Visual paginator control |
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* |
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* @package iPublikuj:VisualPaginator! |
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* @subpackage Components |
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* |
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* @method onShowPage(Control $self, $page) |
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* |
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* @property Application\UI\ITemplate $template |
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*/ |
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class Control extends Application\UI\Control |
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{ |
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/** |
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* @persistent int |
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*/ |
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public $page = 1; |
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/** |
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* Events |
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* |
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* @var array |
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*/ |
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public $onShowPage; |
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/** |
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* @var Utils\Paginator |
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*/ |
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protected $paginator; |
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/** |
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* @var string |
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*/ |
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protected $templateFile; |
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/** |
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* @var int |
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*/ |
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protected $displayRelatedPages; |
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/** |
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* @var Localization\ITranslator |
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*/ |
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protected $translator; |
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/** |
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* @var bool |
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*/ |
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protected $useAjax = TRUE; |
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/** |
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* @param Localization\ITranslator $translator |
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*/ |
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public function injectTranslator(Localization\ITranslator $translator = NULL) |
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{ |
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$this->translator = $translator; |
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} |
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/** |
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* @param NULL|string $templateFile |
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* @param Nette\ComponentModel\IContainer $parent |
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* @param null $name |
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*/ |
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public function __construct( |
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$templateFile = NULL, |
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$displayRelatedPages = NULL, |
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Nette\ComponentModel\IContainer $parent = NULL, $name = NULL |
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) { |
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if ($templateFile) { |
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$this->setTemplateFile($templateFile); |
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} |
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$this->displayRelatedPages = (int)$displayRelatedPages; |
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} |
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/** |
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* Render control |
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*/ |
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public function render() |
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{ |
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// Check if control has template |
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if ($this->template instanceof Nette\Bridges\ApplicationLatte\Template) { |
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// Assign vars to template |
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$this->template->steps = $this->getSteps(); |
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$this->template->paginator = $this->getPaginator(); |
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$this->template->handle = 'showPage!'; |
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$this->template->useAjax = $this->useAjax; |
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// Check if translator is available |
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if ($this->getTranslator() instanceof Localization\ITranslator) { |
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$this->template->setTranslator($this->getTranslator()); |
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} |
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// If template was not defined before... |
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if ($this->template->getFile() === NULL) { |
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// ...try to get base component template file |
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$templateFile = !empty($this->templateFile) ? $this->templateFile : __DIR__ . DIRECTORY_SEPARATOR .'template'. DIRECTORY_SEPARATOR .'default.latte'; |
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$this->template->setFile($templateFile); |
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} |
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// Render component template |
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$this->template->render(); |
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} else { |
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throw new Exceptions\InvalidStateException('Visual paginator control is without template.'); |
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} |
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} |
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/** |
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* @return $this |
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*/ |
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public function enableAjax() |
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{ |
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$this->useAjax = TRUE; |
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return $this; |
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} |
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/** |
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* @return $this |
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*/ |
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public function disableAjax() |
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{ |
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$this->useAjax = FALSE; |
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return $this; |
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} |
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/** |
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* @return Utils\Paginator |
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*/ |
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public function getPaginator() |
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{ |
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// Check if paginator is created |
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if (!$this->paginator) { |
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$this->paginator = new Utils\Paginator; |
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} |
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return $this->paginator; |
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} |
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/** |
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* Change default control template path |
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* |
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* @param string $templateFile |
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* |
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* @return $this |
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* |
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* @throws Exceptions\FileNotFoundException |
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*/ |
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public function setTemplateFile($templateFile) |
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{ |
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// Check if template file exists... |
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if (!is_file($templateFile)) { |
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// ...check if extension template is used |
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if (is_file(__DIR__ . DIRECTORY_SEPARATOR .'template'. DIRECTORY_SEPARATOR . $templateFile)) { |
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$templateFile = __DIR__ . DIRECTORY_SEPARATOR .'template'. DIRECTORY_SEPARATOR . $templateFile; |
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} else { |
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// ...if not throw exception |
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throw new Exceptions\FileNotFoundException('Template file "'. $templateFile .'" was not found.'); |
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} |
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} |
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$this->templateFile = $templateFile; |
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return $this; |
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} |
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/** |
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* @param Localization\ITranslator $translator |
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* |
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* @return $this |
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*/ |
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public function setTranslator(Localization\ITranslator $translator) |
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{ |
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$this->translator = $translator; |
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return $this; |
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} |
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/** |
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* @return Localization\ITranslator|null |
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*/ |
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public function getTranslator() |
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{ |
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if ($this->translator instanceof Localization\ITranslator) { |
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return $this->translator; |
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} |
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return NULL; |
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} |
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/** |
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* @return array |
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*/ |
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public function getSteps() |
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{ |
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// Get Nette paginator |
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$paginator = $this->getPaginator(); |
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// Get actual paginator page |
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$page = $paginator->page; |
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if ($paginator->pageCount < 2) { |
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$steps = [$page]; |
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} else { |
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$relatedPages = $this->displayRelatedPages ?: 3; |
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$arr = range(max($paginator->firstPage, $page - $relatedPages), min($paginator->lastPage, $page + $relatedPages)); |
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$count = 4; |
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$quotient = ($paginator->pageCount - 1) / $count; |
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for ($i = 0; $i <= $count; $i++) { |
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$arr[] = round($quotient * $i) + $paginator->firstPage; |
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} |
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sort($arr); |
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$steps = array_values(array_unique($arr)); |
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} |
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return $steps; |
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} |
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/** |
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* Loads state information |
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* |
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* @param array |
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* |
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* @return void |
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*/ |
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public function loadState(array $params): void |
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{ |
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parent::loadState($params); |
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$this->getPaginator()->page = $this->page; |
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} |
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/** |
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* @param int $page |
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*/ |
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public function handleShowPage($page) |
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{ |
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$this->onShowPage($this, $page); |
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} |
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} |
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In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
string
values, the empty string''
is a special case, in particular the following results might be unexpected: