177 lines
4.3 KiB
PHP
177 lines
4.3 KiB
PHP
<?php
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namespace Illuminate\Pagination;
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use ArrayAccess;
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use Countable;
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use Illuminate\Contracts\Pagination\Paginator as PaginatorContract;
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use Illuminate\Contracts\Support\Arrayable;
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use Illuminate\Contracts\Support\Jsonable;
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use Illuminate\Support\Collection;
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use IteratorAggregate;
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use JsonSerializable;
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class Paginator extends AbstractPaginator implements Arrayable, ArrayAccess, Countable, IteratorAggregate, Jsonable, JsonSerializable, PaginatorContract
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{
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/**
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* Determine if there are more items in the data source.
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*
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* @return bool
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*/
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protected $hasMore;
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/**
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* Create a new paginator instance.
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*
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* @param mixed $items
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* @param int $perPage
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* @param int|null $currentPage
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* @param array $options (path, query, fragment, pageName)
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* @return void
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*/
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public function __construct($items, $perPage, $currentPage = null, array $options = [])
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{
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$this->options = $options;
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foreach ($options as $key => $value) {
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$this->{$key} = $value;
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}
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$this->perPage = $perPage;
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$this->currentPage = $this->setCurrentPage($currentPage);
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$this->path = $this->path !== '/' ? rtrim($this->path, '/') : $this->path;
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$this->setItems($items);
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}
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/**
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* Get the current page for the request.
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*
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* @param int $currentPage
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* @return int
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*/
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protected function setCurrentPage($currentPage)
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{
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$currentPage = $currentPage ?: static::resolveCurrentPage();
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return $this->isValidPageNumber($currentPage) ? (int) $currentPage : 1;
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}
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/**
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* Set the items for the paginator.
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*
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* @param mixed $items
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* @return void
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*/
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protected function setItems($items)
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{
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$this->items = $items instanceof Collection ? $items : Collection::make($items);
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$this->hasMore = $this->items->count() > $this->perPage;
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$this->items = $this->items->slice(0, $this->perPage);
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}
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/**
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* Get the URL for the next page.
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*
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* @return string|null
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*/
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public function nextPageUrl()
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{
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if ($this->hasMorePages()) {
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return $this->url($this->currentPage() + 1);
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}
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}
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/**
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* Render the paginator using the given view.
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*
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* @param string|null $view
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* @param array $data
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* @return string
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*/
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public function links($view = null, $data = [])
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{
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return $this->render($view, $data);
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}
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/**
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* Render the paginator using the given view.
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*
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* @param string|null $view
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* @param array $data
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* @return \Illuminate\Contracts\Support\Htmlable
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*/
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public function render($view = null, $data = [])
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{
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return static::viewFactory()->make($view ?: static::$defaultSimpleView, array_merge($data, [
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'paginator' => $this,
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]));
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}
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/**
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* Manually indicate that the paginator does have more pages.
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*
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* @param bool $hasMore
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* @return $this
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*/
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public function hasMorePagesWhen($hasMore = true)
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{
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$this->hasMore = $hasMore;
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return $this;
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}
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/**
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* Determine if there are more items in the data source.
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*
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* @return bool
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*/
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public function hasMorePages()
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{
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return $this->hasMore;
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}
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/**
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* Get the instance as an array.
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*
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* @return array
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*/
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public function toArray()
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{
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return [
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'current_page' => $this->currentPage(),
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'data' => $this->items->toArray(),
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'first_page_url' => $this->url(1),
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'from' => $this->firstItem(),
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'next_page_url' => $this->nextPageUrl(),
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'path' => $this->path(),
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'per_page' => $this->perPage(),
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'prev_page_url' => $this->previousPageUrl(),
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'to' => $this->lastItem(),
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];
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}
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/**
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* Convert the object into something JSON serializable.
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*
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* @return array
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*/
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public function jsonSerialize(): array
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{
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return $this->toArray();
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}
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/**
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* Convert the object to its JSON representation.
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*
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* @param int $options
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* @return string
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*/
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public function toJson($options = 0)
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{
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return json_encode($this->jsonSerialize(), $options);
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}
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}
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