672 lines
15 KiB
PHP
672 lines
15 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
namespace Illuminate\Pagination;
|
||
|
|
|
||
|
|
use ArrayAccess;
|
||
|
|
use Closure;
|
||
|
|
use Exception;
|
||
|
|
use Illuminate\Contracts\Support\Htmlable;
|
||
|
|
use Illuminate\Database\Eloquent\Model;
|
||
|
|
use Illuminate\Database\Eloquent\Relations\Pivot;
|
||
|
|
use Illuminate\Http\Resources\Json\JsonResource;
|
||
|
|
use Illuminate\Support\Arr;
|
||
|
|
use Illuminate\Support\Collection;
|
||
|
|
use Illuminate\Support\Str;
|
||
|
|
use Illuminate\Support\Traits\ForwardsCalls;
|
||
|
|
use Illuminate\Support\Traits\Tappable;
|
||
|
|
use Traversable;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @mixin \Illuminate\Support\Collection
|
||
|
|
*/
|
||
|
|
abstract class AbstractCursorPaginator implements Htmlable
|
||
|
|
{
|
||
|
|
use ForwardsCalls, Tappable;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* All of the items being paginated.
|
||
|
|
*
|
||
|
|
* @var \Illuminate\Support\Collection
|
||
|
|
*/
|
||
|
|
protected $items;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The number of items to be shown per page.
|
||
|
|
*
|
||
|
|
* @var int
|
||
|
|
*/
|
||
|
|
protected $perPage;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The base path to assign to all URLs.
|
||
|
|
*
|
||
|
|
* @var string
|
||
|
|
*/
|
||
|
|
protected $path = '/';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The query parameters to add to all URLs.
|
||
|
|
*
|
||
|
|
* @var array
|
||
|
|
*/
|
||
|
|
protected $query = [];
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The URL fragment to add to all URLs.
|
||
|
|
*
|
||
|
|
* @var string|null
|
||
|
|
*/
|
||
|
|
protected $fragment;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The cursor string variable used to store the page.
|
||
|
|
*
|
||
|
|
* @var string
|
||
|
|
*/
|
||
|
|
protected $cursorName = 'cursor';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The current cursor.
|
||
|
|
*
|
||
|
|
* @var \Illuminate\Pagination\Cursor|null
|
||
|
|
*/
|
||
|
|
protected $cursor;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The paginator parameters for the cursor.
|
||
|
|
*
|
||
|
|
* @var array
|
||
|
|
*/
|
||
|
|
protected $parameters;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The paginator options.
|
||
|
|
*
|
||
|
|
* @var array
|
||
|
|
*/
|
||
|
|
protected $options;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The current cursor resolver callback.
|
||
|
|
*
|
||
|
|
* @var \Closure
|
||
|
|
*/
|
||
|
|
protected static $currentCursorResolver;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the URL for a given cursor.
|
||
|
|
*
|
||
|
|
* @param \Illuminate\Pagination\Cursor|null $cursor
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function url($cursor)
|
||
|
|
{
|
||
|
|
// If we have any extra query string key / value pairs that need to be added
|
||
|
|
// onto the URL, we will put them in query string form and then attach it
|
||
|
|
// to the URL. This allows for extra information like sortings storage.
|
||
|
|
$parameters = is_null($cursor) ? [] : [$this->cursorName => $cursor->encode()];
|
||
|
|
|
||
|
|
if (count($this->query) > 0) {
|
||
|
|
$parameters = array_merge($this->query, $parameters);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->path()
|
||
|
|
.(str_contains($this->path(), '?') ? '&' : '?')
|
||
|
|
.Arr::query($parameters)
|
||
|
|
.$this->buildFragment();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the URL for the previous page.
|
||
|
|
*
|
||
|
|
* @return string|null
|
||
|
|
*/
|
||
|
|
public function previousPageUrl()
|
||
|
|
{
|
||
|
|
if (is_null($previousCursor = $this->previousCursor())) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->url($previousCursor);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The URL for the next page, or null.
|
||
|
|
*
|
||
|
|
* @return string|null
|
||
|
|
*/
|
||
|
|
public function nextPageUrl()
|
||
|
|
{
|
||
|
|
if (is_null($nextCursor = $this->nextCursor())) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->url($nextCursor);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the "cursor" that points to the previous set of items.
|
||
|
|
*
|
||
|
|
* @return \Illuminate\Pagination\Cursor|null
|
||
|
|
*/
|
||
|
|
public function previousCursor()
|
||
|
|
{
|
||
|
|
if (is_null($this->cursor) ||
|
||
|
|
($this->cursor->pointsToPreviousItems() && ! $this->hasMore)) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($this->items->isEmpty()) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->getCursorForItem($this->items->first(), false);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the "cursor" that points to the next set of items.
|
||
|
|
*
|
||
|
|
* @return \Illuminate\Pagination\Cursor|null
|
||
|
|
*/
|
||
|
|
public function nextCursor()
|
||
|
|
{
|
||
|
|
if ((is_null($this->cursor) && ! $this->hasMore) ||
|
||
|
|
(! is_null($this->cursor) && $this->cursor->pointsToNextItems() && ! $this->hasMore)) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($this->items->isEmpty()) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->getCursorForItem($this->items->last(), true);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get a cursor instance for the given item.
|
||
|
|
*
|
||
|
|
* @param \ArrayAccess|\stdClass $item
|
||
|
|
* @param bool $isNext
|
||
|
|
* @return \Illuminate\Pagination\Cursor
|
||
|
|
*/
|
||
|
|
public function getCursorForItem($item, $isNext = true)
|
||
|
|
{
|
||
|
|
return new Cursor($this->getParametersForItem($item), $isNext);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the cursor parameters for a given object.
|
||
|
|
*
|
||
|
|
* @param \ArrayAccess|\stdClass $item
|
||
|
|
* @return array
|
||
|
|
*
|
||
|
|
* @throws \Exception
|
||
|
|
*/
|
||
|
|
public function getParametersForItem($item)
|
||
|
|
{
|
||
|
|
return collect($this->parameters)
|
||
|
|
->flip()
|
||
|
|
->map(function ($_, $parameterName) use ($item) {
|
||
|
|
if ($item instanceof JsonResource) {
|
||
|
|
$item = $item->resource;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($item instanceof Model &&
|
||
|
|
! is_null($parameter = $this->getPivotParameterForItem($item, $parameterName))) {
|
||
|
|
return $parameter;
|
||
|
|
} elseif ($item instanceof ArrayAccess || is_array($item)) {
|
||
|
|
return $this->ensureParameterIsPrimitive(
|
||
|
|
$item[$parameterName] ?? $item[Str::afterLast($parameterName, '.')]
|
||
|
|
);
|
||
|
|
} elseif (is_object($item)) {
|
||
|
|
return $this->ensureParameterIsPrimitive(
|
||
|
|
$item->{$parameterName} ?? $item->{Str::afterLast($parameterName, '.')}
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
throw new Exception('Only arrays and objects are supported when cursor paginating items.');
|
||
|
|
})->toArray();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the cursor parameter value from a pivot model if applicable.
|
||
|
|
*
|
||
|
|
* @param \ArrayAccess|\stdClass $item
|
||
|
|
* @param string $parameterName
|
||
|
|
* @return string|null
|
||
|
|
*/
|
||
|
|
protected function getPivotParameterForItem($item, $parameterName)
|
||
|
|
{
|
||
|
|
$table = Str::beforeLast($parameterName, '.');
|
||
|
|
|
||
|
|
foreach ($item->getRelations() as $relation) {
|
||
|
|
if ($relation instanceof Pivot && $relation->getTable() === $table) {
|
||
|
|
return $this->ensureParameterIsPrimitive(
|
||
|
|
$relation->getAttribute(Str::afterLast($parameterName, '.'))
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Ensure the parameter is a primitive type.
|
||
|
|
*
|
||
|
|
* This can resolve issues that arise the developer uses a value object for an attribute.
|
||
|
|
*
|
||
|
|
* @param mixed $parameter
|
||
|
|
* @return mixed
|
||
|
|
*/
|
||
|
|
protected function ensureParameterIsPrimitive($parameter)
|
||
|
|
{
|
||
|
|
return is_object($parameter) && method_exists($parameter, '__toString')
|
||
|
|
? (string) $parameter
|
||
|
|
: $parameter;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get / set the URL fragment to be appended to URLs.
|
||
|
|
*
|
||
|
|
* @param string|null $fragment
|
||
|
|
* @return $this|string|null
|
||
|
|
*/
|
||
|
|
public function fragment($fragment = null)
|
||
|
|
{
|
||
|
|
if (is_null($fragment)) {
|
||
|
|
return $this->fragment;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->fragment = $fragment;
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add a set of query string values to the paginator.
|
||
|
|
*
|
||
|
|
* @param array|string|null $key
|
||
|
|
* @param string|null $value
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function appends($key, $value = null)
|
||
|
|
{
|
||
|
|
if (is_null($key)) {
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (is_array($key)) {
|
||
|
|
return $this->appendArray($key);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->addQuery($key, $value);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add an array of query string values.
|
||
|
|
*
|
||
|
|
* @param array $keys
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
protected function appendArray(array $keys)
|
||
|
|
{
|
||
|
|
foreach ($keys as $key => $value) {
|
||
|
|
$this->addQuery($key, $value);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add all current query string values to the paginator.
|
||
|
|
*
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function withQueryString()
|
||
|
|
{
|
||
|
|
if (! is_null($query = Paginator::resolveQueryString())) {
|
||
|
|
return $this->appends($query);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add a query string value to the paginator.
|
||
|
|
*
|
||
|
|
* @param string $key
|
||
|
|
* @param string $value
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
protected function addQuery($key, $value)
|
||
|
|
{
|
||
|
|
if ($key !== $this->cursorName) {
|
||
|
|
$this->query[$key] = $value;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Build the full fragment portion of a URL.
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
protected function buildFragment()
|
||
|
|
{
|
||
|
|
return $this->fragment ? '#'.$this->fragment : '';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Load a set of relationships onto the mixed relationship collection.
|
||
|
|
*
|
||
|
|
* @param string $relation
|
||
|
|
* @param array $relations
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function loadMorph($relation, $relations)
|
||
|
|
{
|
||
|
|
$this->getCollection()->loadMorph($relation, $relations);
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Load a set of relationship counts onto the mixed relationship collection.
|
||
|
|
*
|
||
|
|
* @param string $relation
|
||
|
|
* @param array $relations
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function loadMorphCount($relation, $relations)
|
||
|
|
{
|
||
|
|
$this->getCollection()->loadMorphCount($relation, $relations);
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the slice of items being paginated.
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function items()
|
||
|
|
{
|
||
|
|
return $this->items->all();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Transform each item in the slice of items using a callback.
|
||
|
|
*
|
||
|
|
* @param callable $callback
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function through(callable $callback)
|
||
|
|
{
|
||
|
|
$this->items->transform($callback);
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the number of items shown per page.
|
||
|
|
*
|
||
|
|
* @return int
|
||
|
|
*/
|
||
|
|
public function perPage()
|
||
|
|
{
|
||
|
|
return $this->perPage;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the current cursor being paginated.
|
||
|
|
*
|
||
|
|
* @return \Illuminate\Pagination\Cursor|null
|
||
|
|
*/
|
||
|
|
public function cursor()
|
||
|
|
{
|
||
|
|
return $this->cursor;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the query string variable used to store the cursor.
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function getCursorName()
|
||
|
|
{
|
||
|
|
return $this->cursorName;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the query string variable used to store the cursor.
|
||
|
|
*
|
||
|
|
* @param string $name
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function setCursorName($name)
|
||
|
|
{
|
||
|
|
$this->cursorName = $name;
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the base path to assign to all URLs.
|
||
|
|
*
|
||
|
|
* @param string $path
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function withPath($path)
|
||
|
|
{
|
||
|
|
return $this->setPath($path);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the base path to assign to all URLs.
|
||
|
|
*
|
||
|
|
* @param string $path
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function setPath($path)
|
||
|
|
{
|
||
|
|
$this->path = $path;
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the base path for paginator generated URLs.
|
||
|
|
*
|
||
|
|
* @return string|null
|
||
|
|
*/
|
||
|
|
public function path()
|
||
|
|
{
|
||
|
|
return $this->path;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Resolve the current cursor or return the default value.
|
||
|
|
*
|
||
|
|
* @param string $cursorName
|
||
|
|
* @return \Illuminate\Pagination\Cursor|null
|
||
|
|
*/
|
||
|
|
public static function resolveCurrentCursor($cursorName = 'cursor', $default = null)
|
||
|
|
{
|
||
|
|
if (isset(static::$currentCursorResolver)) {
|
||
|
|
return call_user_func(static::$currentCursorResolver, $cursorName);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $default;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the current cursor resolver callback.
|
||
|
|
*
|
||
|
|
* @param \Closure $resolver
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public static function currentCursorResolver(Closure $resolver)
|
||
|
|
{
|
||
|
|
static::$currentCursorResolver = $resolver;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get an instance of the view factory from the resolver.
|
||
|
|
*
|
||
|
|
* @return \Illuminate\Contracts\View\Factory
|
||
|
|
*/
|
||
|
|
public static function viewFactory()
|
||
|
|
{
|
||
|
|
return Paginator::viewFactory();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get an iterator for the items.
|
||
|
|
*
|
||
|
|
* @return \ArrayIterator
|
||
|
|
*/
|
||
|
|
public function getIterator(): Traversable
|
||
|
|
{
|
||
|
|
return $this->items->getIterator();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determine if the list of items is empty.
|
||
|
|
*
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function isEmpty()
|
||
|
|
{
|
||
|
|
return $this->items->isEmpty();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determine if the list of items is not empty.
|
||
|
|
*
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function isNotEmpty()
|
||
|
|
{
|
||
|
|
return $this->items->isNotEmpty();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the number of items for the current page.
|
||
|
|
*
|
||
|
|
* @return int
|
||
|
|
*/
|
||
|
|
public function count(): int
|
||
|
|
{
|
||
|
|
return $this->items->count();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the paginator's underlying collection.
|
||
|
|
*
|
||
|
|
* @return \Illuminate\Support\Collection
|
||
|
|
*/
|
||
|
|
public function getCollection()
|
||
|
|
{
|
||
|
|
return $this->items;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the paginator's underlying collection.
|
||
|
|
*
|
||
|
|
* @param \Illuminate\Support\Collection $collection
|
||
|
|
* @return $this
|
||
|
|
*/
|
||
|
|
public function setCollection(Collection $collection)
|
||
|
|
{
|
||
|
|
$this->items = $collection;
|
||
|
|
|
||
|
|
return $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the paginator options.
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function getOptions()
|
||
|
|
{
|
||
|
|
return $this->options;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determine if the given item exists.
|
||
|
|
*
|
||
|
|
* @param mixed $key
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function offsetExists($key): bool
|
||
|
|
{
|
||
|
|
return $this->items->has($key);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the item at the given offset.
|
||
|
|
*
|
||
|
|
* @param mixed $key
|
||
|
|
* @return mixed
|
||
|
|
*/
|
||
|
|
public function offsetGet($key): mixed
|
||
|
|
{
|
||
|
|
return $this->items->get($key);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the item at the given offset.
|
||
|
|
*
|
||
|
|
* @param mixed $key
|
||
|
|
* @param mixed $value
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function offsetSet($key, $value): void
|
||
|
|
{
|
||
|
|
$this->items->put($key, $value);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Unset the item at the given key.
|
||
|
|
*
|
||
|
|
* @param mixed $key
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function offsetUnset($key): void
|
||
|
|
{
|
||
|
|
$this->items->forget($key);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Render the contents of the paginator to HTML.
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function toHtml()
|
||
|
|
{
|
||
|
|
return (string) $this->render();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Make dynamic calls into the collection.
|
||
|
|
*
|
||
|
|
* @param string $method
|
||
|
|
* @param array $parameters
|
||
|
|
* @return mixed
|
||
|
|
*/
|
||
|
|
public function __call($method, $parameters)
|
||
|
|
{
|
||
|
|
return $this->forwardCallTo($this->getCollection(), $method, $parameters);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Render the contents of the paginator when casting to a string.
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function __toString()
|
||
|
|
{
|
||
|
|
return (string) $this->render();
|
||
|
|
}
|
||
|
|
}
|