'How can i paginate laravel collection?

here is how i trying to paginate:

$posts = Post::all()->sortByDesc("created_at")->pagination(1);

but i get this error:

Method Illuminate\Database\Eloquent\Collection::pagination does not exist.

laravelmodel-view-controllerpaginationlaravel-query-builderlaravel-collection


Solution 1:[1]

It is because paginate is Builder method, not collection.

You need to create paginator manually, how described here - https://laravel.com/docs/8.x/pagination#manually-creating-a-paginator

Solution 2:[2]

Creating a helper class

<?php

namespace App\Helpers;

use Illuminate\Container\Container;
use Illuminate\Pagination\LengthAwarePaginator;
use Illuminate\Pagination\Paginator;
use Illuminate\Support\Collection;

class PaginationHelper
{
    public static function paginate(Collection $results, $showPerPage)
    {
        $pageNumber = Paginator::resolveCurrentPage('page');
        
        $totalPageNumber = $results->count();

        return self::paginator($results->forPage($pageNumber, $showPerPage), $totalPageNumber, $showPerPage, $pageNumber, [
            'path' => Paginator::resolveCurrentPath(),
            'pageName' => 'page',
        ]);

    }

    /**
     * Create a new length-aware paginator instance.
     *
     * @param  \Illuminate\Support\Collection  $items
     * @param  int  $total
     * @param  int  $perPage
     * @param  int  $currentPage
     * @param  array  $options
     * @return \Illuminate\Pagination\LengthAwarePaginator
     */
    protected static function paginator($items, $total, $perPage, $currentPage, $options)
    {
        return Container::getInstance()->makeWith(LengthAwarePaginator::class, compact(
            'items', 'total', 'perPage', 'currentPage', 'options'
        ));
    }
}

open the composer.json file after want to add a helpers file, composer has a files key (which is an array of file paths) that you can define inside of autoload

"autoload": {
    "files": [
        "app/Helpers/PaginationHelper.php"
    ],
    "classmap": [
        "database/seeds",
        "database/factories"
    ],
    "psr-4": {
        "App\\": "app/"
    }
},

now you have to type this command in the terminal

composer dump-autoload

now you can create a paginate of collections like the example below

Route::get('/test_collect_pagintae', function () {

    $users = \App\User::get();

    $showPerPage = 20;

    $paginated = PaginationHelper::paginate($users, $showPerPage);

    return $paginated;
});

Solution 3:[3]

you can use this code in app/provider/serviceProvider in method boot

Collection::macro('paginate', function($perPage, $total = null, $page = null, $pageName = 'page') {
            $page = $page ?: LengthAwarePaginator::resolveCurrentPage($pageName);
            return new LengthAwarePaginator(
                $this->forPage($page, $perPage),
                $total ?: $this->count(),
                $perPage,
                $page,
                [
                    'path' => LengthAwarePaginator::resolveCurrentPath(),
                    'pageName' => $pageName,
                ]
            );
        });

Solution 4:[4]

SOLUTION

This is very well solution from simonhamp, thanks simonhamp

My suggestion is execute ->values() in AppServiceProvider like this below. It is important because when slice collection, keys are preserved, we don't want that for paginator.

Collection::macro('paginate', function ($perPage, $total = null, $page = null, $pageName = 'page') {
    $page = $page ?: LengthAwarePaginator::resolveCurrentPage($pageName);

    return new LengthAwarePaginator(
        $total ? $this : $this->forPage($page, $perPage)->values(),
        $total ?: $this->count(),
        $perPage,
        $page,
        [
            'path' => LengthAwarePaginator::resolveCurrentPath(),
            'pageName' => $pageName,
        ]
    );
});

Solution 5:[5]

Try this code:


//convert to array
$posts = Post::all()->sortByDesc("created_at")->toArray();

//Create new pagination
$currentPage = LengthAwarePaginator::resolveCurrentPage();
$perPage = 3;
$currentItems = array_slice($posts, $perPage * ($currentPage - 1), $perPage);
//with path of current page
$posts = (new LengthAwarePaginator($currentItems, count($posts ), $perPage, $currentPage))->setPath(route('posts....'));

//Convert array of array to array of object
$posts->each(function ($item, $itemKey) use($posts) {
     $posts[$itemKey] = (Object)$item;
});

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1
Solution 2 Ehsan Rafiee
Solution 3
Solution 4 Adrian
Solution 5 Công Th?nh

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