Simple way to optionally paginate a request

gistfile1.txt

<?php

/*
This will avoid doing this all the time.

public function index(Request $request)
{
    $query = Model::with(['foo, 'bar');

    return ModelResource::collection($request->input('per_page')
        ? $query->paginate($request->input('per_page')
        : $query->get()
    );
}

And allow this:

public function index(Request $request)
{
    return ModelResource::collection(Model::with(['foo, 'bar')->getOrPaginate());
}

Just add this to your base model:

/**
 * Create a new Eloquent query builder for the model.
 *
 * @param  \Illuminate\Database\Query\Builder  $query
 * @return \App\Eloquent\Builder|static
 */
public function newEloquentBuilder($query)
{
    return new Builder($query);
}
*/

namespace App\Eloquent;

use Illuminate\Database\Eloquent\Builder as LaravelBuilder;

class Builder extends LaravelBuilder
{
    /**
     * @param array $columns
     * @param string $pageName
     * @param null $page
     * @return \Illuminate\Contracts\Pagination\LengthAwarePaginator|\Illuminate\Database\Eloquent\Collection
     */
    public function getOrPaginate($columns = ['*'], $pageName = 'page', $page = null)
    {
        if ($perPage = request()->input('per_page')) {
            return $this->paginate($perPage, $columns = ['*'], $pageName, $page);
        }

        return $this->get($columns);
    }
}