safekat/ci4/app/Controllers/Facturacion/FacturasLineas.php

<?php

namespace App\Controllers\Facturacion;

use App\Models\Facturas\FacturaLineaModel;
use App\Models\Collection;


class FacturasLineas extends \App\Controllers\BaseResourceController
{
    protected $modelName = FacturaLineaModel::class;
    protected $format = 'json';

    protected static $controllerSlug = 'factura-lineas';


    public function datatable($factura_id = null){

        if ($this->request->isAJAX() && $factura_id != null) {

            $reqData = $this->request->getPost();
            if (!isset($reqData['draw']) || !isset($reqData['columns']) ) {
                $errstr = 'No data available in response to this specific request.';
                $response = $this->respond(Collection::datatable(  [], 0, 0, $errstr ), 400, $errstr);
                return $response;
            }
            $start = $reqData['start'] ?? 0;
            $length = $reqData['length'] ?? 5;
            $search = $reqData['search']['value'];
            $requestedOrder = $reqData['order']['0']['column'] ?? 0;
            //$order = FacturaModel::SORTABLE[$requestedOrder >= 0 ? $requestedOrder : 0];
            $dir = $reqData['order']['0']['dir'] ?? 'asc';

            $resourceData = $this->model->getResource($factura_id)->orderBy(1, $dir)->limit($length, $start)->get()->getResultObject();

            return $this->respond(Collection::datatable(
                $resourceData,
                $this->model->getResource($factura_id)->countAllResults(),
                $this->model->getResource($factura_id)->countAllResults()
            ));
        } else {
            return $this->failUnauthorized('Invalid request', 403);
        }
    }
}