#cakephp-utils

CakePHP 3 helper classes for building server-side REST API / DataTables-style responses: rendering action links (view/edit/delete/pdf/...) as HTML, wrapping JS callbacks for DataTables configuration, and a League Fractal transformer base that gains access to all of the above.

This is the standalone-class sibling of cakephp-utility: same API under the JeffersonSimaoGoncalves\Utils namespace instead of JeffersonSimaoGoncalves\Utility, with no Plugin class — nothing to load via Plugin::load(), just autoloaded PHP classes.

#Requirements

• PHP >=7.0
• league/fractal >=0.13.0
• airmanbzh/php-html-generator ^1.0

#Installation

composer require jeffersonsimaogoncalves/cakephp-utils

#Usage

#TableUtility — DataTables-ready response

use JeffersonSimaoGoncalves\Utils\TableUtility;

$table = new TableUtility();
$table->columns = $columns;
$table->order = [['0', 'asc']];
$table->url = '/users/index.json';
$table->data = $rows;
$table->setCount(count($rows), $totalCount);

return $this->response->withStringBody(json_encode($table->getOptions()));

getOptions() returns data, deferLoading, columns, order and (when url is set) an ajax key, ready to be consumed by a DataTables front-end configuration.

#CallbackTrait — JS function references in JSON

use JeffersonSimaoGoncalves\Utils\CallbackTrait;

class UsersController extends AppController
{
    use CallbackTrait;

    public function index()
    {
        $renderCallback = $this->callback('renderStatusColumn', ['active']);
        // JSON-serializable; encode it inside your DataTables config and resolve the
        // placeholder afterwards with CallbackFunction::resolve($json)
    }
}

#Links — render action links as HTML

use JeffersonSimaoGoncalves\Utils\Links\RenderLink;

// Configure the CSS classes used per link type (usually in config/app.php or bootstrap.php)
Configure::write('JeffersonSimaoGoncalves/Utils.RenderLink.linkEdit', [
    'classLink' => 'btn btn-sm btn-primary',
    'classIcon' => 'fa fa-pencil',
]);

class UsersTransformer extends \JeffersonSimaoGoncalves\Utils\Model\Transformer\LinkBaseTransformer
{
    public function transform($user)
    {
        $link = new RenderLink();
        $link->linkEdit('/users/edit/' . $user->id);

        return [
            'id' => $user->id,
            'actions' => $this->renderLink($link),
        ];
    }
}

RenderLink supports linkView(), linkEdit(), linkAdd(), linkBack(), linkPdf(), linkImage(), linkAccept() and a generic link(). Each type reads its classLink/classIcon from Configure, keyed by JeffersonSimaoGoncalves/Utils.RenderLink.<method>.

#Forms — status toggle / delete with confirmation

use JeffersonSimaoGoncalves\Utils\Links\RenderForm;

Configure::write('JeffersonSimaoGoncalves/Utils.RenderForm.formDelete', [
    'classLink' => 'btn btn-sm btn-danger',
    'classIcon' => 'fa fa-trash',
]);

$form = new RenderForm();
$form->formDelete('/users/delete/' . $user->id, $user->name);

echo $this->renderForm($form); // hidden POST form + confirm() dialog on click

#Credits

• Jèfferson Simão Gonçalves