PHP code example of wavevision / dependent-selectbox

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

wavevision / dependent-selectbox example snippets

use Nette\Application\UI\Control;
use Nette\Application\UI\Presenter;
use Wavevision\DependentSelectBox\DependentComponent;
use Wavevision\DependentSelectBox\DependentData;
use Wavevision\DependentSelectBox\DependentValues;
use Wavevision\DependentSelectBox\Form\Form;

class FormComponent extends Control
{

    // add 'loadDependenData' signal and a few utilities
    use DependentComponent;

    public function __construct()
    {
        $this->monitor(Presenter::class, function (): void {
            // setup form in component - optionally pass form name (default 'form')
            $this->dependentComponentSetup();
            if ($this->hasReceivedDependentSignal()) {
                // if 'loadDependenData' signal received, do anything extra we need
            }
        });
    }

    protected function createComponentForm(): Form
    {
        // create your form as you are used to
        $form->addDependentSelectBox('name', 'Label', $form['someParentControl'])
            ->setDependentCallback(function (DependentValues $values): DependentData {
                // get ArrayHash values, if you perfer array, use getRawValues
                $formattedValues = $values->getValues();
                $data = new DependentData();
                if ($formattedValues->someParentControl === 'someDependentValue') {
                    $data->setItems(['firstItem' => 'firstValue']);
                }
                return $data;
            })
            // make the select box disabled when no values have been loaded
            ->setDisabledWhenEmpty()
            // if loaded values contain only one item, select it so the user does not have to
            ->setAutoSelectSingleValue()
            // if 'someOtherControl' has 'someValue', treat 'someControl' as parent
            ->addConditionalParent($form['someControl'], $form['someOtherControl'], 'someValue');
        // add form handlers etc.
        return $form;
    }
}